I have a a smartbox with an Adtran card in it for our T-1 circuit. A single cat-5 cable comes out of the card and plugs directly into a Cisco 1700 Router’s WIC 0 card. Naturally the green link light comes on. For the past few days, the lights on the Adtran have been going nuts, blinking in alternating patterns, sometimes two stay on, sometimes they all blink off and then come back on repeating the same thing. And of course the WIC 0 light goes off and the whole network is dead.
I’ve had technicians look at it but they can never seem to determine the reason why.
Has anyone ever come across something like this? Is it the circuit’s fault or is it my Cisco router that’s causing the Adtran to freak out? This phenomenon has only occurred once before and stopped for months until now. So it’s not a regular event. Whatever the case may be it is driving me up the wall.