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e87
Moderate
Steam · Gaming
Login or authentication error preventing you from signing into Steam
Quick Answer
Error code E87 on your Steam Gaming means: Login or authentication error preventing you from signing into Steam. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
STEAM-DECKSTEAM-LINUXSTEAM-MACSTEAM-WINSTEAM-MOBILE
Likely Causes
  1. Too many failed login attempts caused a temporary lockout
  2. Steam Guard authentication is not completing properly
  3. Your account credentials are incorrect or have been changed
  4. Steam authentication servers are experiencing issues
How to Fix It
1
Wait at least 30 minutes before trying to log in again as your account may be temporarily locked
2
Double-check your username and password are correct
3
Ensure you are entering the correct Steam Guard code from your authenticator app or email
4
Reset your password through the Steam website if you suspect it was changed
5
Clear the Steam client's web browser cache and cookies
6
If using Steam Guard Mobile Authenticator, ensure your phone's clock is synced correctly
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes
Disk Write ErrorCloud ErrorE20E502 L3211
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