Federal return rejected with message:SH-F1040-520-01 - Schedule H (Form 1040), 'EmployerEIN' and 'EmployerNameControlTxt' must match data in the e-File database.

I have confirmed that my EIN which carried forward from last year's return is correct on Schedule H.  I have compared it to the last 2 years.  I've deleted the form and re-entered the household employee information.  What else can I do?  My return has been rejected several times.