Your TP-Link Archer BE800 firmware update is stuck at some point in the process. Maybe the front LED matrix display is showing a progress bar that hasn't budged in 30 minutes. Or the Tether app keeps saying "Update failed" every time you try again. The auto-update might even be running nightly without ever finishing.
Skip the app entirely and use the web UI instead. Connect a laptop directly to the router by Ethernet, visit tplinkwifi.net in a browser, log in, and head to Advanced > System > Firmware Upgrade. The web UI gives clearer error messages and doesn't lose connection when your phone disconnects from WiFi mid-update.
If the web UI also stalls or fails, work through the fixes below in this order.
Why the BE800 update gets stuck
The Archer BE800 is a BE19000 tri-band Wi-Fi 7 router with 10GbE ports, including an RJ45/SFP+ combo. Multiple things can go wrong during a firmware update.
- Internet drop during download: the WAN connection needs to stay steady for the full firmware file, which is around 100 MB.
- Leftover storage from a failed try: partial downloads often stick around and eat up space.
- Auto-update and manual update collide: the scheduled update kicks in while you're doing a manual one.
- Outdated Tether app: the app can't process the new firmware if it's not up to date itself.
- WAN port renegotiation: the 10G port drops speed mid-download if your modem can't hold the link.
- HomeShield blocking the server: the security feature sometimes flags TP-Link's firmware servers as a threat.
- Jumping firmware versions: skipping too many versions at once may require an intermediate step.
Use the web UI instead of the Tether app
Connect a computer directly to one of the LAN ports on the BE800. Open a browser and go to tplinkwifi.net. Log in with your admin credentials (the default is printed on the bottom label).
Go to Advanced > System > Firmware Upgrade and click Check for Upgrade. The web UI handles the download more reliably than the app and shows real error messages if something fails.
Reboot the router to clear the stuck state
Unplug the power cable from the BE800 and wait a full 60 seconds. Plug it back in and let it boot for about 90 seconds until the front LED matrix shows normal status icons.
That reboot frees up any storage held by the incomplete download and clears whatever process locked up during the failed attempt. Retry the update from the web UI after it's back.
Turn off auto-update temporarily
In the web UI, go to Advanced > System > Firmware Upgrade and then Auto Upgrade Settings. Toggle auto-update off for now. That prevents the router from starting its own update while you're trying to run a manual one.
Once the manual update succeeds, feel free to turn auto-update back on.
Download the firmware file directly from TP-Link
If the router can't pull the firmware from TP-Link's servers online, grab the file yourself. Go to tp-link.com/support/download, search for Archer BE800, and select the correct hardware version. You'll find the version number on a label on the bottom of the router, like V1 or V2.
In the web UI, go to Advanced > System > Firmware Upgrade, scroll to Manual Upgrade, click Browse, pick the downloaded .bin file, and click Upgrade. The process takes about five minutes; don't unplug the router during that time.
Make sure your WAN connection is stable
Before trying again, run a speed test and watch the WAN status icon on the front LED matrix. It should stay green the whole time. If the 10G WAN port keeps renegotiating or your modem is flaky, the firmware download will fail every time.
Fix the internet connection first. The BE800 needs a steady link to download such a large file without interruption.
Pause HomeShield while you update
HomeShield sometimes blocks the firmware update server as part of its normal threat scanning. In the Tether app, tap HomeShield and pause it for one hour. Then run the firmware update from either the app or the web UI during that window.
If the update works with HomeShield paused and fails when it's active, that's the cause. Re-enable HomeShield after the update finishes.
Match the hardware version exactly
The BE800 has shipped in different hardware versions, like V1 and V2. Installing a firmware file meant for the wrong revision can brick the router. Check the label on the bottom for the hardware version string and download the matching file from TP-Link's support page.
While you're at it, make sure the Tether app on your phone is updated too. An old app sometimes can't handle new firmware payloads.
Factory reset and start fresh
If none of the above works, factory reset the BE800. Hold the reset button on the back for 10 seconds until the front LED matrix blinks. Then set up the router from scratch using the Tether app and try the update again on a clean slate.
If the router has ever loaded a known-bad firmware release (the BE800 community has flagged a few problematic ones), standard recovery may not work. In that case, you'll need TP-Link's TFTP recovery procedure rather than retrying the normal upgrade. That's a separate process involving a direct Ethernet connection and a specific IP setup.
