Best posts made by akif.durmaz

@crispyoz
Well, this is a little embarrassing. I desoldered the connector and connected a different type connector. Even with shabby soldering it's working now. I just did not think a brand new ethernet connector would be faulty, that's my bad.
Thank you all for your help.

@JeffZhou
there was a product link in my original post but here, these are the only two pages from the datasheet;