You could check the following things to see if everything is working correctly:
- In IIS Manager, look at the app-pool and see if the pool of this application is running
- Also in IIS Manager, look at the web, is it also running?
- Next, look into the SharePoint 2010 Central Administration if you got a working site-collection on your web (here a explanation: http://technet.microsoft.com/en-us/library/cc262261.aspx[^])
If everything seems ok, you could try to open the ULS log (at 14 hive folder \logs) and search for "unexpected" (or scroll through the logfile and look if you see something abnormal). Also you could check the EventLog to see if you have any SharePoint errors in there.
You can also try to restart the server (or do at least a
and restart all SharePoint Services).
Hope this helps.
Best regards and have a nice day,