1

I have an ASP.NET project (VS2008 on Windows 7 with either webforms, MVC1, or MVC2 -- all the same result for me) which is just the File->New hello world web project. It's using the default ASP.NET development server, and when I start the server with F5, the browser never connects and I get a timeout. I tried to debug this by telnetting to the development server's port while it was running, and I got the same result:

C:\Users\farmercs>telnet localhost 54752
Connecting To localhost...Could not open connection to the host, on port 54752:
Connect failed

I can see in the system tray that the server thinks it's running, and a netstat -a -n command shows that there is indeed an active TCP listener on that port.

This worked in the not-too-distant past, and I could work on web projects using the development server. One thing that has changed since then was that I installed the Microsoft Loopback Adapter to accommodate a local development Oracle installation. I'm not sure this is the problem, but it seems a likely culprit.

I also tried to hit the port using the server name itself (http://mycomputername:54752) but with the same result.

So, what could be blocking me from connecting? And if it's the loopback, then what is a good way for me to retain my ability to connect to my development Oracle server while still being able to use the ASP.NET development server?

Improve this question
6
  • just curious. Same behavior for a non-mvc project? Commented Apr 5, 2010 at 21:26
  • Yes. Webforms, too. Even requesting a static file like a css page gives the same result. Commented Apr 5, 2010 at 21:28
  • Can you hit it if you try http://<machinename>:54752 instead of localhost? Commented Apr 5, 2010 at 21:30
  • @AaronS: Thanks for the suggestion. I edited my question to reflect the result. No luck. Commented Apr 5, 2010 at 21:43
  • Put your least used environment in a VM. Commented Apr 5, 2010 at 21:53

1 Answer 1

Reset to default
3

have you checked your host file?

%SystemRoot%\windows\system32\drivers\etc\host

look if there is any redirection of localhost or 127.0.0.1 to somewhere else rather than your pc

Improve this answer
Sign up to request clarification or add additional context in comments.

1 Comment

I'm embarrassed to say, but this was it. There was an entry to map localhost to 192.168.1.2. I just changed my VS project to use 127.0.0.1 instead of localhost, and it seems to work fine and the debugger attaches ok too. I am reluctant to change that hosts entry, since I have lots of configured oracle stuff now that I think would get upset if localhost changed its definition. Thanks for the help!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.