Definitely looks like a connection problem to me.
There can be countless reasons.
One of these reasons could be if you consciously use a VPN, then try deactivating it. Some browsers have a VPN activated by default, which you may be using unknowingly. Find out how you can deactivate it, or switch to a fresh installation of Chrome, for example.
If you say you have the disconnections on several machines and a fresh installation doesn't help, then it's your ISP's fault, as there is no known global server-side problem.
Good luck!
Player_No1
FlyOrDie Moderator Team