I use firefox + Java 8, no problem. You won't get it to work with chrome though. Just had to add https://entgaming.net to the java allowed websites, but looks like OP already did.

Same here. Seems to happen only on Legion TD games though. What's bugging me is that I can still see people chat while the game freezes, but I end up disconnected anyway. I'm afraid it's gonna get me banned. Other games are fine. I should also add that the entgaming.net website gets laggy after I ge...