Claude.ai "Unable to connect" (connection error)
Is there an outage right now?
Claude official status is operational. If this error persists, it is likely an implementation or environment issue on your side.
View Claude status →What this error means
Claude.ai could not establish or keep a connection. It is usually a network, browser, or session issue on your side, and occasionally an Anthropic-side outage.
Common causes
- •Unstable Wi-Fi or mobile connection
- •VPN/proxy or firewall blocking the connection
- •Browser cache/cookies or an extension interfering
- •An expired login session
- •An Anthropic-side outage
How to fix
- 1.Reload the page and check your connection
- 2.Turn off the VPN/proxy
- 3.Clear cache/cookies or try incognito
- 4.Log out and back in
- 5.Try another browser or device
- 6.Check the status above
When waiting helps (and when it won't)
Connection/session issues clear once the network is stable or you re-login. If it is an Anthropic outage, it resolves when the incident does—check the status above.
Alternatives when Claude is down
Related errors
FAQ
What is Unable to connect?
Claude.ai could not establish or keep a connection. It is usually a network, browser, or session issue on your side, and occasionally an Anthropic-side outage.
How do I fix Unable to connect?
Reload the page and check your connection / Turn off the VPN/proxy / Clear cache/cookies or try incognito / Log out and back in / Try another browser or device / Check the status above