We understand that the WiFi component of your Intel® Dual Band Wireless-AC 7260 is not being detected properly in your PC. As you mentioned, this may be hardware problem and we advise to check with the Computer Manufacturer Support as well. Here are some items for your consideration:
- Check if your PC has any hardware switch in the chassis for the Wireless component, or if it has a keyboard combination with this function. Make sure it is enabled.
- Try disabling, or uninstalling your antivirus/firewall and check if it helps.
- If the WiFi adapter is ON and enabled in the BIOS, then it should appear in Windows* Device Manager, under Network Adapters, or it may be an unknown device.
- Try installing the driver with Intel® PROSet/Wireless Software and Drivers for Windows® 10* [19.70.0]
- If the antennas were failing it would only affect the quality of the signal and connectivity. The wireless adapter does not require the antennas to be detected and should still be seen in Device Manager.
Thanks but I finally managed to fix it (it's been broken for months). I'm not sure what I did but it must be something to do with two things I did.
I popped the back off and pulled out the CMOS battery (black disc located in the corner that the WiFi card is in) and left it out for about 20 minutes.
Next I was in the BIOS and I used an option called something like "Reset to Secure Mode".
I didn't realise it was working until I boot into Linux and it was suddenly offering me WiFi networks. Went back into Windows and noticed it was there in Device Manager but disabled. Re-enabled it and it was all good. I suspect the CMOS reset did it but I hadn't noticed as it was disabled.
We are glad to know the issue was resolved. BTW, thanks for sharing your solution, we are sure this will be very useful for other users as well.