Steam Gaming

19 known error codes

105 Moderate

Unable to connect to the Steam server, connection refused or timed out

106 Moderate

Steam client cannot connect to the network or content servers.

107 Easy Fix

Steam could not load a web component due to client networking failure.

109 Easy Fix

Steam login or session request could not be completed.

118 Moderate

Unable to connect to the Steam server, network connection was refused

20 Easy Fix

Steam backend request failed while processing account or transaction state.

211 Moderate

Failed to connect to the Steam network, client cannot reach Steam servers

5 Moderate

General Steam service error, an operation could not be completed

51 Moderate

Steam game launch was blocked by file, dependency, or anti-cheat preload issues.

Cloud Error Moderate

Steam Cloud synchronization failed, there is a conflict between your local saves and cloud saves

Disk Write Error Moderate

Steam cannot write game data to your disk during a download or update

E2 Easy Fix

Steam authentication network transaction failed before session establishment.

E20 Moderate

Purchasing or transaction error preventing completion of a Steam Store purchase

E502 Easy Fix

Steam endpoint returned service unavailable response during request.

E502 L3 Easy Fix

Steam Store or Community server error indicating backend service failure

E84 Easy Fix

Steam login security check failed due to account/session validation issue.

E87 Moderate

Login or authentication error preventing you from signing into Steam

Invalid Platform Moderate

The game is not available on your current operating system

No Licenses Moderate

Steam could not verify your ownership of the game, license validation failed