I havent played lfs since Dec 2008 online, today I tried to log on and had to do all the updates to get to vERSION z28. Now when I try to connect online it tells me on the screen,

Can join 0 - [no reply 60] - [wrong version 0]

At the top of the find host screen, why cant I find any rooms?

Changed your operating system? Computer? ISP?

Same operating system but right now I am using a Sprint Aircard till I get my internet hooked up in my new house.

All Z25+ servers use UDP now instead of TCP for connections - something's probably blocking/dropping UDP packets.