Switch – HP ProCurve Port Mode Configuration Question

I changed the NIC settings on the PCs from auto-negotiate to 100/full. It didn't seem to help. Still some of the ports have negotiated to half-duplex.

If you forced the duplex/speed on a computer then you MUST also force the settings on the switch. In my experience most switches will default to a half-duplex connection. By forcing a duplex setting and disabling auto-negotiation on a computer, you are most likely causing a duplex-mismatch.

Here is a link describing the behavior for Cisco switches. Even Cisco switchs will default to 100/half if the connected computer is forced to 100/full.

If you can't manage the speed/duplex on the switch, then you should set everything to auto. With everything set to auto, if the duplex is not correctly negotiated, you probably should be looking at updating the firmware, contacting the vendor, or replacing the switch.

There is no half-duplex in GigE - so set them to 1000-auto (its the same as 1000-full), also being GigE ports they should Autoneg perfectly fine removing the need to hardcode them at 1000, the days of vendors ended with GigE, Auto negotiation is a requirement for using 1000BASE-T according to the specs - as GigE works in a Master/Slave setup and they have to negotiate that. Why are you having to hardcode their speeds ?