I have a ClickOnce application that is published to an IIS web server and the install page and installation process has been working perfectly for years.
One of my new users has recently tried to go to our installation page and he is now getting the following error message:
Error Code: 403 Forbidden. The server denied the specified Uniform Resource Locator (URL). Contact the server administrator. (12202)
I've tried to Google this specific message, yet everything I can find regarding fixing it involves changing settings on my server or running hotfixes. However, this isn't/shouldn't be a problem with my server because the page has loaded for years and both I can access this site, as well as other user's who work at and are connected to the same network and facility that this gentleman is located at.
What tips can I provide to him that could help him troubleshoot this problem?
FYI, this user that I am mentioning is not part of the same network that I am in. He works for another company and is trying to install an application that we provide as a service.
What is unique about this user is he works in the same building, on the same network with the same firewall software installed on his PC as a few other users. As a test, he's managed to get a couple of them to load my web page, and they are not having any trouble. So, this seems to be a specific problem with his PC.
Since I'm not an admin on their network, I can't do any thing to fix this problem. However, I would like to at least help steer him in the right direction.
Could this be a problem with a server some where between his PC and our Server here? Possibly his request is bouncing through some gateway that just doesn't like my address? I'll be honest, I have a moderate understanding of these type of configurations. Our ISA server is managed by another IT group and I don't even have access to the machine. I do know, however, that they haven't changed anything on the server for at least a couple years.