Hello friends . 

I have problem with my s7 400 port 2 disabled . 

How can i solve this issue 

hello,

could you send us the  diagnostic buffer?

Thanks you

Thank youb for your reaction 

You can see the attachment  for buffer 

hello,

As the buffer indicates it is not an s7-400, it is et200sp.

In your Hardware Configuration Look for the Diagnostic Address of 2045,
Which is creating the Problem, Please Find it & Have a Look What is the Device.

Thansk you