@TP_LINK Units currently positioned at X, unit in the Kitchen has been tried at position Y but no difference. No red lights but lower speeds in Living Room.

@TP-Link Thank you for your quick response. I have tried running Network Optimization but it made no difference. My main X20-DSL (Study) is at the very front of the house, first X20 in middle of...

Is there a beta firmware available to allow this in the same way as the beta firmware that has just been posted for the M5?