|All ports are set to half duplex |
All ports, both on the switch and on the client end should be left on "auto". Chances are it's the half duplex setting causing the lockups.
Walked through multiple configs with netgear switch engineer and they sent me a new switch and still have this problem.
After the above exhaustive troubleshooting my first guess would be it's the clients (ie: the printers and computer).
Try this, take a computer that's plugged into the same switch and working properly. Plug it into one of the ports that didn't work correctly with one of the other devices plugged into it and see if it doesn't work fine. If it does, that means it's not the switch, it's not the switch port, it's the device plugged into the switch that's the issue.
On the problem PC, check the NIC settings and make sure it's set to "auto" for speed. If it isn't, and you make it so, and it begins working properly, you've fixed that issue.
The printers may not be so easy to fix depending on the Make/Model of the printers. But, you should be able to set them to "auto" as well.