Can someone please help me with WiFi connection on Windows 11, I've tried everything and still have problems?!!!

Hi,

So heres my problem, when I download something in the background, like a game on steam for example, and surf the web I get disconnected from the Wi-Fi. When I click on the network icon i get "Disconnected, Secured". I've tried everything, I reverted windows update for network card, used "ipconfig /release" method, changed power plan to "best performance", everything. Now, here is something that I've noticed. When I'm connected to a 5G network, and download something off the internet full speed while browsing web pages, i get completely disconnected from the internet, when i try and switch to older "pre 5G" network connection I never get that "Disconnected, secured" message. But still lose the connection. It's not like you get slowed down internet, I'm talking really disconnected from the internet. I also own a 13 year old laptop with Windows 10 on it, and I have never, ever experienced anything like this before. It really bothers when you read something and then suddenly get a message that you are not connected to the internet, you cant load a page.

The current laptop i own is a new one, I bought it couple of days ago and have windows 11 installed on it (does not support drivers for W10). I really don't know what else I can do, the immediate solution is to reconnect to the internet, but you can't keep doing that after every 5 minutes.

update:

Now I've tried only downloading something off the internet without surfing the web and get the same problem too. My download speed drops to 0 for a minute two and then when i reconnect manually i start downloading all over again. I've also checked my Device Manager, I have all drivers installed and updated. The only thing i've noticed is that on Windows Update I have a message "Install error - 0x80070103"