Network Connectivity Troubleshooting: The Complete Checklist for IT Professionals

Network troubleshooting checklist

Introduction

Your phone rings at 9:47 AM on a Tuesday. “The network is down!” a panicked user shouts. Your heart rate spikes. You have maybe 15 minutes before angry emails start flooding in, then management gets involved. In that moment, you don’t need theory—you need a systematic, proven approach to find and fix the problem fast.

Network connectivity issues are inevitable. What separates experienced IT professionals from frustrated ones is having a repeatable, methodical troubleshooting process that quickly isolates problems instead of randomly trying fixes. This guide provides exactly that: a battle-tested, step-by-step troubleshooting checklist that has resolved thousands of network issues.


Why Network Connectivity Fails

Before we dive into troubleshooting, understand the most common causes. Network problems don’t appear randomly—they’re symptoms of underlying issues:

Physical Layer Problems (40% of issues):

  • Loose, damaged, or unplugged network cables
  • Faulty network interface cards (NICs)
  • Power failures affecting network hardware
  • Broken fiber optic cables or connections

Configuration Issues (30% of issues):

  • Incorrect IP address settings
  • DHCP not functioning
  • Wrong gateway or DNS configuration
  • IP address conflicts (duplicate IPs)

Intermediate Network Issues (15% of issues):

  • Router or switch failures
  • Firewall rules blocking traffic
  • ISP outages or line problems
  • Routing table corruption

Application/Service Issues (10% of issues):

  • DNS server failures
  • DHCP server down
  • Firewall misconfiguration
  • Service not running

External Issues (5% of issues):

  • ISP outages
  • DNS provider issues
  • Malware or security threats
  • Denial of Service (DoS) attacks

The majority of problems (70%) are in the Physical, Configuration, or intermediate network layers—and that’s good news. These are the fastest to diagnose and fix. Before you waste time rebuilding servers or updating code, verify the fundamentals.


The 7-Step Troubleshooting Methodology

Professional network troubleshooters follow this proven methodology. It works whether you’re dealing with one user or the entire organization.

Step 1: Define and Document the Problem

Your first action: Stop. Don’t touch anything yet. Gather information.

Ask these critical questions:

  1. What exactly is not working?
    • Can’t access a specific website?
    • Can’t connect to server?
    • Extremely slow?
    • Intermittent disconnections?
    Why this matters: “The network is down” is vague. “Users can’t access the billing server” is actionable.
  2. When did it start?
    • Just now?
    • This morning?
    • For the past hour?
    Why this matters: Problems that just started suggest recent changes. Long-standing issues might be configuration-related.
  3. How many users are affected?
    • One person at one desk?
    • Entire department?
    • Everyone in the building?
    • Across all locations?
    Why this matters: One user = likely workstation or local issue. Everyone = likely upstream (ISP, core network, or major device failure).
  4. What was the last thing they did before it broke?
    • Did they restart anything?
    • Download or install something?
    • Move to a different location?
    • Change any settings?
    Why this matters: Changes often trigger problems. Revert the change as a first test.
  5. Is this a complete outage or degraded performance?
    • Zero connectivity (can’t connect at all)?
    • Or slow/intermittent (connects but sluggish)?
    Why this matters: Complete outage suggests hardware/connection problem. Performance degradation suggests congestion or misconfiguration.

Document everything in a ticket or note. You’ll need this information for escalation and troubleshooting complex issues.


Step 2: Check the Physical Layer First

This is where 40% of problems hide. Most IT professionals overlook this and jump straight to commands, wasting precious time.

