Hehe, I also use Ruijie campus network and have the same experience! Actually, it's the network speed. If the interface shows that you are ready to update, there are two possibilities: first, the network speed is not good, and you haven't started downloading updates yet; Second, the update has been downloaded, but the interface is not displayed. In most cases, it is the second case. Feifei is an educational network that can be played, but it has a great delay, so there are many problems. My school's education network, getting up and getting off in the morning is like a rocket: yesterday, the speed of getting off the Eternal Tower was11s, 10, and then it got stuck. It took more than 200 ms to fly. Alas, it was always killed. What a pain! It is suggested to change telecommunications or use an agent, so that playing games will not be so troublesome ~