Networking Issue - Possibly GPSU21 / Switch / DHCP ?????

[TRCDROM]

I have an IOGEAR GPSU21 printserver (1 port / usb).

I am having a problem and I cannot seem to identify what the problem is or how to resolve it. I will provide all of the symptoms below. Any assistance will be greatly appreciated.

1. Using Windows 7 (64 Bit)
2. Firewall off
3. Printer is HP 1320 Laser Printer (supported by GPSU21)
4. IOGear GPSU21 Printer Server
5. DHCP from Cable Modem
6. Plugged into cable modem is a GS108 Netgear switch
7. Without the print server everything is working OK – Computer gets it IP address from DHCP and is working correctly
8. About 45 seconds after I plug in the print server I notice that lost network connectivity with from the computer – when I unplug the print server connectivity comes back
9. I tried setting up DHCP to give out addresses from a.b.c.100 – a.b.c.125 and then gave a static address to my computer a.b.c.25 – nothing different
10. I tried different ports on the switch

I am not sure where to even start troubleshooting this. I called IOGear and they told me that someone will get back to me in 24-48 hours. They have never seen this before.

I am not going to hold my breath for a solution from them (except if they want to replace the device)

Any assistance will be greatly appreciated.

 

[spidey07]

That print server is doing a packet/broadcast storm, or possibly running proxy-arp (it really shouldn't be, but a guess).

Can your computer ping the default gateway when the problem exists? Also do command "arp -g" and look at the mac address of your gateway and see if it matches your router.

 

[TRCDROM]

I can't do anything. I am knocked off the network. My computer is showing no network connectivity

 

[brandonmarker]

I am having this exact same issue. The print server worked fine for years and all of a sudden started doing this. I replaced the print server with the exact same model. once I setup the new one, It worked for about 3 hours then all computers on the network went offline.

 

[brandonmarker]

I can't do anything. I am knocked off the network. My computer is showing no network connectivity

Did you end up finding the issue?? This would really help me

 

[fkoehler]

Funny how no one ever comes back after asking for help. My guess is not anything mysterious or arcane, just cheap hardware being cheap.