2A: Verify Network Cable Connections

Action items:

  1. Check the connection at the device:
    • Look at the network port where the cable connects to the computer/device
    • Ensure the cable is fully inserted (you should hear/feel a click)
    • Look for the connection indicator light on the network port
    • If the light is off or amber instead of green, the connection isn’t established
  2. Follow the cable:
    • Trace the cable from the device to the switch or wall jack
    • Look for visible damage: cuts, kinks, crushing, exposed wires
    • Check for loose connections at both ends
    • Verify it’s plugged into the correct port
  3. Physical inspection:
    • Check that the RJ45 connector (the plastic plug) isn’t cracked
    • Ensure the clip on the connector is intact
    • Look for bent pins inside the connector
  4. If suspicious, test with a known-good cable:textProblem symptoms: No connection light Action: Swap the cable with one from a working device Result: → If connection works now: Original cable is bad → If still fails: Problem is elsewhere (NIC, port, switch)

Real-world example: A company experienced complete network loss in one office. After 30 minutes of troubleshooting router configs, someone noticed the network cable was partially unplugged. A quick push fixed it. Lesson: Always check physical connections first.

2B: Verify Network Device Power Status

Action items:

  1. Check power on all network devices:
    • Router (gateway) – Check power light
    • Network switch (if you have one) – Check power light
    • Modem (if separate from router) – Check power light
    • Network printers – Check power status
  2. Look for abnormal LED indicators:
    • Green/steady = Good
    • Orange/amber = Link established but no data flow (potential issue)
    • Red or off = Problem
    • Blinking rapidly = Processing (normal during startup/connection)
  3. If devices appear powered but unresponsive:
    • Try a power restart (wait 30 seconds before restarting)
    • Check power cable connections
    • Test the outlet with another device

2C: Check Network Card Status in Device Manager (Windows)

If the physical connection looks good but still no network access:

Steps:

  1. Right-click the Start menu → Select “Device Manager”
  2. Click the arrow next to “Network adapters”
  3. Look for your network card (likely “Ethernet” or “Wi-Fi Adapter”)

What to look for:

StatusProblemSolution
Green checkmarkEnabled and workingMove to Step 3
Yellow exclamation markDriver problem or misconfigurationUpdate or reinstall driver
X or down arrowDisabledRight-click → Enable
Not visibleHardware problem or removedCheck physical connection, restart computer

To update drivers:

  1. Right-click the network adapter → “Update driver”
  2. Choose “Search automatically for updated driver software”
  3. Restart computer after installation completes

2D: Restart Network Equipment (The Nuclear Option)

Sometimes the simplest fix works best. A full restart clears memory leaks and temporary glitches.

Proper restart procedure:

Disconnect modem from power
2. Wait 30 seconds (important - allows capacitors to fully discharge)
3. Disconnect router from power
4. Wait 30 seconds
5. Plug modem back in
6. Wait 60 seconds for full startup (watch for stable lights)
7. Plug router back in
8. Wait 2-3 minutes for full boot
9. Try connecting again

Why 30 seconds? Network devices have capacitors that hold small charges. A quick on-off won’t clear memory issues. 30 seconds ensures a proper cold restart.

Common result: 70-80% of intermittent issues resolve with a proper restart.


Step 3: Check IP Configuration

At this point, we know the physical connection is working. Now verify the device has proper IP settings to communicate on the network.

3A: Run IPCONFIG (Windows) or IFCONFIG (Linux/Mac)

Windows:

Open Command Prompt as Administrator (right-click Command Prompt → “Run as administrator”):

ipconfig

Expected output:

Ethernet adapter Ethernet:

Connection-specific DNS Suffix: company.local
IPv4 Address. . . . . . . . . : 192.168.1.45
Subnet Mask . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . : 192.168.1.1
8.8.8.8

What each line means:

FieldPurposeWhat to Check
IPv4 AddressYour computer’s address on networkShould start with 192.168.x.x or 10.x.x.x (not 169.254.x.x)
Subnet MaskNetwork boundary definitionUsually 255.255.255.0
Default GatewayRouter/path out of networkShould match your router (usually 192.168.1.1)
DNS ServersAddress lookup serviceShould match company DNS or public DNS (8.8.8.8)

Red flags:

ProblemCauseFix
IP is 169.254.x.xDHCP failure, no auto-configRestart, check DHCP server, manually assign IP
No IP at allNetwork adapter disabled or not communicating with DHCPRestart computer, check adapter in Device Manager
IPv4 Address is blankDHCP never assigned addressRestart computer, wait 5 minutes for DHCP
DNS is blankDNS not configuredAdd DNS server in network settings

3B: Verify DHCP is Working

DHCP is the automatic IP assignment service. If it’s down, devices can’t get network addresses.

