If you're playing between 9AM and 9PM on PC, there will often be one server for each mode by which there are enough players for a round. Any time outside of that range and you often won't find a game. Also, even during peak hours, if you are playing on a server of a particular game mode and find the matches are entirely one-sided and then go to try to find another server, there will only be that particular server available with enough players.
I played yesterday to accomplish a Hutt contract and got the Rodian blaster. I felt a sense of accomplishment there because I'm not that great and you have to get 15 blaster pistol kills in a round + 30 pistol kills in Blast mode, but I found that I no longer earn credits for anything after the rounds are over? Is that a bug I wonder?
At any rate, I did have some fun with it yesterday, but when the contests became one-sided on the server, I backed out and only that server was available when I tried to go back in. Same group of players.