We have an older B380 running 6.3.4. The unit began not passing data from LAN to WAN at random times throughout the day. When the lock up occurred I was always able to log in externally through the WAN (I am not at the physical location). Internal users were always able to ping the device and get a reply on the LAN side. The users were not sophisticated enough to actually try to log into the device on the LAN side.
I replaced the unit with a Balance One that we already had. The B1 is running 8.0 firmware. I am having similar problems but the B1 actually reboots itself when this happens.
The lock up or reboot never occurs outside of business hours. That made me wonder about other equipment in the building causing a power drop out. I installed a battery back up behind the B1. No change, the problem still happens, usually several times a day during business hours.
Today we tried running 110v power to a different circuit in the building. Same problem, the B1 still reboots on its own even though it is on a battery backup. If you completely remove power to the battery, the B1 continues to run so the battery back up seems to be doing its job.
I don’t think there is anything wrong with either of the routers. Something on the LAN side is causing the B380 to stop passing data, and the B1 to completely reboot. What kind of scenario could cause that? I’m stumped on where else to look for problems.