Welcome to the Community page,
Are you seeing any error messages or codes showing up when you're trying to renew your connection with NatWest bank?
What exactly is happening when you're trying to connect your bank up in Quickbooks?
Could you try these and one of them should resolve this issue you're currently having
Steps to try to make it work
Thanks for posting on this thread,
You could try deleting/uninstalling your natwest banking app off the device and then try connecting it up in quickbooks see if that works for you and then reinstalling the natwest banking up again.