I have a IPKII where the customer recently upgraded to a gigabit switch on their network and now we are unable to get access to the phone system on the LAN. If I do a constant ping, maybe 1 out of 20 will get a response back. If i plug into the CPU with a crossover I can get into the system without issue. If I plug the system into a small 5 port switch with just my notebook attached, it works just fine. I don't believe this is an IP conflict on the network, but I am running out of ideas.