Fixing the "Failed to obtain a trial serial number from N Titles server." Error
Originally by FoxtrotZulu
http://www.neoseeker.com/forums/22121/t1111218-fixing-failed-to-obtain-trial-serial-number-from-titles-server-error/

Ok. Today I will show you how to fix this common error, as many people do not understand why they can't play. The answer is simple. RPG Maker XP was built in compatibility for Windows XP.

You will either get the exact error as above, "Failed to obtain a trial serial number from N Titles server." or a similar one saying that you cannot connect to N Titles server. I will show you how to fix both of these.

"Failed to obtain a trial serial number from N Titles server."

This is because you have Windows Vista.


1. Go to your root RMXP directory. (Usually CProgram Files\Enterbrain\RPGXP)

2. Right click RPGXP.exe and choose "Properties".

3. In the "Properties" popup, go to the "Compatibility" tab.

4. Check the box that says "Run this program in compatibility mode for:" and select "Windows XP (Service Pack 2)"

5. Check the box that says "Run this program as an administrator".

6. If you cannoth check the box mentioned in step 5, follow steps 7 through 11.

7. Click on the button that says "Show settings for all users".

8. Click the "OK" button on the "Windows needs your permission to continue" button, after inputting the password of the specified administrator if necessary.

9. Check the box that says "Run this program in compatibility mode for:" and select "Windows XP (Service Pack 2)"

10. Check the box that says "Run this program as an administrator".

11. Click the "OK" button.

12. Click the "OK" button.

13. Right click PSIKey.dll and choose "Properties".

14. In the "Properties" popup, go to the "Security" tab.

15. Click on the "Advanced" button.

16. Highlight the permission entry that says "Users ([your computer's name]\Users)" where [your computer's name] is whatever you named your computer. (Mine is Media-PC)

17. Click the "Edit..." button.

18. Highlight the group "Users ([your computer's name]\Users)".

19. In the pop up that appears (It should be named "Permission Entry for PSIKey.dll", check the "Allow" box for the option "Full Control".

20. All of the "Allow" boxes below the box you just checked should now be checked as well.

21. Click the "OK" Button.

22. Check the box that says "Include inheritable permissions from this object's parents".

23. Click the "OK" button.

24. Click the "OK" Button.

25. Click the "OK" Button.

26. Run RPG Maker XP, and you should no longer get the error message!

27. If you still get the error message, log into the administrative account on the computer (With the owner's permission) and then run RPG Maker XP. It should work no matter what on that account, after you have successfully completed the above steps.

28. Have fun building games with the legal version of RPG Maker XP!

"Cannot connect to the nTitles server."

This is another common problem. Try one of the below things:

1. Check that you are connected to the internet, then try again.

2. Close all other applications (or just internet browsers) then try again.

3. Restart your computer.

4. Restart your router / Switch off WLAN switch and enable again if you have wireless internet.

Hope I helped.