Lan port off

Hello Oguzhan TURAN,

Thank you for reaching out to the community. The current hardware and software are declared EoL
Retirement calendar: https://support.sophos.com/support/s/article/KB-000035279?language=en_US#

You can perform the ethernet test and see the status whether the hardware port test passed or failed: 
https://support.sophos.com/support/s/article/KB-000036345?language=en_US

it didn't work

You mean it failed ? Did you ensure the interface Port was connected ?
if the method did not work for you, you can also use a shell command: ethtool -t <Interface Port> ---> Example: ethtool -t Port2 
*Note: ensure the cable is connected to the port interface you are testing. 

yes it gave an error. I have a connection but the light on the port is not lit. It's like the port is not active. I gave an ip to the port from the console interface. I will do basic configuration via glu but I can't access. now i will try the command 

Sure, please share the output once it displays the result...
This could also possibly mean a faulty port if the LED does not blink even after reboot and cable change...

I did a fresh install on the device. The led light is not on since the beginning  where should i write this ethtool command I'm learning for the first time :) sorry

I did a fresh install on the device. The led light is not on since the beginning  where should i write this ethtool command I'm learning for the first time :) sorry

It's okay, login via putty SSH admin credentials on the menu press 5 for the device management > press 3 for the advance shell 
# ethtool -t <Portno> 

The test result is FAIL
The test extra info:
Register test (offline) 0
Eeprom test (offline) 0
Interrupt test (offline) 0
Loopback test (offline) 0
Link test (on/offline) 1

the output i got

Yup, confirms a bad interface. 
and again as mentioned: current hardware and software are declared EoL
Sophos Cyberoam End of Life: https://support.sophos.com/support/s/article/KB-000041566?language=en_US

I want to use the device in my small network. Is my port disabled because of the version?

Nah it has nothing to do with the version. 

Try re-imaging the appliance: https://support.sophos.com/support/s/article/KB-000036812?language=en_US

You can download the old installers from here: https://download.sophos.com/network/SophosFirewall/installers/index.html

 I installed sw 17.5 version on the device. installation was successful but my lan port disablee :((( I can access the console interface but my port is disabled. 

how do i activate the port

What's the status on the GUI ?

And what is the status of other ports ?

i only access console port. I am giving ip to my lan port number 1. but i can't access the gui interface. 

May be this can help you configure other available ports: https://docs.sophos.com/nsg/sophos-firewall/v17.0.5/PDF/SF%20OS%20Command%20Reference%20Guide.pdf