First, restore network settings
Sometimes because of the network settings problems caused by the inability to connect, you can try to restore the network settings, on the iphone, turn on the set → general → restore
Into the iphone's restore Settings page, we can see "Restore network Settings" in the page, select and restore the network settings, then reboot the phone, reconnect the WiFi, and open the App Store again to try to solve the problem?
If the above restore network settings trouble, you can try a WiFi reset, open the iphone Settings page, find the "Wireless LAN", click to open
On the right side of the currently connected WiFi account, click "I" to set the icon button
At this point, in the open page, select "Ignore this network", and then restart the phone, reconnect to the WiFi, to see if the problem is resolved?
Third, replace the Apple ID
Sometimes because of Apple ID problems caused by the itunes Store can not connect the phenomenon, the quickest way is to borrow someone else's Apple ID to log in, if someone else can connect, then may be their own before the Apple ID registration, some information is not complete, Directly to the official address to complete the:>>> click to enter
Four, reset date
In the same way, open the settings → general → date and time on the iphone and turn off the toggle button on the right side of the auto set.
At this point, adjust the current time to the same time last year, 2014, and then try the itunes Store again, is there a problem? If you are still not connected, then turn on the "Automatic settings" again, try again if the problem is resolved? If not, try again and again.
V. Reset Access Restrictions
On the iphone, turn on the settings → general → access restrictions, click Open it
If the access limit is currently turned on, see if the itunes store below is also open? If so, turn it off directly
If the access restrictions are currently off, click "Enable access Restrictions" directly.
Set the 4-digit password for the access limit, and also open the itunes store below the list, and then stay for about 5, 6 seconds
Turn the access restrictions back on again, and click "Deactivate access Restrictions" and try again if the problem is resolved?
Vi. Replacement of the network
If you are using a connection problem with a WiFi network, you can change the network to a cellular data and try again; Similarly, if you are using a cellular data network connectivity problem, then try the wireless LAN.
If none of the above is possible, it may be the location of the operator network problem, or the Apple server problem, separated for a period of time to try again, or look around friends using the iphone, use the same operator network, wireless network to try the connection, Troubleshoot network problems or your own mobile phone problem.