Messages often get lost in the PC version of QQ; I don’t know what to do

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I’ve noticed that on the computer version of QQ, messages are often lost; I frequently fail to receive certain messages, whereas on the mobile version, which is on the same network, I can receive all messages. Sometimes people think I deliberately don’t reply to messages. Now I have to check my phone from time to time. Sometimes, when I’m busy and don’t check my phone for a long time, I miss things. It is already known that the network connection will occasionally drop for short periods. It might be for this reason. But on the mobile version, all information is transferred once it’s connected to the internet, whereas the desktop version loses some information in an unpredictable manner; I can’t figure out why. I saw on Zhihu that it has something to do with the TCP protocol settings in QQ, but this setting cannot be found in the current version of QQ. I don’t know how to solve the problem of lost information in QQ.