Tried with a switch between, same result guessing interface1 is broken

Set auto negotition to off with 100mb and 1gbps with txflow off/on/auto and with auto negotiation on. Makes no difference at all, also changed network cable twice. And as I said it is working when I plug it in to a PC. Hardware issue with interface 1 maybe? Link shows active in other interfaces. Is ...

Hi I'm new here! I recently purchased a Mikrotik Rb2011il-In and I'm having some issues with it, all main features are working fine and I really love it. However every day or so the ether1-gateway interface goes down and shows "no cable". It's connected directly to my ISP's media converter...