Start Here: The Universal First Step

Before diving into specific issues, always try this first: power cycle your router and modem. Unplug the modem, wait 30 seconds, plug it back in and wait for it to connect. Then unplug the router, wait 30 seconds, and plug it back in. Wait 90 seconds for everything to fully restart. This alone resolves a surprising number of issues.

Problem 1: No Internet Connection

Symptoms: Devices connect to Wi-Fi but show "No Internet" or pages won't load.

Likely causes and fixes:

  1. ISP outage: Check your ISP's status page or app. If your ISP is down, there's nothing to fix on your end — wait it out.
  2. Modem issue: Connect a device directly to your modem via Ethernet (bypassing the router). If you still have no internet, the problem is with your modem or ISP line — contact your ISP.
  3. WAN cable unplugged: Check that the Ethernet cable between your modem and router's WAN port is fully seated at both ends.
  4. PPPoE credentials invalid: If you have DSL internet, your router needs your ISP username and password. Log into the admin panel and re-enter these credentials under WAN settings.
  5. IP address conflict: Log into the admin panel and verify DHCP is enabled. If needed, release and renew the WAN IP address.

Problem 2: Slow Wi-Fi Speeds

Symptoms: Speed tests show much lower speeds than your plan provides.

Likely causes and fixes:

  • Too far from the router or obstacles: Move closer to the router or reposition it centrally.
  • Wrong frequency band: Check if you're on 2.4 GHz instead of 5 GHz. The 2.4 GHz band is slower but longer-range. Connect to the 5 GHz network for better speeds.
  • Congested channel: Use a Wi-Fi analyzer to find a less crowded channel and manually set your router to use it.
  • Outdated router firmware: Update firmware via the admin panel.
  • Too many connected devices consuming bandwidth: Check the router's traffic monitor and identify bandwidth-heavy devices.

Problem 3: Wi-Fi Keeps Dropping

Symptoms: Connection drops randomly and reconnects, or drops at predictable times.

Likely causes and fixes:

  • Overheating router: Ensure the router has adequate ventilation. Keep it off carpets and away from enclosed spaces. Overheating causes throttling and dropouts.
  • Wireless interference: Microwaves, baby monitors, and neighboring networks can disrupt your signal. Switch to the 5 GHz band or change channels.
  • DHCP lease conflicts: Reserve IP addresses for key devices (like your desktop or smart TV) in the router's DHCP settings to prevent address conflicts.
  • ISP instability: If the connection drops on a wired device too, the issue is with your ISP or modem, not the router.
  • Aging hardware: If the router is more than 5–7 years old, internal components degrade. It may be time for a replacement.

Problem 4: A Device Won't Connect to Wi-Fi

Symptoms: One specific device can't connect while others work fine.

Steps to try:

  1. Forget the network on the device and reconnect from scratch.
  2. Confirm the device is using the correct Wi-Fi password.
  3. Restart the device itself (not just the router).
  4. Check if MAC address filtering is enabled on the router — if so, add the device's MAC address to the allow list.
  5. Check DHCP client limits — some routers cap the number of devices that can receive an IP address. Increase the DHCP pool size in the admin panel.

Problem 5: Slow or Failing Wired (Ethernet) Connection

Symptoms: Devices connected via Ethernet cable are slow or won't get an IP address.

  • Check the cable: Try a different Ethernet cable. Cables wear out and go bad over time.
  • Check the port: Try a different LAN port on the router. Individual ports can fail.
  • Check link speed: On Windows, go to Network Adapter settings and verify the connection speed. A gigabit device connecting at 100 Mbps may indicate a cable or port issue.

When to Contact Your ISP

Some problems are outside the router's control entirely. Contact your ISP if:

  • You have no internet even when connecting directly to the modem.
  • You experience consistent slow speeds regardless of device or connection type.
  • Your modem's status lights show errors or no sync.
  • The problem is intermittent and follows no pattern related to your home network usage.

When to Consider Replacing Your Router

If your router is more than 5–6 years old, struggles with more than a handful of devices, or has persistent issues that survive factory resets, a replacement is likely the most practical solution. Modern routers offer substantially better range, device capacity, security, and performance.