The current page that displays LSP compatibilty issues for version 10 lists ISA and TMG as "conditional" and "investigation continuing" still. Has anyone sucessfully (and stabily) been able to use the Web Protection feature in version 10 with the ISA or TMG Firewall Clients installed? I've been hesitating rolling out version 10 to our almost 500 computers in hopes of getting some more clear direction. Thanks!
Welp, I can safely say - DO NOT INSTALL SOPHOS 10 if you have the Microsoft TMG or ISA Firewall Clients. I pushed out v10 to our ~500 machines and part of them are now screwed up. Some of them can't even get onto the network properly, let alone the internet. If I remove either Sophos or the ISA/TMG Client, everything starts working again. We're not even using the Web Protection or Web Control aspects of the software (they are turned off for everyone).
WHEW! I think I finally found a workaround. The issue is that even though 'Web Protection' was disabled, the 'Download Scanning' option right below it was still set to 'As on-access scanning', and that kept the LSP loaded which conflicts with ISA/TMG. Changing the Download Scanning to OFF, letting the computer apply the change and then rebooting unloads the LSP and stops the conflict.
i upgrade my sophos endpoint, and i have some problemas it TMG 2010... the Sophos aren't know why block the autentication to TMG and dont leave nothing exit to internet... i have web protiction disable... i use only Antivirus protection...
According to their article here, they've officially declared the ISA/TMG client as Incompatible and starting with version 10.0.6 (not sure when that will be released), it will automatically disable the Web LSP when it's being installed if those are detected. Hopefully when they push out 10.0.6 your issues will go away.
