I've got several of these in a wireless backhaul configuration using NV2 and wds. I noticed today that about 4 or them were running at 250mhz instead of 400mhz, so I changed them to 400 and rebooted. One of them never came back after the reboot. Took a power cycle to get it going. 2 hours later it has locked up again. I havent driven out there yet because our backup link is up so we'll work on it in the morning. But I noticed that 2 others that were changed to 400mhz kernal paniced and rebooted within an hour and are now showing no firmware.

Is there a known issue with these boards? Should I be running them at a slower clock speed? We are pushing 40-75 megs through these links. I have another one that pushes 100 megs that has been losing firmware periodically as well. They still function just fine and you can reload firmware and they are ok for a while.

Any ideas? They are all using 2.38 firmware with ROS 5.14. These are all RB711G 5HnD

set cpu to 400Mhz, then upgrade ROS to 5.22 and then firmware to 3.0

Updating firmware and software did not help. Router was rebooting about every minute. The only way I could resolve it was to set it back to 250mhz which is ok for that particular link, but Id like to be able to run it faster. Any other ideas?

/system routerboard settings set force-backup-booter=no
/system routerboard upgrade

then set cpu to 400Mhz

just buy another ones, they are defective. I set them to 250mhz and installed at clients and bought new for ptp links. You are not the only one.