Impinj SPeedway R420 Connection issue

[Tim Irvine]

Here is the situation:

  I bought a used Impinj Speedway R420 off ebay. At first it would not connect no matter what I did (Art, Putty or browser). So I reset it to factory and it connects to Art just fine and I got into it via browser and putty. But only when I only connect the Impinj directly to the PC. 

When I connect the wireless router I use it will not connect period. (yes I tried multiple cables too)

I bought a TP Link switch and at first it wouldn't connect through the switch.

I used putty to change the IP from dynamic to static and from .1 to .7. I figured that was far enough away from .1 to avoid the IP getting handed out to another device.

Now, I can connect via the switch, or directly, but still not through the router, even when it is the only thing connected to the router. When I connect it to the switch and add a second reader, (FX9500), the 9500 will connect, but not the Impinj.

I can't seem to ever get the Impinj to connect with any other reader at the same time.

I am getting all the lights so I know it is still seeing it. I even rebooted the Impinj using the browser interface while having the 9500 also connected when connected tot he switch.

All 3 of my 9500's and my 7400 are setup for Dynamic IP. I only changed the Impinj to static hoping it would solve the conflicts I am assuming I am having.

I am a little outside my lane on this one now, so I thought maybe some of you networking gurus might have a tip or two you'd like to share that I could try on this. I would certainly appreciate it.  Thanks so much!! Tim

[Ted Finch]

Tim

I would recommend that you timing pc and all readers use fixed IPs and are all on the same sub net e.g 192.168.10.xxx

Set these yourself and you know what is what. If you use multiple readers then you will probably only need a switch not a router. Connect the PC to the switch by cable too. 

If the router is used for anything else e.g. routing to the wider internet then use a separate connection for this.

Make sure the router is set to use a different subnet e.g. 192.168.20.xxx. 

A PC can cope with two different net connection normally but Windows does do some strange and unhelpful things at times as it thinks it knows best.

Also you may need to configure your kiosk, if used, to be on the timing subnet too. Again a fixed IP. Connect via the switch.

If you feel you must use the router for the readers then set it to be on the same subnet as the readers fixed IPs and configure the router to serve IP addresses different from the range you have chosen for the readers.

I hope this helps.

Ted

Keep it Simple Timing

[Eric Fritz]

I've bumped into this just a little but I agree that fixed IP's is probably your best plan.  From what I'm seeing, it looks to me like each reader has it's own setup to be a DHCP Server, set it's own IP address but also provide your laptop with an IP that matches the network that the reader has setup.   It seems that some (most likely all those from the same "brand") have a similar setup and probably even can detect each other and "turn off" the other DHCP Servers or some how make one the primary.  The problem arises when you have different DHCP servers all trying to configure your ethernet port to be a different ip address in a different subnet.

But... this is all conjecture on my side based on my 1990's version of networking knowledge and I've not tried any of it as of yet.  (although I do have both a zebra and an impinj to play with now... just no time to play ;) )