Hello, I having the same issue. I rest my router, changed the password, and of course updated to the latest firmware. I have spoken to my ISP, but they did not seems to be able to solve it. Is there a way that changing a setting in my router can solve this? For what should I look? I have 2 routers, and I don’t want to replace them unless I’m sure I have to. Another things, if I get new routers, how do I make sure they wull not cause the same problem? For what should I be looking when choosing new ones? Apprefciate all comments and ideas. Thanks.