Test DHCP:

Windows Command Prompt (as Administrator):

ipconfig /renew

Watch the output:

  • If the command completes and shows an IP address assigned: DHCP is working
  • If you get “DHCP is not enabled” error: DHCP server is down or not configured
  • If IP doesn’t change: You might be statically assigned (not using DHCP)

If DHCP isn’t working:

  1. Restart the DHCP server (if you have access)
  2. Check that devices are set to obtain IP automatically
  3. Verify router DHCP service is enabled
  4. If widespread, contact your ISP or network administrator

3C: Check for IP Address Conflicts

When two devices have the same IP, both lose network connectivity.

Symptoms:

  • Computer says “IP conflict detected”
  • Network connects then disconnects within seconds
  • Only works when one computer is off

Check for conflicts:

Open Command Prompt and run:

ipconfig /all

Look for your IP address and MAC address. Then search for duplicates on your network. This requires network administration tools or contacting IT.

Common cause: A static IP device (printer, server) conflicts with DHCP range. Solution: Adjust DHCP range to exclude static IPs.


Step 4: Test Basic Connectivity with PING

PING tests if devices can reach each other. This is your primary diagnostic tool.

4A: Ping Your Default Gateway (Router)

This tests local network connectivity:

Windows Command Prompt:

ping 192.168.1.1

Or with your actual gateway IP (from ipconfig):

ping [your gateway IP]

Expected result:

Reply from 192.168.1.1: bytes=32 time=2ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64

Ping statistics for 192.168.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms

What it means:

  • Success (all replies received): Local network is working
  • All timeouts (“Request timed out”): Can’t reach router – likely network cable problem or router down
  • Some packet loss: Intermittent connectivity or congestion

4B: Ping an External Address (Internet Connectivity)

If gateway ping works, test external connectivity:

ping 8.8.8.8

Google’s DNS server is usually available and reliable for testing.

Expected result:

Reply from 8.8.8.8: bytes=32 time=24ms TTL=52
Reply from 8.8.8.8: bytes=32 time=23ms TTL=52
Reply from 8.8.8.8: bytes=32 time=25ms TTL=52
Reply from 8.8.8.8: bytes=32 time=24ms TTL=52

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 23ms, Maximum = 25ms, Average = 24ms

Interpretation:

ResultProblemLocation
Gateway works, 8.8.8.8 failsISP connection down, modem issue, or firewall blocking external trafficBetween you and ISP
Gateway fails, never get to 8.8.8.8Local network problemYour equipment
Both work but very high latency (200ms+) to 8.8.8.8Congestion or routing issueYour connection or ISP

4C: Ping a Domain Name (DNS Resolution)

If 8.8.8.8 works but websites don’t load, the problem is likely DNS:

ping google.com

What happens:

  • If it works: DNS resolution is working, internet connectivity confirmed
  • If it says “Ping request could not find host google.com”: DNS is broken (next step)
  • If it resolves to an IP but then timeouts: Gateway routing problem

Step 5: Test DNS Resolution

DNS translates domain names (google.com) to IP addresses (142.251.41.14). If DNS is broken, internet access is broken.

5A: Use NSLOOKUP to Query DNS

Windows:

nslookup google.com

Expected output:

Server: 192.168.1.1
Address: 192.168.1.1#53

Non-authoritative answer:
Name: google.com
Address: 142.251.41.14

What to check:

  • Does it resolve to an IP address? (Success)
  • Does it say “Can’t find google.com: Non-existent domain”? (DNS server not responding)
  • Does it say “Timed out”? (DNS server down or unreachable)

5B: If DNS Fails, Check Your DNS Server

Your system is configured to use a specific DNS server for lookups. If that server is down, DNS breaks.

