Our main office connects to a small remote office using a 10Meg EPON. Our three primary business applications use three different database engines. We are having a serious lag problem with two of the “older” applications. The newer application doesn’t seem to have a problem. In a “sterile” test environment, I throttle down workstation NICs to better emulate the EPON (7.4Meg) and I have no problems. When I do a packet capture on our production network, I can see the two datbases I’m having problems with are using (1) UDP and (2) SMB, NBT over TCP/IP respectively. The application I’m not having problems with use strictly TCP/IP. I have been assured by the company that provides our EPON that it is “transparent” and Iperf confirms a 9.7 Meg connection (TCP). Our network topology is basically 10/100 SWITCH <--> ONU <--> provider <--> ONU <--> Gigabit SWITCH. Before I get our EPON provider’s engineers on this one, I was hoping for some other suggestions. Any help would be greatly appreciated!