I seem to recall windows itself having a problem with tcp/ip connections and you had to change something in the registry to give it more.
Bill Foresman Matrosity Hosting www.matrosity.com 850.656.2644 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andy Schmidt Sent: Wednesday, August 29, 2007 2:19 AM To: [email protected] Subject: [IMail Forum] WAY OT: corrupt tcp/ip stack? Hi Sharon, It's interesting - I've been battling these symptoms on a Win 2003 server running Imail/Declude/Sniffer and nothing else. Mine have Broadcom NICs. I have the exact same machine (ordered together) running same operating system, but IIS - and it never has had any problem. Only the Imail machine seems to lose TCP/IP functions every few weeks (but one time actually a few times a day - then it quited down again). I'm suspecting that it's effected by either the type or volume of email which then triggers some software component to take a different code path, which in turn uncovers some shortcoming in the TCP/IP stack or the NIC driver. Any kind of TCP/IP "debug" action, such as disabling/enabling the device, certain command line tools - even running certain Broadcom connectivity tests will freeze altogether. Eventually only a power cycle will help. Each occurrence I have tried to follow one theory - and then eliminated it (such as restarting various services, checking for paged pool shortages, checking the number of TCP/IP offload sessions, upgrading BIOS, drivers, etc.) My next step will be a different NIC brand to see if a different driver will act differently... None of that will help you - just letting you know that you're not alone with respect to the "weirdness" and inconsistency of the occurrences. Best Regards, Andy To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
