Guess since all these posts keep getting moved to resolved I will post it again. I am also having this issue and it's been happening for over a year. I have tried all the fixes...

New modem, New router, Wtffast, Even changed my ISP from Comcast to Frontier to still no avail. This is the only game that I have problems with I can play ESO, Rift, LOL and never once get an error but every time I play this game at least once or twice a day I get this error. Any help would be appreciated.......