The 1098-T section will not accept "Filer's federal ID no." and states that it is an "Invalid EIN". I know the number is correct. What is the problem?

[JohnW222]

The filer's ID number isn't matching up against the federal database, for some reason. 

All you can do is verify the ID number -- call the school if you haven't already -- but in all likelihood, the number on your 1098-T is correct.

If you've verified that the ID number is correct as you entered it, and you e-file again, the IRS' e-File system will almost surely reject your return once more.  At that point, your only option will be to paper-file your return and send it in.

Please see the TurboTax Help articles "How do I print and mail my return in TurboTax Online?" or “How do I print and mail a return in the TurboTax for Windows CD/Download software?” as appropriate for guidance on paper-filing.