A week ago, I've installed a new windows because of some virus problems. I've noticed the problem just when I joined my friend's server. My problem is every time I joined the server for about 3-5 seconds, my internet status will turn to No Signal. I disabled my firewall or any other thing that can block Minecraft. I've tried looking about this problems online, but no one had the same problem as I did. If you know the solutions to this problem, please reply to this thread.