Error 7

Error code 7 is an error message that is displayed by the game at times. It comes after the player has been disconnected from the game.

According to Gaile Gray it describes a connectivity error somewhere between the Guild Wars server and the player's end, which usually would mean some kind of hiccup at the player's internet service provider. While often an error 7 is the result of an issue on the clients end, ANet is sometimes responsible, as is apparent when a large percentage of online players receive an error 7 at the same time.

Err no. 7 is lethal and there is currently no way to recover from it and rejoin a party. Reconnects were promised for the release of Guild Wars Factions as a way to help with this game breaking issue. At the current time, reconnects have still not been implemented, and the release was planned to be available with Guild Wars Nightfall, but that date has since been changed to "in the future".

Often when a player has been disconnected and reconnects, they will privately message one of their former party members with the message: "Sorry, err7"