It appears that this is a common problem among people playing on European servers, there is a network latency thread here with people complaining about the same issues (severe game lag but still able to chat).
Although I myself haven’t posted a ticket other people have and then posted the replies in the thread, apparently lots of people who are experiencing this problem are using France Telecom like me and Anet have said the problem lies with the ISP routing to the servers and is not something they can fix.
This ends the discussion unfortunately and leaves the problem at the users door. If it was minor lag I could deal with it, in fact when the problem first started appearing about a month ago the lag spikes only lasted a few seconds and I just played through. Recently however the lag has become ridiculous and if I am in fractals or Tixx it is not unusual to have over a minute lag: skill bar is unresponsive, other players just run in the same direction, mobs freeze, still able to chat however.
Considering the only real enjoyment I get out of GW2 is grouping with other people and doing instances I have shelved the game until the situation resolves itself, not much else I can do is there?
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