Thank you for posting on the Intel® communities.
Regarding Linux and Intel® Wireless Adapters, you can refer to the following link which provides a list of recommended Wireless drivers (firmware) for different Wireless Adapter models.
In the link provided above, you can find links with additional support options regarding guidance, issues, and general questions.
Also, since you mentioned you have replaced the original wireless adapter that came pre-installed on the notebook, we recommend checking with the Original Equipment Manufacturer (OEM) to discard hardware or software issues.
OEMs may limit the computer to only specific wireless adapters. Installation or use of Intel® Wireless Adapters is subject to country-specific legal regulations. Some countries require the Intel® Wireless Adapters to be certified with the antenna that is intended to be used together in the system, while some countries require the Intel® Wireless Adapter to be certified at the full system level.
For more information, please refer to the following links:
Hopefully, other peers may provide additional suggestions.
Intel Customer Support Technician
A Contingent Worker at Intel