In the hotel, there is a router that can access the Internet. These days, the network is available for a while and broken for a while. What happened?

I don't think the virus is possible. I also use wlan to surf the Internet at home and other places. The signal is always full, but it drops after a few pages. Later, I stood under the sign of his wireless internet area, which was ok, so I came to the conclusion that the distance was too far, and his router didn't know where to hide, so I wanted to get close. If you can't get close, consider ARP virus.