Rainbow Six error 0-0x00001001

Lost the connection to BattlEye

Ubisoft says this code appears when the game loses its connection with the BattlEye anti-cheat service.

Is Rainbow Six down right now? Operational: 37 problem reports in the last hour. If it were down for everyone, this error could come from there; right now it looks normal.

Fix it

How to fix error 0-0x00001001

Restart Rainbow Six Siege.
Power cycle your modem or router.
Do a clean boot so other software can't interfere.
Turn off any VPN or proxy.

From Rainbow Six's help pages: ubisoft.com, in our words. Checked on 11 November 2026. If the steps do not help, Rainbow Six's own support is the next stop.

Can't connect to serversOutage, router or software conflict
Game crashes or stuttersOld drivers, damaged files or background apps
High pingGame picked a far away data centre
Game won't launchUbisoft Anti-Cheat damaged or blocked
Legend Division lockedPC security features are not turned on
3-0x0001000BConnection to the server was lost
2-0x0000D00AMatchmaking service connection dropped
Failed to load player profileLocal save file is corrupted
0-0x00000312Connection through your provider was lost
6-0x00001000Matchmaking service connection dropped
2-0x0000C015Connection to the server was lost
01102Secure Boot not set up correctly

All Rainbow Six errors and common problems Live Rainbow Six status

Rainbow Six error 0-0x00001001

How to fix error 0-0x00001001

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