Start with the most common causes before resetting the wallet, restoring from a recovery phrase, or trusting a support message.
Browser or mobile app version is outdated
Extension cache, browser profile, or local wallet state is stuck
Another extension, privacy tool, VPN, or security setting is interfering
Selected network or RPC endpoint is timing out during wallet load
The device storage, browser profile, or app installation is unstable
A fake update prompt is pushing a cloned MetaMask download
A MetaMask restore can look incomplete when additional accounts, imported private-key accounts, hardware wallet accounts, custom networks, or manually imported tokens have not been re-added
A MetaMask browser or extension update can reload the wallet, reset connected-site permissions, lock popups, or leave stale RPC/token data until the profile refreshes