Hi I bought the construct 2 license and linked it to construct 2 but now when i run the program in administrator mode for preview over wifi the license is no longer linked to construct 2 and i can't see the license file.
You can try downloading the license file again and put into the C2 execution directory.
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Try to see if the last paragraph of the manual article "Using a license" helps you.
If not, you might send a mail to licensehelptmn@scirra.com for further support.