Hello.I opened the server in LFS 6.T version.Server password is 123456. But can you help LFSLapper gives an error?

It looks like Lapper is using another password.
Maybe another file is used, instead of default_1 ?

How can i understand it ?

Open "..\Lapper\bin\LFSServers.cfg" and make sure default_1.ini is set for your server.

Quote from LakynVonLegendaus :

Open "..\Lapper\bin\LFSServers.cfg" and make sure default_1.ini is set for your server.

yes I'm sure my friend

Your Insim port is 29999 not 11111.

DEMO and South City, riiiiight.

Dont be stupid and support the LFS devs, please buy the game legit.
Great content is coming and with your support its gonna be better.

-Restart the dedicated server / your lfs.
-Be sure your Insim port is the same as the insim port on your lapper.
-DO NOT type the insimport command ingame or in the dedicated window.
-Start Lapper.
-Have fun

Quote from Bass-Driver :

DEMO and South City, riiiiight.

Dont be stupid and support the LFS devs, please buy the game legit.
Great content is coming and with your support its gonna be better.

-Restart the dedicated server / your lfs.
-Be sure your Insim port is the same as the insim port on your lapper.
-DO NOT type the insimport command ingame or in the dedicated window.
-Start Lapper.
-Have fun

Current username is not my real account.I bought the S3 License long ago and I'm playing buddy.
The problem is solved. Connecting without typing the ip address