Rainbow Six error 3-0x0001000B

Connection to the server was lost

Ubisoft says this code shows up when the game loses its connection to the server.

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 3-0x0001000B

Restart Rainbow Six Siege.
Check Ubisoft Help for maintenance or an outage.
Turn off your router, unplug it for at least 60 seconds, then turn it back on.
Turn off any VPN or proxy and try a wired connection.

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
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
0-0x00001001Lost the connection to BattlEye
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 3-0x0001000B

How to fix error 3-0x0001000B

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