Disconnected from matches after 3-5 mins... AGAIN

I can't believe I'm writing this for a second time. I was happily playing REDSEC for 2 consecutive hours until my router needed a software security update.
I applied the update and when I try to play the game again it disconnects on every match after 3-5 minutes. This happened last week and I can't believe I have to deal with this again.
I'm linking the previous post so you can have some context on the errors displayed. Once again, I've tried every single thing that both BF6 and EA forums suggest and nothing works.
https://steamcommunity.com/app/2807960/discussions/0/581677493394803526/

Have u tried to delete your bf6 cache? appdata/local/bf6/cache/ delete whats in here. Might just be the update ? It's good to delete whats in the cache after a update.GL