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gsmackers, Thank you for posting in the Intel® Communities Support.
In order for us to provide the most accurate assistance on this scenario, first, we just wanted to confirm a few details about your system:
What is the model of the motherboard?
If this is a laptop, what is the model of it?
Were you able to use Ubuntu along with the Intel® wireless card on this specific machine before?
The wireless card, did you purchase it separately or did it come installed on the computer?
Does the problem happen at home or in the work environment?
WiFi troubleshooting steps
Step 1: Check whether the kernel version customer uses supports this device:
The reference table of Wireless adapters and corresponding kernel versions is available by the link: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi
The latest FWs are available by the following link: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/
If the kernel version corresponds to the Wireless adapter, proceed with step 2.
Step 2: Check whether the Wireless adapter is connected correctly:
Type the following command to the terminal: # lspci
Verify that the Intel network controller is identified, as on a picture below. If not, then the system doesn't identify the Intel network adapter and you will need to make sure it's properly integrated. You may need to request help from the system manufacturer. If the wireless adapter is properly identified - proceed with the step 3.
Step 3: Check whether this is an iwlwifi issue:
Type the following command to the terminal: # modinfo iwlwifi (example of the command output is on the picture below). If there is no output, then the module isn’t installed this is the distribution installation issue.
Please type: # lsmod | grep iwlwifi
If the result is empty, the driver hasn't been loaded. Most likely to be a distribution issue.
To verify, please type: # dmesg | grep iwlwifi
If the result is empty, the driver wasn’t initialized and this is a distribution issue. If the result is populated as on the above picture, proceeed with the step 4.
Step 4: Check whether the suitable firmware is installed:
Please type: # dmesg | grep “no suitable firmware found!”
If the result is not empty, it means you don't have a suitable FW (api mentioned in the dmesg).
Please visit here https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi for supported FW, or here https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ for the latest versions.
If these steps didn't reveal the issue or didn't solve the problem, proceed with the Step 5:
Step 5: Collect the debug data:
Please type: # dmesg | grep ASSERT
If the output is empty, please follow this wiki: https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging to extract dmesg and trace-cmd.
If the output has value, please collect from the wiki FW dump too.
Any questions, please let me know.
Regards,
Albert R.
Intel Customer Support Technician
