I believe ac and N are really the same thing but I find it interesting that the name has changed. The device name has changed from Broadcom 802.11ac Network Adapter to Broadcom 802.11N Network Adapter. Updating windows with the April Cumulative update - KB4550945 doesn't allow the network adapter to start at all. I got to this point only after determining one of the updates was completely breaking the network adapter.
Part 1 - Is there a work around for needing to restart the network adapter after bootup? My brother reports that he did not have to restart the device previously (and I don't think he would know how to anyway). I have checked the power settings for the device and set it to not allow the computer to turn off. At this point, I disable the device and re-enable it. The Broadcom device is labeled "Wi-Fi 2" and is listed as enabled. Right now, in order to get the WiFi to connect, I boot up windows, login, open the Network & Internet setting, and click on Change Adapter settings. I was able to install updates KB4549951 and KB4537572. The laptop is now running Windows 10 Home (圆4) Version 1909 build 18363.778. The hardware ID is where I got the Broadcom 4350 info from. The hardware ID of the device is listed as VEN_14E4&DEV_43A3. Unfortunately I do not know what was running previously. On initial install, a roadcom driver from - Version 7.77.113.0 is automatically loaded.
I built a Windows 10 install disk off my laptop which is running Windows 10 Home (圆4) Version 1909 - note the version difference. He asked me to do a fresh install of windows 10 for him. It would give an option to turn Wifi on "Manually" "In 1 hour" etc. The symptoms were that the network icon on the task bar would show WiFi as off. KB4532693, Update for Windows 10 (KB4532693) and KB4552152, Security Update for Windows 10 (KB4552152) were recently installed. At the time he was running Windows 10 Home (圆4) Version 1903 (build 18362.657). His initial report was that he did a windows update on Saturday (18 April) and he could no longer connect to the internet. My brother reported a problem yesterday with his laptop and asked me to take a look.
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