@Kevin_Z Hello, I tried to make it work all night and finally found the solution. First of all, I do not have the access to the administration of main router. It is just so you know, I could not...

@Dog01 Bump this! TP-Link needs to know that we really need the explicit wds mode setting. Please! In my specific conditions, the inability to set the WDS mode explicitly makes my C6 useless after...