I'm using point 2 point RB100 base link. One of remote site link's ether1 port data tx rx showing 0 but that time link was up and signal quality is as usual.. When I restart my Remote ODU then data is passing through ether1 port. Some remote side ODU is showing hang and it's working after power off-On. I've changed ODU, POE, Adapter, Connector, POE to Cisco 800 series router's Internet port STP cable.

Another point to point 50 KM link some times goes down during night and showing above problem. plz suggest me about my step. i'm waiting for your reply.