CERT_COMMON_NAME_INVALID

The server responded with a certificate whose common name did not match the host name. This could mean:

1. Traffic was redirected to an attacker-controlled server presenting a certificate with a private key known to the attacker.
2. The server is misconfigured and responds with the wrong certificate.
3. The user is on a wireless network and is being redirected to the network's login page.
4. The OS used a DNS search suffix and the server does not have a certificate for the abbreviated name in the address bar.