We have an AP that is surrounded by apartments with tons of wireless networks. We had an issue solved by support where our 510 APs were not using DFS because they were not detecting the Country. This was fixed by manually scanning, but the APs still aren't using DFS for the most part. They have at times so they are capable of using those channels, it's just that they typically don't use them even though they are lowest cost. Is there a problem here? Are the Costs supposed to be negative? On our 410 APs 0 is the lowest. I can reboot this AP and it still won't go to DFS. Any help is appreciated!
