What the title says. There are no radars around me. Trying to set the EX230v to channels does nothing. I know after changing this setting it takes a bit to activate the channel, but these channels never activate, not even after 30 minutes. The router tries to activate them for a very brief period, you can see the network for a split second, then it goes down. I think this is a firmware bug. Other DFS channels are working fine.