# Grok Bot: browser proxy 8791 down + all 10 screen locks stale (ticket T-I55701)

**URL:** <https://forum.cursor.com/t/grok-bot-browser-proxy-8791-down-all-10-screen-locks-stale-ticket-t-i55701/177325>\
**Category:** Bug Reports\
**Tags:** computer-use, grok-bot\
**Created:** [November 5, 2026, 12:44am UTC](https://forum.cursor.com/t/grok-bot-browser-proxy-8791-down-all-10-screen-locks-stale-ticket-t-i55701/177325 "2026-11-05T00:44:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Oekaki](https://avatars.discourse-cdn.com/v4/letter/o/c0e974/32.png) [@Oekaki](https://forum.cursor.com/u/Oekaki)\
**Post date:** [November 5, 2026, 12:44am UTC](https://forum.cursor.com/t/grok-bot-browser-proxy-8791-down-all-10-screen-locks-stale-ticket-t-i55701/177325/1 "2026-11-05T00:44:35Z")

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### Where does the bug appear (feature/product)?

Grok Bot

### Describe the Bug

My Grok Bots cannot use the desktop or browser. This has continued for about a week.

1. Browser egress proxy on 127.0.0.1:8791 is not running (no sand-egress-tunnel / supervise-egress-tunnel). curl via that proxy returns exit 7 / HTTP 000. Direct shell network works (box-doctor egress PASS).
2. box-doctor reports FAIL novnc-forks: no fork noVNC websockify on 6081.
3. All 10 slots under /tmp/sand-window-locks.d have stale .bound files pointing at dead PIDs (slots 2-11). Desktop/browser attempts fail with “All screens on the shared computer are in use” / browser not ready.
4. “Update Bot’s Computer” around 2026-11-04 17:00 JST did not move the box to a fresh instance. An Update on 2026-10-29 also failed. I have not run Reset, per Support’s earlier guidance.

Shell and non-browser work still function. Without the browser I cannot do my normal work.

Support ticket: T-I55701. Follow-ups 2026-11-02 and 2026-11-04 17:05 JST. No reply yet.  
Related forum threads: 177180 and 176333 (same symptoms; staff said known issue).

### Steps to Reproduce

1. Ask any bot to open a website or take a screenshot.
2. Bot reports screens in use / browser not ready, or the desktop view stays on “Waking Up…”.
3. On the box: no process on 8791; curl -x [http://127.0.0.1:8791](http://127.0.0.1:8791) [https://example.com](https://example.com) fails; all 10 .bound lock files point at dead PIDs.
4. Run Update Bot’s Computer — problem remains.

### Expected Behavior

Each bot gets a working desktop and browser. Proxy 8791 should be up, and screen slots should not stay bound to dead processes.

### Operating System

Windows 10/11

### Version Information

Grok Bot 0.78.4 (Windows)

### Does this stop you from using Cursor

Yes - Cursor is unusable

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**Author:** ![mohitjain](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/mohitjain/32/100229_2.png) [@mohitjain](https://forum.cursor.com/u/mohitjain)\
**Post date:** [November 5, 2026, 9:45am UTC](https://forum.cursor.com/t/grok-bot-browser-proxy-8791-down-all-10-screen-locks-stale-ticket-t-i55701/177325/6 "2026-11-05T09:45:27Z")

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Hey @Oekaki, update from our side. I’ve refreshed your bot’s computer onto a clean, fully up-to-date instance (your files and bots are intact). That should bring the browser proxy back. Please fully quit Grok Bot and reopen it, then ask one bot to take a screenshot and open a site. If you still see “All screens … in use” after that fresh relaunch, reply here and I’ll keep digging - that part points to a separate issue we’re already tracking.