I have an issue when switching to AP mode on my Archer AX55. I am connected with an Ethernet cable and in the default wireless mode it works fine, albeit with a different network than my main one. So the goal is to "extend" my main WiFi connection via wire. 
 

When switching to AP mode, the Archer reboots. But then signals there is no internet connection. The internet LED is also orange. 
 

Am I missing a step? All the TP-link guides I followed don't mention any. It should be fairly plug and play, except for me. 😅

The Archer is up to date with the latest firmware as of 25th May 2024.