New R600 Not Joining the unleashed AP

[ronnet_patino]

Have a unleashed group of 5 AP working for one year today added 2, first one no problem the second one doesnt join the group I can ping the AP from the admin web page, approved the new AP but keeps saying it is disconnected, If I go to http://ip of the new AP, the stand along page loads, all the APs including the new one have the same Firmware version.

[ronnet_patino]

Before I posted on the forum I already tried, reseting it to default uploading the same firmware as the others AP no sucess.

The only thing I havent tried is upgrading all the others AP, which I dont feel confortable as I can have a new problem.

Really dont know what else to do, any way to do a Debug see what can be the issue?

[ronnet_patino]

This the AP has the same firmware on the same subnet, same model as the other onew.