AC, first of all it is important to find out why the built computer is not working properly. This could be an installation problem or a defective adapter.
- Would you please let me know which is the model number of the motherboard you are using?
- The AC7260 is a laptop adapter or a desktop adapter?
- Also, make sure you are running the latest BIOS, firmware and drivers.
Could you please check on device manager if the driver appears to be install?
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