Java.Net.SocketException Connection Reset

Hello !
I have this error : "Java.Net.SocketException Connection Reset" when I try to join a multiplayer server.

I updated my computer and Java.

I tried allowing OpenJDK16 through the Windows firewall but : 
I couldn't find "OpenJDK Platform binary" but  I found javaw.exe
The private checkbox wasnt checked so I checked it. But sadly it didnt fix the error.
I dont use vpns. Never installed hamachi. Only have windows defender as my antivirus.
I also tried while deactivating my private and public firewalls.

I can't use Wifi.
I tried with a new profile on latest release. 

I also tried following these steps : 
Try the following on Windows:
Press the Windows Key, then type cmd.
Under 'Command Prompt,' click Run as administrator
Type netsh winsock reset and press Enter.
Type netsh int ip reset and press Enter.
Type ipconfig /release and press Enter.
Type ipconfig /renew and press Enter.
Type ipconfig /flushdns and press Enter.

And these ones : 
Press the Windows Key, then type cmd, right click on "Command Prompt," and click Run as Adminstrator.
Type netsh interface tcp show global and press Enter.
If Receive-Side Scaling State is disabled, type netsh interface tcp set global rss=enabled and press enter.
If "Receive Window Auto-Tuning Level" is disabled, type netsh interface tcp set global autotuninglevel=normal and press enter.
Restart Minecraft and try the realm/server again.

I never had this issue with my old computer and this one is new. This is the first time I've installed Minecraft on it so I guess there is an issue with my computer itself ? Not my ISP.

I know it's a duplicate but I tried everything I found online with no success.