Unable to scan Vista computers unless I disable the firewall

Unable to scan Vista computers unless I disable the firewall

I can only scan Vista computers if I disable the firewall. I searched the forums but couldn't find a solution that pertained to me. Suggestions?

For the older versions of ServiceDesk and Windows XP there was a firewall exception that had to be created and that worked great for XP. It doesn't work for Vista though. Is there something similar?

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