Thank you for the detailed steps to be able to reconnect.   I have done all of this (I removed Quickbooks from Login with Paypal before), retested and still cannot connect.   My QBO gets stuck at the "Grant Permissions" steps when reconnect.  I don't receive an error, it goes to the wheel of death.   Any other suggestions?  I have opened a case with paypal and QBO, and both say it looks like it should work.