Unable to check for update
An error occured while checking for a software update
iPhone XR, iOS 13
An error occured while checking for a software update
iPhone XR, iOS 13
Try that in safe mode.
The below is based upon the user is attempting to " Check for update " on an iPhone and not for updating an Apple Computer.
Which is were this question is appearing >> macOS Ventura for computers
Refer to below links
If your iPhone or iPad won't update - Apple Support
Connect to Wi-Fi on your iPhone, iPad, or iPod touch - Apple Support
iPhone models compatible with iOS 17
Unable to check for update