Unable to connect to server cannot connect to server for reasons unknown fix on iPhone 7 Plus

Hey there ant772,

We understand you're experiencing an issue with receiving an error that your iPhone is unable to connect to the server, and we'd like to see if we can help.

First, restart your iPhone, and check for the issue again.

If it persists, this may be due to the No SIM error you're seeing: If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

Cheers!