on 9-9-2008 11:40 AM Joseph L. Casale spake the following: >> Not a laptop it is a server with dual nics mtu set at 1500, 1 nic directly to the cable modem the other to my lan. > > MTU has nothing to do with laptops, it has to do with TCP/IP. > Aside from a previous posters duplex setting (good catch on his part) its > possible that MTU is an issue. Some ISP's do some silly stuff. You > *are* going into a cable modem (which I read as accessing the internet > through some means other than a high-end fiber/etc connection where oddities > wouldn't likely exist:>) > > jlc And many cable modems, especially if it is a few years old, are half-duplex. Autodetect doesn't always work on them, and they will drop packets enough to slow them down a lot. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!! -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 250 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20080909/cccbde6d/attachment-0005.sig>