Need Server Help

Why Can't I Join to other servers??? There Comes Some Darn Lan thing or something about valve when i try to join! What The Heck do i have to do so i can join! :warning:

I'd guess it's because you aren't using Steam. If I'm right look here.

You need Steam to play ESF online.

Your'e going to need to setup hl on steam too and your mods. Firstly register your half-life cd key under steam then let steam gather the required game content. After that is done run the hl hazard course and then exit it as it creates a folder for mods, after that, Install esf.