Why does WeChat sometimes fail to receive information?

1, network problem, try to check the WiFi connection, or check the mobile phone data network.

2. The background running problem, check whether the background running program is closed by system-level software.

3. Software problems, try to empty WeChat storage space or empty WeChat data.

4. Version problem, trying to upgrade the version, some old versions can't adapt.

5. Server problem, this feedback with the WeChat team.

Extended data:

Reason 1: screen locked and network disconnected.

Major manufacturers provide users with the switch of "whether to keep the network connection while sleeping", and students who have high requirements on the timeliness of WeChat messages can choose "always".

Reason 2: The operator's NAT timeout is short.

The official WeChat document shows that the minimum heartbeat is 4.5 minutes, but the NAT timeout set by some operators in some parts of China is relatively short (less than 4.5 minutes).

In this kind of network, if the screen is turned off, the long TCP connection of WeChat will be disconnected every few minutes, and it will be reconnected to receive the message. In addition, the power-saving strategies of major manufacturers are very inactive in the background and may not be reconnected in time, resulting in a higher delay probability and a longer delay time for WeChat.

This kind of network is easy to identify. If there is no delay under the 4G network/other operators' WiFi, only under a specific network, such as WiFi at home, multiple series of mobile phones will be delayed, probably because you use the NAT timeout of the network for a short time.