hi,when the network was down, can you ping both the 2900 LAN gateway IP or the WAN IP? no, the ping not answerhave you checked layer 1, i.e. power source is stable and RJ45 cables are tightly inserted? yes, it´s is fine
Hi,1. right now traffic pass through the router to its destination? no2. Do you have access / ability to talk with someone who has access to the next-hop of that router from its upstream direction? If so, you may want to ask him if he sees arp / mac ...
