I have a 3750 connected to our providors 3400. The connection had some issues this week, where I stopped receiving input packets, although the link remained in up/up state. Bouncing the interface did not bring it back up. However, changing the negotiation to auto/auto did. We then changed it back to 100/Full, since it has been operating that way for months.
What should the proper setting be for a 3750 connected to a 3400? Would auto work better than 100/Full?