Error 13801, IKE Authentication Credentials are Unacceptable
Posted by Aidil A. on 01 September 2022 08:51 PM
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Error 13801One of the most common errors related to IKEv2 and certificates is 13801, IKE authentication credentials are unacceptable. When an attempt VPN connection using IKEv2 fails, the Windows Application event log will record an event ID 20227 from the RasClient source. The error message states the following:
Possible CausePossible causes of Error 13801:
SolutionFollowing solution will be applied for the cause trusted root certificate absent on the client PC. 1. Download following certificate
2. Right-click on Start and select Run 3. Type in mmc and click on OK
4. If your PC 5. Once the 6. In the left menu, select Certificates and click on Add 7. On the next screen, click the radio button next to Computer account and click on Next 8. Click on Finish 9. Click on OK 10. In the From here onward, you will perform certificate import into 2 locations certificate stores:
Trusted Root Certification Authorities11. Expand Trusted Root Certification Authorities in the left pane, right-click on Certificates subfolder and select All Tasks and then Import 12. Click Next in the Certificate Import Wizard 13. Browse to where you saved the CA certificate downloaded earlier and select it. Then click on Open
14. Back to Certificate Import Wizard, click Next 15. In the Certificate Store window, ensure that it says 16. Click on Finish and then OK.
Third-Party Root Certification Authorities17. Expand Third-Party Root Certification Authorities in the left pane, right-click on Certificates subfolder and select All Tasks and then Import 18. Click Next in the Certificate Import Wizard 19. Browse to where you saved the CA certificate downloaded earlier and select it. Then click on Open 20. Back to Certificate Import Wizard, click Next 21. In the Certificate Store window, ensure that it says 22. Click on Finish and then OK.
ReviewYou should have by now successfully import root certificate ISRG Root X1 (Internet Security Research Group) into certificate store: Trusted Root Certification Authorities Third-Party Root Certification Authorities You may close Now you may retry again reconnect your IKEv2 VPN.
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