I have a Node project running on a Windows server using IISNode on a Windows virtual machine.
Everything worked fine up until a few days ago when the VM underwent a Windows update, and now the site isn't serving any files.
When I start the server, there is no indication of anything being wrong, but when I go to the URL, I get the message:
www.mydomain.com didn't send any data
ERR_EMPTY_RESPONSE
Initially, when I was checking all the settings, I noticed that when I clicked 'Test Settings' under basic settings, that there was an authorization failure saying it cannot verify access to the source code directory.
But when I changed it to connect as specific user instead of application user, the error went away but the above issue was unchanged.
This makes me think it could be a permissions issue, but I've granted permission to the App Pool, IIS_IUSRS and IUSR, so I could be wrong.
I've tried multiple solutions on StackOverflow, including this highly rated one with no luck.
Any help would be appreciated.
Annoyingly, I found the answer a few hours after placing the bounty.
The problem was that it didn't have a static IP address, so when the VM was updated it was on DHCP and so was allocated a new IP, hence the website stopped working.