You're resetting a TP-Link Archer BE800. Maybe it's acting flaky after a recent firmware update. Maybe you're handing it off to someone else and need a clean slate. Or maybe you just want to start fresh with your Wi-Fi 7 network. Whatever the reason, there are a few ways to do this and they serve different purposes.
The quick version: most quirks resolve with a simple power cycle (unplug for 30 seconds). If you need a full factory reset, hold the reset button on the back for 10 seconds until the front LED matrix flashes and the router restarts. That wipes everything back to the sticker settings.
Here's what each option actually does and when to use them.
Power Cycle Before You Panic
The Archer BE800 is a tri-band Wi-Fi 7 router pushing BE19000 speeds with 2x 10GbE ports. It's a lot of hardware. Sometimes the glitch is just memory build-up from extended uptime.
Unplug the power adapter from the back of the router. Wait 30 seconds. Plug it back in. Watch the front LED matrix go through its boot animation, then stabilize to show the time and date or your custom display. Total downtime is under two minutes.
This clears temporary routing state and DHCP lease info. Do this before you try anything more destructive. It fixes more than people expect.
Use the Tether App to Trigger a Reboot
If you can reach the Tether app (iOS 13+ or Android 9+), a remote reboot is even easier. Open the app, tap your Archer BE800, tap Devices or the router name, and look for the reboot option under Advanced or System.
The router does its normal restart cycle and comes back with all your settings intact. No cables to unplug, no crawling behind furniture.
One thing worth knowing: the Tether app and the web UI (at tplinkwifi.net) occasionally show different real-time stats. This is a known quirk with this model. If one interface shows something weird, check the other before assuming there's a real issue.
Do the Full Factory Reset with the Button
Need a true clean start? Grab a paperclip. On the back of the Archer BE800, next to the ports, is a recessed reset button. Press and hold it for about 10 seconds. The front LED matrix will flash, the router will reboot, and when it comes back up it'll be broadcasting its default SSID from the sticker on the bottom.
This wipes everything: wireless settings, port forwarding, VLAN config, custom DNS, the whole thing. You're starting from factory defaults. Plan about 15 minutes to get everything reconfigured.
Important distinction: the Archer BE800 has a single reset button and a single behavior here. There's no "soft reset" versus "hard reset" like some mesh systems use. Hold it for 10 seconds and the factory default process runs. That's it.
Reset via the Tether App
You can also trigger a factory reset remotely through the Tether app. Navigate to your router's management page, tap System or the three dots menu, and look for Factory Reset or Reset.
The app will confirm your choice because this is a one-way door. Once you tap yes, the router reboots with factory defaults. You'll need to reconnect the app and set everything up fresh. This is useful if the router is mounted high or in a tough spot to reach physically.
Same result as the button, just done from your phone.
Set Up the Archer BE800 from Scratch
After a factory reset, the router boots up broadcasting an open network with the default SSID printed on the bottom. Connect to it from your phone or computer.
You'll land on the setup page at tplinkwifi.net or in the Tether app. The guided wizard walks you through: setting your admin password (do not skip this), choosing your network name and password, and connecting to your modem. The 10GbE WAN ports are designed for multi-gig fiber plans, so if you have a fiber connection above 1 Gbps, make sure you're plugged into one of the 10G ports for full speed.
The Archer BE800 ships with WPA2/WPA3 transitional mode by default. During setup you can switch to WPA3-only if your devices support it, but leave it on mixed mode if you have older gear. Don't panic if an older laptop won't connect right after reset, it's probably the transitional security playing nice with your old device's settings.
Remove the Router from Your TP-Link Cloud Account
If you're selling or giving away the Archer BE800, the factory reset is only half the job. The router stays linked to your TP-Link Cloud ID until you manually remove it.
Log into the Tether app, tap the router, and look for the cloud account settings or device management section. There's usually a Remove or Unbind option. Do this before you hand it off so the new owner can claim it on their own account without calling support.
If you've already factory reset it and it shows offline, you can still remove it from the cloud account in the app under Cloud or Account settings. The Tether app handles this on their servers, not locally on the router.
Configure the Reset from the Web UI
If you don't have the app handy, the web interface at tplinkwifi.net gives you the same controls. Log in with your admin credentials, navigate to System Tools or Administration, and find the factory reset option. One click and it's done.
The web UI also shows firmware version and can trigger manual updates. The Archer BE800 auto-updates by default, but if you've had it offline for a while, give it a few minutes after reset to fetch the latest firmware before you start making major config changes. The LED matrix will show you what it's up to.
What the Front LED Matrix Tells You During Resets
The Archer BE800 has a unique front-panel LED matrix display that's one of its signature features. During a normal boot, it lights up with the TP-Link logo and then transitions to showing the time, date, or a custom pattern you've set.
During a factory reset, the LED matrix flashes and then goes through its full boot sequence. If the display goes dark for more than two minutes and doesn't come back, you may have tripped the power adapter. Just unplug and retry. The LED matrix itself consumes a tiny bit of extra power, so if you're running the router on a UPS during a power outage, you might notice slightly shorter battery runtime than you'd expect from a router without the display.
After the reset completes, you'll have to set the LED display preferences again in the Tether app or web UI. It defaults to the time and date display after a factory reset.
