Technical Support

Diablo II Networking Site - http://www.idleminds.org/~dirk/lan/
Information on setting up a LAN. FAQs, how to play behind a proxy server, and TCP/IP troubleshooting.

Diabloii.net - Technical Support - http://www.diabloii.net/generalinf/technical.shtml
User posted solutions to problems.

Open Tech Support Forums - Diablo II - http://www.opentechsupport.net/forums/forumdisplay.php?forumid=49
Provides a moderated technical support forum with FAQ's and searchable post archives.