One SRW2016 fresh out of the box and set to factory default settings
One Dell Laptop running Windows XP
One custom network appliance running a full TCP/IP stack but limited to 10M half duplex.
The laptop has a static IP address. The network appliance has a static IP address. The switch has the factory default static IP address. All three devices are on the same subnet.
The laptop is plugged into port 1 on the switch, and the network appliance is plugged into various ports as described below. The laptop is set to continuously ping the network appliance using the ping –t command.
When the network appliance is plugged into switch port 2 I am unable to ping the device from the laptop. When I plug it into port 3 I get the same result. In fact I am unable to ping the network appliance on any of the switch ports EXCEPT for ports 7, 8, 15, and 16. As soon as I plug the network appliance into any one of those four ports, the pings are replied to.
My question is - why am I unable to communicate with the network appliance on any ports other then ports 7, 8, 15, and 16? What makes these four ports different then the others?
I have a second Linksys SRW2016 and notice the exact same behavior.
I’ve also tried a Linksys SLM2008 8-Port switch and experience NO communication problems on any ports.
I’ve tried a hub and it works 100%
I notice that after trying to ping the network appliance on a non-working port, I can see the device properly listed in the ARP table on both the switch AND laptop. So I am unable to ping the device yet it somehow makes it into the ARP table.
Any help with this issue would be greatly appreciated.