This is really helpful, thank you for your assistance. I need just a little bit more information.

First let me explain what's supposed to happen. Ditto logs you in with the "Remote Signer"  specification. Soapbox implements a Remote Signer. For you to log in, both Soapbox and Ditto must connect to Ditto's relay and send messages to each other.

So, please open the Network tab of your inspector, and filter it by "WS". Then refresh the page.

You should see a request for "relay". Click on that, then click on "Response" in the right sidebar. At first it will be empty.

Now try to log in. Do messages appear in the right pane, like shown here? Or is there even a request to the "relay" at all?

https://image.nostr.build/eec276cc591189747f347eaaa524a9eecd17bcebc9b5ec1e502048f938b7c17b.png