How to make Fiddler listen to all IPs

Question

I'm having trouble with one server sending data to another server, so I thought: let's debug it. I can setup a proxy, so why not use Fiddler? So I made the server use fiddler running on my computer, by setting the host to my computer's IP (192.168.2.111) and the port to 8888.

The problem is that fiddler is listening to localhost:8888 or 127.0.0.1:8888. Therefore, if the request is to 192.168.2.111:8888, the connection is actively refused.

Can I make fiddler listen to ALL IPs?

Thanks!

Answer 1

The proper fix is to simply click "Allow remote computers to connect" checkbox inside Tools / Fiddler Options.

Answer 2

It took a lot of "Reflectoring" and I should have looked in the registry in the first place, but the solution is:

Change HKCU\Software\Microsoft\Fiddler2\AllowRemote to "True".