Check current DNS server:

Windows Command Prompt:

ipconfig /all | findstr /c:"DNS Servers"

Output example:

DNS Servers . . . . . . . . . . : 192.168.1.1
8.8.8.8

5C: Try a Different DNS Server

Sometimes your configured DNS server is down. Google provides reliable public DNS:

nslookup google.com 8.8.8.8

If this works but your regular DNS doesn’t:

  • Your company’s DNS server is down
  • Contact IT or network administrator
  • Temporarily use Google DNS (8.8.8.8) or Cloudflare (1.1.1.1)

Permanently change DNS (Windows):

  1. Go to Settings → Network & Internet → Advanced network settings
  2. Click “Change adapter options”
  3. Right-click your network adapter → “Properties”
  4. Double-click “Internet Protocol Version 4 (TCP/IPv4)”
  5. Change DNS servers (or have IT do this)
  6. Click OK and test connectivity

Step 6: Trace the Network Path with TRACERT

If ping works but you have intermittent problems or extreme slowness, use TRACERT to see the path packets take:

Windows:

tracert google.com

Expected output:

Tracing route to google.com [142.251.41.14]
over a maximum of 30 hops:

1 2 ms 2 ms 2 ms 192.168.1.1
2 12 ms 12 ms 12 ms 10.0.0.1 [ISP Gateway]
3 * * * Request timed out.
4 35 ms 34 ms 34 ms 142.251.41.14

Trace complete.

What it shows:

  • Each hop (router) between you and the destination
  • Round-trip time to each hop
  • Where the connection fails (if it does)

Red flags:

  • Timeouts at one specific hop: That router or ISP segment has issues
  • Very high latency (200ms+) at one hop: Congestion at that point
  • Connection drops before reaching destination: Problem between you and destination

Real example: A company had slow access to their cloud provider. Tracert showed that ISP’s fourth hop was timing out, then recovering. This indicated ISP backbone congestion. After reporting to ISP, they remedied it.


Step 7: Performance Monitoring and Long-Term Issues

For intermittent problems that don’t show up during basic testing, continuous monitoring is essential.

7A: Monitor with Network Diagnostic Tools

Manual ping commands are great for one-off testing, but production networks need automated monitoring. This is where dedicated tools become invaluable.

What to monitor:

  • Ping latency to critical devices (baseline should be consistent)
  • Packet loss percentage (should always be 0%)
  • Availability of key services (DNS, email, file shares)
  • Internet connection uptime

Example scenario: A company experienced sporadic slowness throughout the day. Occasional ping tests showed normal latency. Only by setting up continuous monitoring did they discover that latency spiked to 300ms during 11 AM-1 PM when employees used the backup system. They then scheduled backups to off-hours.

7B: Using Steelsonic Ping Monitor for Continuous Monitoring

For ongoing network reliability, Steelsonic Ping Monitor provides automated, 24/7 network connectivity monitoring.

How it helps with troubleshooting:

Rapid Problem Detection: Instead of waiting for user complaints, monitoring immediately alerts you to:

  • Connectivity drops to critical servers
  • Latency spikes on your ISP connection
  • Availability issues with cloud services
  • Packet loss indicating network congestion

Historical Data for Root Cause Analysis: When problems occur, you can examine the monitoring data to see:

  • When exactly the problem started
  • Whether it was gradual (degradation) or sudden (outage)
  • Patterns (e.g., always happens at 3 PM, always affects one location)
  • What else was happening at that time (correlate with other events)

Real-time Alerting: Get notified immediately when issues occur:

  • Email alerts for your team
  • SMS/Phone notifications for critical issues
  • Webhook integration with Slack or other platforms
  • Automatic escalation if issues persist

