Your ASUS ZenWiFi BT10 is dropping connection every few minutes. Sometimes the whole mesh goes offline for a few seconds. Sometimes only one device disconnects while the others stay connected. Sometimes one of the nodes shows as offline in the ASUS Router app despite being plugged in. You want it fixed, not diagnosed to death.
Start with the simplest thing that solves most drop issues: restart the modem and the main BT10 node in the right order. Unplug both. Wait a full 60 seconds. Plug the modem in first and wait until its lights settle, usually about two minutes. Then plug the BT10 main node back in. Give it another 90 seconds for the satellites to rejoin. This clears any cached routing state that causes cyclical drops.
If that didn't stick, here's what else to try.
Check AiMesh Firmware Versions
The ZenWiFi BT10 supports AiMesh, which means you can add other ASUS routers as nodes. But AiMesh is notoriously finicky when the firmware versions across nodes don't match. If your main BT10 is on one version and an older ASUS router you added as a satellite is on another, the mesh can drop connections as the nodes argue over which one is in charge.
Open the ASUS Router app and go to Settings > Firmware Update. Check every node listed. Update any that are behind. You can also use a browser to visit router.asus.com and check under Administration > Firmware Update.
Fix a Device That Keeps Hopping Between Bands
The BT10 is a tri-band Wi-Fi 7 mesh, and by default it uses a single SSID for all three bands. Most devices handle this fine, but some older gadgets repeatedly hop between 2.4 GHz and 5 GHz and drop for a second each time they switch. It feels like the connection is dying, but it's just the device being indecisive.
In the ASUS Router app, tap Settings > Wireless and look for Smart Connect (that's ASUS's name for the unified SSID feature). Turn it off. This splits the network into separate SSIDs like "MyWiFi_2G" and "MyWiFi_5G." Connect the problem device to the 5 GHz band and leave it there. It won't hop anymore.
Disable IPv6 Temporarily
Some ISPs have flaky IPv6 implementations, and when the BT10 tries to negotiate a v6 prefix over and over, the WAN connection can flap every few minutes. This is one of those problems that looks like a mesh issue but is actually at the modem level.
Log into router.asus.com with a browser. Go to Advanced Settings > IPv6 and set the connection type to Disabled. Apply the change. If drops stop within an hour, leave IPv6 off or call your ISP to complain. If nothing changes, you can re-enable it.
Confirm It's on WPA2/WPA3 Transitional Mode
The BT10 ships with WPA2/WPA3 transitional as the default, which is the right setting for most homes. But if you changed the security mode to WPA3-only, older devices will connect, drop, reconnect, and drop again in a loop. That's because WPA3-only requires hardware support that many devices from 2019 or earlier simply don't have.
In the ASUS Router app or at router.asus.com under Wireless > General, check the security option. Make sure it's set to WPA2-Personal / WPA3-Personal (that's the transitional mode label in ASUS's UI). Save and reboot.
Move Nodes Out of Enclosed Spaces
The BT10 has active cooling vents, but if a node is inside a cabinet, behind a TV, or on a shelf with other electronics jammed against it, heat can build up. When the radios get too hot, the system throttles performance and can drop connections to cool down. You won't see an error message for this.
If any node feels warm to the touch for more than a few seconds, move it to an open spot with at least 6 inches of clearance on all sides. Give it 24 hours to see if the drops stop.
Turn Off Multi-Link Operation as a Diagnostic
Multi-Link Operation (MLO) is a Wi-Fi 7 feature that lets a device connect over two bands at once for lower latency. It sounds great, but not every client handles it well. If a compatible device is connected via MLO and dropping every few minutes, MLO might be the culprit. The BT10 needs firmware 3.0.0.4.388 or later for MLO, but even on the right version, client compatibility varies.
In the ASUS Router app under Wireless > MLO, turn MLO off temporarily. Test the problematic device for a day. If drops stop, leave MLO off until the client vendor or ASUS releases a fix. You don't lose core Wi-Fi 7 speed; you just lose the multi-link benefit.
Check for Wired Backhaul Conflicts
If you're using Ethernet backhaul between BT10 nodes and running through a managed switch, two features can cause cyclical disconnects: Loop Protection and RSTP (Rapid Spanning Tree Protocol). Both can flap the port the BT10 is on when the mesh sends its own management traffic.
On the switch, disable Loop Protection and set RSTP to an edge port (or disable it entirely) on the ports connected to the BT10 nodes. If you can't change those settings, try connecting the backhaul through a simple unmanaged switch instead. That often resolves it.
Pause AiProtection to Test
AiProtection Pro is free for life on the BT10, which is great, but it can occasionally flag legitimate traffic as a threat and block it. When that happens, it looks like a disconnect for the affected device. The ASUS Router app won't always notify you about these blocks.
In the app, go to AiProtection and pause the feature for a few hours. If the drops stop during that window, you know AiProtection is the cause. Re-enable it and check the logs under Alerts & Events to see what was being blocked. You can sometimes whitelist the affected service.
Factory Reset the Main Node
If you've tried everything and the BT10 is still dropping connections, a factory reset often clears out whatever wonky config or bug is stuck in memory. On the back of the main node, press and hold the reset button for 10 seconds. The node will reboot with all settings wiped. Set it up again from scratch through the ASUS Router app.
This is a full reset, so you'll lose your SSID, passwords, and any custom settings. If you have a complex setup, take a screenshot of your config in the app first. Plan about 30 minutes for the reset, setup, and satellite re-pairing.
