BF2042 Disconnects PC from Internet

I had very similar problems to the OP over the past few months.

Often when I go into BF2042 and my wife enters the same game I'm in, I will hear some garbled audio, stuttering then my ethernet connection disconnects (but sometimes it happens when playing by myself online). Wife is still connected to the Internet, playing the game and the modem seems fine. But somehow, happens to my PC. I've tried a whole bunch of things to no avail:

- Reinstalling network drivers
- Windows network reset
- Plugged ethernet cable into different port in modem
- Installed latest drivers
- Ran a malware scan (no malware)
- Repaired Easy Anti-Cheat
- Ran sfc /scannow
- Ran Program as Administrator
- Power Cycling
- Uninstalling and reinstalling Battlefield 2042 ONLY (not EA App)
- Run EAC as Administrator
- BIOS update
- Prime 95 Test (no memory issues)
- Installed Visual C++ Redistributable for Easy Anti-Cheat
- Turned Kernel Mode Hardware Enforced Stack Protection On
- Removed Acer User Experience service
- Installed new chipset drivers
- New ethernet cable
- Restart modem
- netsh winsock reset
- netsh int ip reset
- Tried a different modem
- Windows 11 Reset
- Added Easy Anti-Cheat to firewall
- Easy Anti-Cheat Full Control for all users
- DISM
- Reformat Computer
- Moving keyboard and mouse to USB 2.0
- Uninstalled Acer Care Centre
- Uninstalled PredatorSense
- Replaced Powerboard
- Killer Performance Suite uninstalled
- Replaced Network cable
- Killer Driver Uninstaller/Clean Installation
- Disable Wi-Fi Adapter and Bluetooth Adapter
- Installed new NIC
- Network Reset and Turned Permit Independent Port Sharing on Router
- Public to Private Network and changed router to Annex B
- Prioritized PC on modem in QoS settings
- Unplugged external hard disk
- I have installed an Acer firmware update to see if that helps (acer firmware 5.40.11.10)
- Reseated RAM
- Tried a new power extension cord
- Uninstalled OneDrive

My current specs:

Acer Predator Orion 3000 PO3-640

i7-12700

RTX 3060

16GB RAM

500GB SSD