I had a Force 200 5Ghz in a remote location (as AP and in bridge mode), when I upgraded from 4.4.3 version to 4.5.6 version, the equipment just got lost at the last phase, when rebooting. I have not tried to upgrade from a different version.
I have the idea that it do reboots, but when I try to enter the username and password at the main login page, it seems to halt. But maybe the browser cache showed me the login main page (once).
I replaced the Force 200 with an ePMP 1000 with GPS, and repeated the first upgrade to 4.4.3 version, and configured; two days later I upgraded it to 4.5.6 version, and I lost the radio too. I will have go to the remote location again (at a hill of 4240m high, 2hrs from here, at 40km). Strange thing: the ePMP 1000 with GPS has two firmware banks, the alternate (backup) bank did not worked.
I do remember to be playing with the bandwidth of this new wireless link (from 5Mhz up to 40MHz) before the upgrade, in both “lost” cases.
By the other hand, I had upgraded some Force 300’s, other Force 200’s, other ePMP 1000 connectorized that are in production, with no problem issues, but I did not played with the bandwidth configuration beforre the upgrade.
In my lab, I had to use the “pressing more than 10 seconds reset button switch” method to reset the Force 200, to recover the Force 200 to defaults. Other methods did not worked: First I tried looking for IP’s like 192.168.0.2 or 169.254.1.1 or in the segment it was working or using a DHCP server at the ethernet port and looking for the IP address that could obtain, then I tested disconecting an connecting the POE cable to reset to factory defaults.
Other thing that I have realized is that the LEDs at the RJ45 female port of the Force 200, do not work, but this last thing maybe is a common issue in the Force 200. After the recovery of the Force 200, this two leds did not worked. I will check on a new Force 200 just in case.
I am thinking of any idea to remotely try to recover the ePMP 1000 with GPS (searching 169.254.1.1).
I will inform you.