I have a network consisting of a thick-net backbone (with AUI connections) connecting 6 sub-nets. I used to be able to do a remote dump from each system in each sub-net to one of my servers that has two 5GB exa-byte tape drives. Recently, I tried to do a remote dump from clients on one of my sub-nets to this server and got a message stating that the dump was aborted due to a broken pipe. No new hardware or software has been added to any of my machines and my back-up routine has worked perfectly for over 10 years. I am able to do a remote dump from the clients on the sub-net to the server of the sub-net and I can do a remote dump from the server on the sub-net to my backup server as I always was able to. What could be wrong and how do I fix it?