Errors Server isn’t receiving packets Common errors Unknown packet code Unexpected request code Message-Authenticator is missing Message-Authenticator fail verification Proxy-State is missing Packet fails verification Did not find request which matched response Less common errors Unexpected response code Packet contains too many attributes IO error Rare errors Packet is too small Packet is too large Header length does not match received packet length Attribute 0 is invalid Attribute has invalid length Attribute overflows the packet Failure decoding a packet Message Authenticator has invalid length Authentication Failures Issues with Databases