Try to remove the current wireless network connection
1. Often restart the phone or restart the wireless LAN, here we do not introduce.
2. In the iphone, we click "Settings"-"Wireless LAN", as shown in the picture
3-1. In the Wireless LAN list, locate the network that is already connected.
3-2. Click the blue arrow symbol on the right of the wireless network to enter the network settings.
3-3. Click "Ignore this Network" and select "Ignore" in the pop-up confirmation menu, as shown in the picture
4. Then we reconnect to a wireless LAN. Finally, try to update the app Store software.
Attempt to restore network settings for iOS devices
1. In the iphone "Settings"-"Wireless LAN", click to enter, as shown in the picture
2. Then we found "restore" in general. Click Enter, then select "Restore Network Settings", click the Red "Restore network Settings" again, as shown in the following figure
3. Finally, we reopen the wireless LAN in the setup. In the Wireless LAN list, connect to the wireless network and try to update the software on the app Store.
To change the network DNS server for an iOS device
1. Access to settings, Wireless LAN.
2. Select the current WiFi and click on the arrow on the right.
3. Change DNS to 8.8.8.8
4. Close the app Store and reboot
Small hint. 8.8.8.8 DNS is the Google Rice server, which may solve this problem oh