2.4GHzはつながる５GHｚはつながらない

Wi-Fi & Networking Wireless Products
1

ドライバーDual Band Wireless AC-3168

他のPCでは問題なく接続できている

このドライバーのPCだけがつながらない

2

I believe  @n_scott_pearson    may have the answer.

Doc (not an Intel employee or contractor)
[AI is the same as snake-oil]

3

All I can say is, you need to have the final package and driver supporting this adapter and nothing later. Here is a link to my share. Final driver packages are sorted in subfolders based upon the adapter(s) that the packages support.

Hope this helps,

…S