Nothing happens on 'send' - SOLVED, possibly 'Remote extension host terminated' also

Describe the Bug

When you write your request, then press ‘send’ it flashes ‘Generating’ for split second, but then just goes to where it was - your request is still in chat typing window, and it doesn’t get send.

The reason - ‘default.exp-tas.com’ domain gets blocked (in my case by pi-hole). I tested this going back and banning it in the span of couple days. I believe it is not a coincidence at this point. Although the bug itself appears randomly - cursor might even work fine for some time but then start doing this, and even restarts won’t fix it. But unbanning this domain did.

I also had ‘Remote extension host terminated unexpectedly 3 times within the last 5 minutes’ error many times, but I am not sure if it gets fixed by unbanning this domain.

TLDR: unban exp-tas.com domain in your pihole or adguard instance.

Steps to Reproduce

Ban the domain mentioned above - after some time requests won’t send.

Operating System

Windows 10/11
MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.2.1 (user setup)
VSCode Version: 1.99.3
Commit: 031e7e0ff1e2eda9c1a0f5df67d44053b059c5d0
Date: 2025-07-03T06:16:02.610Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19042
(although I had this bug on multiple versions)

Additional Information

I’d say cursor becomes mostly unusable.

By the way, if one includes over 2 links in the forum post, the post will go to drafts. But the draft will be empty, so you’ll lose all your text. Fix this please.

Does this stop you from using Cursor

Yes - Cursor is unusable