@Riley_S Thank you for your answer. Are you in the US, using a US model router? I am in Canada. It is possible that the prompt is being thrown because you are trying to use DFS channels for the 5GHz,...

I've used the router as main router for several years and both 2.4Ghz and 5Ghz were working great. Now I've switched it to WDS bridged mode (5Ghz). It works for several hours (between 3 and 12 so...