Library network, the administrator must have found someone playing online games, and it was restricted and could not be connected.

Supplement: Perfect International is maintained in the morning, but not in the afternoon. I just went to official website to read the announcement. Recently, the perfection only lasted until 8: 00 am-1 0 on June. There is also maintenance at 8: 00 this morning, 10, and the estimated time is 2 hours, which means it is still under maintenance. No maintenance at other times. So you couldn't get online for the first two days. Must be your library network.