I just saw an article posted on this forum to disable DFS on a Fios router . I have done that now and changed the extender to connect back to the fios over 5gz - will wait to see how this goes

The extender becomes unresponsive. The led still is lit up. The webinterface will not open, cannot ping it. There is barely 3 clients do regular office work with audio video. The setup Configured as...