I have two sites set up in IIS on a remote machine RM; one on regular port 80, and the other on port 5773.

From my local machine LM, I can access the site on 80, but I cannot access the one on 5773; I get a status code of 502 and an error code of 10060 (A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) when I try to do this.

I can access the 5773 site via IIS when I am logged into RM (i.e. by right clicking on a page on the site and going 'Browse'). I can also access pages on the 5773 site via a browser, again when I am logged into RM. I just can't do the same via a browser when I am logged into LM.

I have ensured that port 5773 is open for outgoing traffic on LM.

Could the problem be that I also need to ensure that port 5773 is open for inbound traffic on RM?