Is there is an easy way to make a LAN server?

[Bukz]

Allow the server through your firewall maybe? Sounds like it could be the problem if you're the only one that is able to connect. Either that or your ports are not forwarded.

P.S.

Ignore this:

[SELECT ALL] Code:

WARNING: could not connect

in your logs - it just means it didn't establish a connection to a masterserver, which is what you WANT, hence -m localhost...