Hi all,

I'm currently having some issues with the following hardware chain:

Archer GX90 (HW Rev 1.0, FW 1.2.3 Build 20250603 rel.66228(4555) > TL-SG105 > RE700X (HW Rev 2.0, FW 1.2.0 Build 20250808 Rel. 36206)

Since the update enabling Ethernet backhaul landed for the RE700X I thought it would be better to stop sapping wireless bandwidth unnecessarily. The GX90 is located at the front of the house, with the switch at the rear via a single cable. The switch has a Mac Mini used as a TM backup destination and a workstation also attached. The plan was to attach the RE700X since it's located nearby and give a proper connection at the rear of the house and garden.

I found however connecting via Ethernet actually made things worse.

• The GX90 showed it as a wired device but it would disconnect and reconnect every minute or so.
• Wireless devices such as security cameras and my phone showed as wired devices.
• On the OneMesh settings on both devices it still showed as wirelessly connected, though signal strength was gone on the GX90.
• The Mac Mini on the same switch could not use the internet wired. It showed the GX90 IP and that everything was fine, but no actual connection was possible.
• The GX90 also showed the Mac Mini as wired but it too would disconnect and reconnect every minute or so.
• The Tether app showed the RE700X as connected, then no internet connection, then connected, mirroring the disconnect pattern.

I would like to query if this is a known issue with certain or all switches, if a managed switch would solve the problem (easy swap over, if caused by loops or such) OR if I need to wait for a firmware update to fix.

I've put the RE700X back as a One/EasyMesh relay unit fow now.

Any help would be appreciated!

Thanks