Wi-Fi & routers

Router firmware update fails or causes problems

A firmware update that fails midway or causes new issues afterward is usually recoverable with a retry, a factory reset, or reverting settings, but interrupting an update in progress can be more serious.

Difficulty
Moderate
Time
15–45 minutes
DIY cost
$0
Pro cost
$0–$100

Symptoms

  • Update download or install fails repeatedly
  • Router seems to freeze during an update, with unusual light patterns
  • Wi-Fi or specific features stop working right after an update
  • Router won't come back online after an update

Likely causes

  • CommonWeak internet connection during download of the updateA dropped connection mid-download can leave the update incomplete.
  • CommonUpdate interrupted by power loss or manual restartTurning off a router mid-update can corrupt its firmware.
  • PossibleNew firmware version has a bug affecting specific featuresOccasionally a router manufacturer ships an update with its own new issues.
  • Less commonCustom settings incompatible with the new firmwareAdvanced settings sometimes don't carry over cleanly across major firmware versions.

What to do

  1. Never unplug the router while an update is actively installing; wait even if it seems to be taking a long time, usually up to 10–15 minutes.
  2. If the update fails with an error, retry it from the router's app or admin page.
  3. If the router won't respond after an update, wait 5–10 minutes, since some routers take longer than expected to reboot after firmware changes.
  4. If it's still unresponsive, try a power cycle: unplug for 30 seconds and plug back in.
  5. If problems (like Wi-Fi dropping) started right after an update, check the manufacturer's site or forums for known issues with that firmware version; some offer a way to roll back.
  6. If the router is completely unresponsive after a failed update, look up the manufacturer's recovery mode instructions, which often involve holding the reset button in a specific way.
  7. As a last resort, factory reset the router and reconfigure it from scratch.

Tools and parts

  • Computer for accessing router support pages

When to call a pro

If a router is completely unresponsive ('bricked') after a failed firmware update and recovery mode doesn't work, it may need replacement or manufacturer repair.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.