Multiple Certificate on MS ISA Server
add the AllowPerServercertificate registry entry, follow these steps:
1.
Click Start, click Run, type regedit in the Open box, and then click OK.
2.
Locate and then click the following registry subkey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fpc\w3proxy
3.
On the Edit menu, point to New, and then click DWORD Value.
4.
Type AllowPerServercertificate, and then press ENTER.
5.
Right-click AllowPerServercertificate, and then click Modify
6.
Type 1 in the Value data box, and then click OK.
7.
Quit Registry Editor.
8.
After you add the AllowPerServercertificate Registry entry, restart the Firewall service.