Connection issue; "Failed to get token from Origin." & Infinite "Retrieving matchmaking list" loop.

I've had this frustratring error so many times, like everyone else here. Day 1 was surprisingly fine, then from March 12 till now it has progressively gotten worse. This morning, it had gotten so bad that the "Failed to get token from Origin" message would pop up the second the main menu did, and then would infinitely loop everytime I closed the error. I had contacted EA and spoke with a represenative via live chat and had tried all of the following:

Restarting Computer

Restarting Router/Modem

Reinstalling the game/Origin

Repairing in Origin launcher

Running as administrator

Disabling firewalls

Flushing DNS

Renewing IP Address

Deleting temp files

Opening/Forwarding appropriate ports

and finally, it wasn't until the last method did I notice some improvement. I was told to go to Network and Sharing and enable "NetBIOS over TCP/IP" under the TCP/IPv4. After I did that, I no longer got the infinite loop at the main menu, and I could actually get into some games. However, It seems that there is still a 50% chance that each game I go into will give me the "failed to refresh token from Origin" error. This is absolutely unacceptable, but expected, from EA.