the reasons should be found from the following aspects. can wifi computers surf the internet normally? If the computer can't get on, it proves to be a wireless routing or network cable problem. Can other mobile phone applications connect to wifi? Other software can be connected, which means that the shrimp software is not installed properly, so just reinstall it. If other software can't, it proves that the mobile phone is connected to wifi but there is no data. The reason should be the IP conflict of wireless routing.