I am having a similar problem on a HP laptop using the Realtek RTL8732BE WiFi adapter keeps losing connection to the internet showing limited access. when doing checks the only issue seems to be that machine can not find DNS (all other machines on network working)
If I disconnect and then reconnect still showing limited internet access, the only way to get the connection working is to completely remove the WiFi adapter drivers and then reinstall the driver version 2023.4.0115.2015 doing this then allows access but you do lose the security settings.
At first I thought it was when adapter went into sleep mode? but after disabling feature, still loses internet access.
Is there an alternative driver version for Windows 10 or can the Windows 8.1 driver be used with Windows 10.
Any help would be useful I will keep on trying to find a solution and if I do I will post details here as this seems to be another undocumented feature of the upgrade !!!!!