@ShaChuan It's not entirely clear what you want to use policy routing for. Can you explain what you're going to route and how you've done it, preferably with some screenshots.

@peterdeg go to network config and site settings.

@Axicee I doubt if you can disable DFS channels on ER245, if you had you would have to go into each individual access point as well, so my suggestion is to set all the access points manually. 100...

@Axicee The access point must also support this function, for example if you have EAP225-Outdoor or EAP225 then you will not be able to select channels. If the access point does not support this...

@Chrisp250 If there is only one PC with problems, try deleting the PC object from the Omada console.

@teve You probably have to go back many years. And you have to go down to omada version 3.x, try this version. Release note OC200 firmware