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Error codePokémon GoAndroid and iPhone
Pokémon Go: "Unable to authenticate"
Server hiccup or weak connection at login
The game can't confirm your login. The help center says this happens when the servers have a temporary issue or your connection is poor.
How to fix "Unable to authenticate"
Make sure your phone has a strong connection, or wait a short while and log in again.
Close the app fully and open it again: on Android use Settings, Apps, Pokémon GO, Force Stop, and on iPhone swipe the app away.
On Android with a Google account, remove the account under Settings and Accounts, then add it back.
From Pokémon Go's help pages: scopelyexplore.helpshift.com, in our words. Checked on 11 November 2026. If the steps do not help, Pokémon Go's own support is the next stop.
More Pokémon Go errors and common problems
- Can't log inForgotten password, email or login method
- App freezes or won't loadOften an old app version or bad data
- GPS location is offWeak signal, tall buildings or no GPS
- Adventure Sync not workingSteps or distance don't count
- Network connection issuesMobile data or network type settings
- Device not compatibleUnofficial app or unsupported system version
- Failed to log inTemporary server issue or poor signal
- Failed to detect locationMock location setting is turned on
- Your account has been suspendedThe account is banned for breaking the rules
All Pokémon Go errors and common problemsLive Pokémon Go status