Dear all,
I'm using Mikrotik server to help me controlling my network and all seems fine, but in the last few days some one from my customers try to get mikrotik server IP address and he success on that so there is no internet on the other customers and i gone to crazy in that situation.
my customers take their IP address by DHCP server installed on the same server, but this bad customer don't get his IP address from the same place, but he try to put it with himself.
Please dear help me to overcome that situation.

Use PPPoE

why i use pppoe ???
i want to use Hotspot, it is more secure and more reliable.
Also i want to tell you that when that customer do that the DHCP server still work, but you can't reach the server even through winbox or from telnet, also i can't reach my status page on mikrotik server.

but you can't reach the server even through winbox or from telnet

use MAC-WinBox

thanks man, but i want you to show me how can i use yours ...

Just open winbox, and hit the little ... next to the ip
It should find the mikrotik box, then connect to it by MAC address NOT ip address.

Thanks, but i really try it, with nothing happens.
but i want to tell you that how can i disconnect that customer from my network at all.
Please help me

You can't do that unless you use PPPoE. It has been discussed many many times.

ok, now i convert my network to pppoe server
please tell me what i do

It is all in the manual. If you have a specific question ask.

O.K, i want to remember you that, i want to prevent my customers from taking server's IP address.
that stops my server
Please help

you have to create pppoe

here is the link to the manual on how to set up pppoe:
http://www.mikrotik.com/testdocs/ros/3.0/vpn/pppoe.php


if you refuse to learn from manual then the other choice is to contact our consultants and pay for the job, here is link to our consultant list:
http://www.mikrotik.com/consultants.html

thanks a lot, but i want to ask you about the server's ip address that one of mu customers take.
so the server is hanging and their is no internet at all

Is there a question here?

Yes of course, i want to ask how can i prevent my customers from taking my server's ip address.
please help
it is urgent

Use PPPoE, like they have stated 5 times already.

thanks my friends,
but i want to ask what is the best way to setup my pppoe connections on my MT server ???
also i tried to setup it, but my website built in my MT server, can't be log in and the web which appeares is containing username and password to config the MT server as an administrator

You need to hire a consultant or read the manual. This topic really needs to be locked.

Pepo, jwcn is right, you have to attend a training in your area. check http://training.mikrotik.com

Thanks mr. normis,
i check the site you send it for me, but i want to tell you that i'm from egypt and no training available their.
Please help me.

You need to hire a consultant or read the manual. This topic really needs to be locked.

All the help you need is in the Manual, if you cant understand it, hire a consultant.