Gw2 drops my internet connection every time i start

[Neoniac.2813]

Not only i get disconnect from game but also it breaking my modem's connection , it takes 10-15 seconds to recover and by that time game goes crash already . I saw some other posts from last year , its not the first time this happens to somebody but its like my first time that i see a major game issue that blocks me from playing , couldn t finish sab daily run either :( any fix ?