Hello Mustafa,
It sounds as if your controllers are fine but you are instead having a network issue. Since you have console access you might want to try the following.
1. Can you ping one controller MC IP address from the other controller?
2. Is the gateway address on the controllers correct and pingable?
3. Can you ping the switch or an outside address from the controller?
4. Are the LEDs on the controller host ports actively blinking green?
If all of these steps are not working correctly you need to investigate your network.
Cheers,
Shawn
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