I do not think this is supported configuration, see here and here. Thus you are lucky that W5300 worked (but what was the speed and quality of connection?).
The length 150 meters was tested just for experiment. It is out of specs of course but I guess a lot of hardware already support such cables. E.g. cheap switches (D-Link, TP-Link) worked with 150 meters cable too.
The question is why W5300 differs from W5200. In this topic W5500 was said to be operational with 120 meters. Is there similar information about W5200 and W5300 or the reason is schematics?
Hi…What clock rate are you transmitting? 10M should be fineWe are using CC2205R-BKB to connect 3 boards, it works fine and more convenient than flat one you are using. To sync 4 boards we have manually assembled cable from flat cable and crimp connectors, it also worked.