I'm able to communicate at 100MB without any problems, however, when I try to communicating at 10MB the board does not respond to a ping. I'm using the DEMO software that came with the Tower. It appears that the PHY chip has correctly auto-negotiated the speed and duplex with the 10MB hub.
There is a similar thread TWR-K60N512 kit and 10 Mbps Ethernet which has some suggestions that I tried, but it is still not working.
I did try putting a jumper on pins 13-14 of J12 which selects 10Mbps Ethernet.
Please, any help is appreciated. I’ve been struggling with this problem for a long time.