Q:
Servers?
https://redd.it/620dfi
https://redd.it/6216sp
tl;dr UnityMedia is having uptime troubles, which is causing DCs for (some) EU players.
Like other posters, you can either go directly to ANet support with this, or you can use https://www.pingplotter.com/fix-your-network to track down exactly where the problem is.
If it’s in the anet/ncsoft network, that’s something they can solve. …it could be either on your local network, or some third party transit provider that is the most “direct” route from your part of the world to the ANet server hosting facility.
(Those third parties are, more or less, the expressways of the Internet: most traffic crosses them between source and destination, but [they] are neither the source nor the destination themselves.)
See also: https://forum-en.gw2archive.eu/forum/support/bugs/Random-lag-and-disconnect/6539568