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TCP/IP fails on SBS after Windows Update IPSEC Blocked

Have had this on several SBS 2003 servers where after a Windows update the server can’t ping anything, can’t ping the server. In the event log you see IPSEC Blocked. What you have to do is edit the registry. Here is the Windows article.

Basically add the following registry items:

IPSEC-ADDPORTS

 

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