I have the same problem... I have added Ip range for direct access but I always get the same error/response Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202)
hi dear friend first of all , check that if you have defined an EXCEPTION website in your access rule & have used both HTTP & HTTPS then you must define 2 Access rule ,one for allowing HTTP with EXCEPTION website & another one which allows HTTPS only without EXCEPTION ,cause HTTPS does not use host headers so if you want to Give Exception for HTTPS you must define Computer IPs instead of website names .
Hello Dears This problem may occur if a site and content rule in ISA Server is configured to only allow certain content groups. A Content-type header does not have to be specified in certain HTTP responses, such as in HTTP responses that must not include a message-body in the response. For example, "304 Not Modified" responses must not include a message-body. If ISA Server is configured to only allow certain content groups, it denies any response that does not have a Content-type header, unless the requested file name extension is allowed in the content group. This configuration causes certain responses, such as "304 Not Modified," to be denied even though these responses must not contain a message-body and therefore do not have to specify a Content-type header.
i have the same problem wish ISA 2006. the site maybe contains exe embeded and i can't access it though i made a special rule for that site to allow all protocols and all extensions and content types. what can i do more????!!!!
Hello I have ISA2006 and web filter (smartfilter) and any URL that is not allowed the smart filter page should appeare to the users but I get the same error mess. Error Code: 502 Proxy Error. The ISA Server denied the specified Uniform Resource Locator (URL). (12202)
The tip about the computer set as the IP address of the site resolved a similar issue for me. It was it was turning to https from http and got the 502/12202 error message. I had a deny group in place for a group of people with the exceptions defined as domain and url sets but it wouldn't work. As soon as I added a computer set with the IP's of the sites in question to both my deny and my anonymous access rules, it worked.