Key capabilities for troubleshooting:

  • Ping monitoring to track uptime and latency
  • Port monitoring to verify specific services (email, web, databases)
  • Keyword monitoring to check if web services are actually responding correctly
  • Historical graphs to spot trends and patterns
  • Multi-location monitoring to identify if problems are local or widespread

Real-world troubleshooting scenario using monitoring:

Symptom: Remote office users complain of slow connectivity

Without monitoring: Guess and check
- Maybe the ISP is slow?
- Maybe the server is overloaded?
- Maybe the WAN link is congested?
- Waste 2 hours troubleshooting

With Steelsonic Ping Monitor:
- Check historical latency data
- See that latency to remote office is normal (5ms)
- But latency to cloud services spiked from 45ms to 250ms
- Check when this started: 10:15 AM
- Look at what changed at 10:15 AM: Someone started a large file transfer
- Problem identified in 5 minutes, fix implemented immediately

Recommended monitoring setup:

Monitor these critical points from your network:

  1. Your default gateway (router) – Verify local network health
  2. Your DNS servers – Catch DNS failures immediately
  3. Your ISP gateway/connection – Track external connectivity
  4. Business-critical servers – Email, file storage, applications
  5. Cloud services – If you use Office 365, Salesforce, AWS, etc.
  6. Important websites – If clients need to access them

Complete Network Troubleshooting Checklist

Use this checklist for systematic troubleshooting:

Physical Layer Check

  •  Network cable fully connected (both ends)
  •  Cable visible damage check (cuts, kinks)
  •  Network connection light on adapter is green
  •  Network device (router/switch) power is on
  •  All cables are accounted for and secure
  •  Restart network equipment (modem and router)

IP Configuration Check

  •  Run ipconfig and verify IPv4 address exists
  •  Verify IP is NOT 169.254.x.x (that’s failed DHCP)
  •  Verify gateway IP is correct
  •  Verify DNS servers are listed
  •  IP is not 0.0.0.0 (completely unconfigured)
  •  Run ipconfig /renew to get fresh IP

Connectivity Test

  •  Ping gateway (e.g., ping 192.168.1.1) – expect 0% loss
  •  Ping external IP (e.g., ping 8.8.8.8) – expect 0% loss, latency <100ms
  •  Check for packet loss (should be 0%)
  •  Check latency is reasonable for your network

DNS Test

  •  nslookup google.com resolves successfully
  •  DNS server listed in ipconfig is reachable
  •  Ping domain names (e.g., ping google.com) works
  •  Try alternative DNS if company DNS fails (e.g., nslookup google.com 8.8.8.8)

Internet Connectivity Test

  •  tracert google.com completes without excessive timeouts
  •  All hops reply (or acceptable number of timeouts)
  •  No unusually high latency at any hop
  •  Connection completes to destination

Service Verification

  •  If email broken: Email server reachable and responding
  •  If intranet broken: Web server reachable and responding
  •  If file sharing broken: File server reachable and responding
  •  Services responding on expected ports (use Steelsonic Port Monitoring)

Documentation

  •  Symptoms recorded
  •  When problem started noted
  •  Number of users affected recorded
  •  Troubleshooting steps taken logged
  •  Resolution documented for future reference

Common Troubleshooting Scenarios and Solutions

Scenario 1: Single User Can’t Connect

Symptoms: One person at one desk has no network

Likely causes: Local to that device

Troubleshooting order:

  1. Check physical cable connection
  2. Restart their network adapter (or computer)
  3. Run ipconfig – verify they have IP
  4. Ping gateway from their computer
  5. If all pass, but other sites fail: DNS issue

Typical fix: Restarted network adapter or reboot computer (90% success rate)

Scenario 2: Entire Department Can’t Connect

Symptoms: 20+ people on same network segment can’t connect

Likely causes: Switch, router, or network segment failure

Troubleshooting order:

