Thanks for the information you have provided. Even though you already found a workaround, we would like to get some additional details and perform some actions to isolate this issue.
- Please make sure you are using the most recent BIOS and system drivers for you NUC.
- Toggle off/on Fast Startup (Hybrid boot), we have seen cases where this causes start-up issues in some devices. You may use the following link for reference:
*NOTE: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.
Let us know if these actions change the behavior of the adapter when resuming from sleep.
Thanks for pointing me to the correct forum (wasn't sure with this soldered-on version of the card, tbh). I can confirm that:
1. The latest BIOS and drivers are installed from Intel Download Center.
2. Disabling Fast Startup makes no difference.
Only the Power Management workaround prevents the step down to N from AC on resume from sleep, but unfortunately this also disables the WoWLAN option (it becomes greyed-out).