Every time I run a map through hammer, TF2 always gives this error when the game tries to make a custom game. There's not much I've been able to find to help me with the issue; even following everything in this thread (https://goo.gl/3MDNWf) still gives the issue. If I can't test it like that, is there any other way I can test it? Thanks. EDIT: It looks like even when steam is booted, hammer is just by default launching tf2 in an offline mode. I'm fairly sure it's a hammer related issue by this point, not tf2.