If you kept getting kicked to the main menu when logging in, it might not have been you or your internet.
What happened
BULKHEAD confirmed this morning that one instance of the game had been broken from the very start. One hundred players out of three hundred thousand were consistently getting dropped to the menu as soon as they landed on that particular server. Not random, not "lag" — one specific server doing this to everyone who connected to it.
It has been shut down. The studio apologized.
What this means for players
If you were getting kicked, try logging in again — the chance of landing on that same server is now zero. If you're still crashing, that's a different cause, and we're looking into it separately: write in the chat and we'll sort it out.