My boss had several "internal error has occurred" messages this morning while accessing his office client via RWW. He didn't have the "public computer" checkbox checked and since he's working from home he hasn't been leaving his system idle for 60 minutes or more where it would timeout. I saw another question where Jeff/TechSoEasy mentioned ensuring no disparity in MTU settings between remote and local routers. My PIX 506e firewall and Netopia DSL routers are configured for 1500. The remote router (a LinkSys) had no value so I asked it be set to 1500. Things are working for now so I'll keep an eye on it. This situation, however, got me thinking that I have generally taken the MTU setting for granted, only having ensured over the years that it was "large enough." I think for the PIX and the few LinkSys routers I myself have configured over the years the default was 1500. Can the experts please advise (or point to an article) as to whether there is an optimum MTU setting for hardware along the remote data path to the SBS server? Would this setting apply to IE (and anything else, FTP clients?) as well? Thanks in advance for the illumination.