  1. Check power on network switch
  2. Verify internet connection still works (via WiFi or another device)
  3. Run ping from a working computer to gateway
  4. If fails: Network connectivity problem (ISP or device)
  5. If passes: DHCP server may be down

Typical fix: Restart network switch or contact ISP (if internet is down)

Scenario 3: Intermittent Connectivity

Symptoms: Connection drops randomly, comes back on its own

Likely causes: Faulty cable, overheating hardware, interference (Wi-Fi)

Troubleshooting order:

  1. Inspect cable for damage, run tests during “down” periods
  2. Check device temperature (restart if overheating)
  3. If Wi-Fi: Check signal strength, move closer or adjust access point
  4. Enable continuous monitoring with Steelsonic Ping Monitor to catch pattern
  5. Identify if pattern correlates with time of day or specific activity

Typical fix: Replace faulty cable or power down overheating device

Scenario 4: Very Slow Network (But Connected)

Symptoms: Connected but speeds are 1/10th normal

Likely causes: Congestion, bandwidth-heavy process, or interference

Troubleshooting order:

  1. Ping gateway – should be <10ms (if not, congestion)
  2. Check Task Manager for high network usage
  3. Run tracert to see if problem is local or upstream
  4. Use bandwidth monitor to see what’s consuming data
  5. If ISP line: Contact ISP, may need bandwidth upgrade

Typical fix: Identify bandwidth-consuming process and stop it, or upgrade link

Scenario 5: WiFi Works, Ethernet Doesn’t (or Vice Versa)

Symptoms: One connection type works, other doesn’t

Likely causes: Adapter driver, device-specific issue

Troubleshooting order:

  1. Check Device Manager for yellow warnings on failed adapter
  2. Update drivers for failed adapter
  3. Disable then re-enable the adapter
  4. If Ethernet fails: Check physical cable, swap with known-good cable
  5. If both fail: Network configuration issue

Typical fix: Update driver or swap cable


Pro Tips for Faster Troubleshooting

  1. Keep a baseline: Document normal latency times to your gateway and important servers. Deviations indicate problems.
  2. Use continuous monitoring: Set up Steelsonic Ping Monitor to catch problems before users notice. Historical data makes root cause analysis much faster.
  3. Divide and conquer: Test one thing at a time. If you change multiple things simultaneously, you won’t know which fix worked.
  4. Document everything: Keep notes of problems and solutions. You’ll encounter similar issues again.
  5. Know your network: Understand normal latency, typical device IP ranges, and critical services. This helps you spot abnormalities quickly.
  6. Test from multiple locations: If possible, test from different computers and locations. This helps isolate whether the problem is device-specific or network-wide.
  7. ISP status page: Bookmark your ISP’s status page. Check it when you suspect external problems.
  8. Restart as last resort, not first: While rebooting fixes many issues, it shouldn’t be your first step. Understand the problem first.

Tools Reference

Windows Command-Line Tools

CommandPurposeExample
ipconfigView IP configurationipconfig
ipconfig /allDetailed IP infoipconfig /all
ipconfig /renewGet new IP from DHCPipconfig /renew
ipconfig /flushdnsClear DNS cacheipconfig /flushdns
pingTest connectivityping 192.168.1.1
tracertTrace network pathtracert google.com
nslookupQuery DNSnslookup google.com
netstatShow connectionsnetstat -an
getmacView MAC addressgetmac

Linux/Mac Command-Line Tools

CommandPurposeExample
ifconfig / ipView IP configurationifconfig or ip addr
pingTest connectivityping 192.168.1.1
tracerouteTrace network pathtraceroute google.com
digQuery DNSdig google.com
nslookupQuery DNS (alternative)nslookup google.com
netstatShow connectionsnetstat -an
routeView routing tableroute -n
ifdown / ifupControl interfacessudo ifdown eth0

Graphical Tools (Windows)

