The Cisco business gateway will reboot all by itself. I have to power it off and back on to get it to come back up or it won't come back online. I don't think this thing's supposed to do that. Any ideas? Do I need to get it replaced?
Can you post a screen shot of the downstream/upstream signal levels, so we can analyze? Poor signal can cause the modem to reboot.
If not that, then I would suspect power problems either with the power adapter or your power source.