If you are trying to install an app, play Apple Music or sign in to iCloud, there are plenty of reasons why your iPhone needs to connect to Apple servers, and if you encounter an error connecting to the server, you know your work can stop, because Apple needs to verify of your Apple ID and password before proceeding with many common tasks.
According to business insider, while the problem may seem vague, and the iPhone doesn’t give you any reason or cure, there are some quick and easy ways to troubleshoot the problem and get on with your day.
Wait and try again
There are many ways to troubleshoot when your iPhone can’t connect to the Apple ID server, but often the simplest solution is the one that works.
If you experience a temporary, intermittent error while trying to sign in to your Apple account, wait a few moments and try again.
Also, more often than not, logging in a second time will work just fine, especially if the issue is with congestion on an Apple server or a difficult network connection between your phone and the Internet.
Restart your iPhone
If an IT technician has ever asked you to shut down your computer and then turn it back on, you know the essence of this step, which is to restart computers like a PC so your phone can get rid of bad data, reset connections, and generally solve problems without Troubleshoot deeper.
Check your internet connection
If you can’t sign in to the Apple ID server, the problem might be with your internet connection, and there are two ways Apple will try to sign in: using a cellular connection or via WiFi, so check to make sure you have a good connection by checking the connection status Wireless is at the top of your phone screen.
Install the latest updates
If your computer software is outdated, it can leave system errors and incompatibilities on your phone that can interfere with your ability to connect to the Apple ID server.
Also, to check if your iPhone needs to be updated, start the Settings app and tap General, then tap Software Update.
Check if Apple service is online
Apple services may be offline, and Apple makes it easy to see if the service you’re trying to access is working as expected.
Open the Apple System Status page in a web browser and find the page you were trying to access.
If there is a red dot next to the service, it is offline and you simply need to wait before you can log in and access it.
Check date and time
You may encounter Apple ID connection issue, especially if you are trying to use iCloud, if your phone’s date and time are not accurate.
By default, the date and time are set automatically using an online service, but if your phone settings have been changed to set the time manually, that could be the cause.
To check you can start the Settings app and tap General, then tap Date and time, then make sure the setting is automatically enabled by swiping the button to the right.