Esp-00 II Not responding

Hi, 

I have changed an IP for the esp I have and after changing the IP it is not showing in CSD, it is pinging in CMD and when I scan my network it does show up in the list, but in CSD it just says NO CONTROLSPACE DEVICES FOUND. 

I tried resetting it, reinstalling CSD in my computer, and even changed my computer but still the same.

Also, I am trying to access it via serial but it is not connecting at all. 

Please assist.