[Help] Can't connect server with client properly

Hello. Yesterday I tried to set up s6e3 server via forum guide and faced an win7x64 issue (TitanLink and SCFExDB not responding; - manual odcb config and other tips I have searched made no changes). So, today, I decided to try my best with ex700 server build. All server elements both with MuMaker are working fine (as far, as I understand), but now I got stucked with the client part. After the client launch appears a little freeze after the game is loaded and "You are disconnected from the server' window appears, or there is no server available (just the animated main menu gui) I tried to change IP both in main.exe and main.dll. I tried different options like local 127.0.0.1, ipv4 (192.168.1.5), external ip. I launched the client on the same OS the server is located in. Also, I tried to launch the game on different pc in the same wi-fi network and in the different. To sum up - i have no idea where did I failed, but I'm sure it's all about wrong ip config somewhere in the files...

If u can help me to find the solution reply here, I'd appreciate that. Thanks.

p.s. I wish the configuration tutorials here would be a bit retard-friendly, for individuals like me xD. (step-by-step ipconfigs with a description why here/there should be local/external, etc)