So here's the situation. We've got a central tower with two ePMP 1000 5.8 masters back to back on the same channel. With GPS sync they work like a charm. 150ish meg out to both locations.
We recieved these radios this summer with 2.3.4 installed, we upgraded to 2.4.3 and put them in the air. They worked fine from July~mid November. In mid November someone hit a telephone pole and snapped it somewhat near the tower. All of the houses in the area suffered a massive power surge(lights got very bright and then popped)and then went out, our tower included. All of our radios are behind battery backups, and a power conditioner.
However, the battery backup that powers the backhauls kicked completely off instead of switching to battery power when this happened. I ran out and got the generator online. The battery backup never came back so we replaced it and all seemed well.
While I was waiting for the power to come back I checked all of our backhauls. All were well except the two ePMP links. Quality and capacity were garbage. After doing more digging I found that they showed their active firmware was 2.3.4 and their inactive bank showed 2.4.3 and they had lost the ability to GPS sync. I tried rebooting with no luck, the came back on still showing 2.3.4 in the active bank. I then re-uploaded the 2.4.3 firmware and finally they were back to normal. All was well for a few weeks.
Now, one of the slave sides (at another tower location miles away) is randomly losing wireless and ethernet access for no apparent reason. The only thing to snap it out of it is to physically unplug it from the PSU and plug it back in. At which point it seems fine until it randomly goes MIA again (This has happened three times in three weeks). The cable has been tested and appears to be fine. We have also tried alternative power supplies to no avail.
I feel as though I'm grasping at straws and connecting far off dots but I'm at a bit of a loss.
Is 2.4.3 buggy? has anyone else had issues like this?