  • Device Manager: Check network adapter status
  • Task Manager: Monitor network usage
  • Settings > Network & Internet: Configure connections
  • Network Diagnostics: msdt.exe -id NetworkDiagnosticsNetworkAdapter

Automated Monitoring

For production environments, manual testing isn’t enough:

Steelsonic Ping Monitor

  • 24/7 monitoring of network connectivity
  • Real-time alerts via email, SMS, or Slack
  • Historical data for trend analysis
  • Port monitoring for service availability
  • Affordable pricing for unlimited hosts
  • Perfect for small to mid-market organizations

When to Escalate

Not every problem requires advanced troubleshooting. Know when to escalate:

Escalate to ISP when:

  • tracert shows failures at ISP hops
  • External sites unreachable but internal sites work
  • ISP status page indicates outage
  • Modem unable to establish connection

Escalate to vendor when:

  • Hardware shows physical damage
  • Device repeatedly fails even after restart
  • Error messages indicate hardware failure
  • Device not functioning despite driver updates

Escalate to application team when:

  • Network connectivity confirmed OK
  • Problem specific to one application
  • Application logs show errors
  • Other applications on same network work fine

Escalate to management when:

  • Extended outage likely (>1 hour)
  • Multiple departments affected
  • Business-critical systems down
  • External communication needed (customer notification)

Creating a Network Baseline

Proactive monitoring prevents most problems. Establish a baseline of normal network performance:

Steps:

  1. During a normal business day, ping your gateway 100 times and record results
  2. Document normal latency (usually 1-5ms for local gateway)
  3. Record normal packet loss (should be 0%)
  4. Test external connectivity and record latency (usually 20-50ms to major ISPs)
  5. Document normal speeds with speedtest
  6. Record DNS lookup times (usually <100ms)

Once you have baseline:

  • Any deviation of >50% indicates potential problems
  • Latency doubling suggests congestion
  • Any packet loss is abnormal and should be investigated

Use this data to:

  • Set alert thresholds in your monitoring tool
  • Train support staff on what’s “normal” for your environment
  • Justify upgrades to management (“See how latency has increased 60% since 2022?”)

Compliance and Documentation

Many organizations must prove uptime and network reliability:

Requirements often include:

  • Proof of network monitoring (24/7)
  • Documentation of outages and resolution times
  • Evidence of network maintenance
  • Response procedures for network failures

Steelsonic Ping Monitor helps with compliance by:

  • Generating uptime reports automatically
  • Logging all alert events with timestamps
  • Providing historical data for audits
  • Showing maintenance windows and issues

Summary: Your Troubleshooting Superpower

Network problems are inevitable. But with a systematic approach, you transform from frantically trying random fixes to confidently isolating and resolving issues in minutes instead of hours.

Your new process:

  1. Define the problem clearly
  2. Check physical layer first
  3. Verify IP configuration
  4. Test basic connectivity with ping
  5. Verify DNS works
  6. Trace the network path if needed
  7. Implement continuous monitoring

Follow this process, and you’ll resolve 95% of network issues yourself without escalation.

Next steps:

  •  Bookmark this page for reference
  •  Share the troubleshooting checklist with your team
  •  Test your network connectivity today using the ping and ipconfig commands
  •  Implement continuous monitoring with Steelsonic Ping Monitor for 24/7 visibility
  •  Create your network baseline so you know what “normal” looks like
  •  Document your company’s network topology (what’s connected where)

The best time to prepare for network problems is before they happen. Monitoring and documentation are your insurance policy.


Additional Resources


About Steelsonic

Steelsonic develops essential software for IT support professionals and system administrators. Our comprehensive suite of tools helps organizations achieve network reliability and uptime.

Steelsonic Ping Monitor → – 24/7 network monitoring, real-time alerts, unlimited hosts

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Whether you’re managing a small office or distributed enterprise, Steelsonic tools scale to meet your needs. Start your free trial today and transform from reactive to proactive network management.

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