[Fix] XUID doesn’t match the certificate error – IW4x

There are typically two possible causes for the “XUID doesn’t match the certificate error”.

The first explanation is that another instance of IW4x is operating in the background

Solution: You must run Task Manager as an administrator and terminate the IW4x processes.

The other known explanation is that the private and public keys do not fit

Solution: Go to players folder and remove guid.dat file, and then restart IW4x.

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