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I've got an instance of IIS 7.5 running on my Windows 7 dev machine that runs a website that is bound to both port 8080 and port 8088. For some reason the site works fine when accessed from 8088, but always sends a 503 when accessed from 8080. Here's what I know:

  • There are no processes using 8080, other that IIS (used TCPView to check that)
  • There are no firewall rules affecting either port
  • Event Viewer, IIS logs, and IIS failed request traces are clean
  • A restart of the machine doesn't fix anything
  • It's failing before it gets to any special handling of files (an HTML file and an ASPX file produce the same error, but both work on 8088)

I've done everything I can think of short of uninstalling/reinstalling IIS. Any ideas?

Update: A uninstall/reinstall didn't fix the problem either. I'm thinking this must be something wrong with my Windows install or something....

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Web proxy/filter? 8080 would be the port it's probably using, and they usually don't play well with others. (At least the ones I've had the misfortune of administering.) – HopelessN00b Jul 23 '12 at 17:45
Can't find anything. That would show up in TCPView, wouldn't it? – Eric Andres Jul 23 '12 at 17:46
BTW, this is all happening on localhost. I'm not doing anything external to the machine. – Eric Andres Jul 23 '12 at 17:48
Well, that's not it then. – HopelessN00b Jul 23 '12 at 18:32
so stop iis then surf localhost:8080 what happens, I know that you say its not used but... – tony roth Jul 23 '12 at 20:49
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