Error code
Riot Error 1B
RIOTError 1B
Game/Platform Error· An error code shown by a game or gaming platform/launcher.
What it means
Cannot log in due to an ISP connection problem.
How to fix it
- Wait a couple of hours as it often resolves itself.
- run the League client in administrator mode.
- contact your ISP if it persists.
Not affiliated with Riot. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More Riot codes
- Error 7Riot servers are overloaded
- Error Code 002The League client failed to patch and you cannot log in
- Error Code 004The League client failed to patch and shuts down requiring a restart
- A critical error has occurredA critical error prevents you from logging into League
- Under maintenance errorThe League client cannot receive updates
- Unexpected Error With Login SessionA stuck League client instance blocks a new login
- Unknown DirectX errorA DirectX error prevents the League client from launching
- VAL 0VALORANT hit a connection error talking to Riot services
- VAL 1VALORANT hit a connection error talking to Riot services
- VAL 152Hardware ID ban
- VAL 19There is a problem with the Riot Client
- VAL 29A network issue is blocking VALORANT