Touchstar Boston 8500 Handheld Scanner Disconnecting

[julius_kisieli1]

Hi all,

We have quite 40 Touchstar Boston 8500 (http://www.touchstar.co.uk/product_mo...) Hand Held Barcode scanners that connect via ZoneFlex 7352 controlled by a Smart Standby Zondirector 1100 to our network.

We have just started testing and what we have found is that the hand held units seem to "disconnect" from the network at random intervals (5-60 minutes) all sleep and power setting are either off or on max. The hand held still has an IP address but the device can no longer access the LAN or can be pinged from any machine within our network. To reconnect we need to put the device in standby mode and then switch it back on, this effectively restarts the network card.

The WLAN card that the handheld has is a Summit, I have found a setting that I thing may be responsible for the drop off's as it may interfere with what the ZoneDirector is trying to do: http://www.summitdata.com/Documents/G...

Agressive Scan is a feature in Summit WLAN cards that actively looks for better Ap's and try's to connect to them, from my understanding the ZoneDirector will transfer the device between Ap's? Would this be culprit?

Any help appreciated.

Thanks,
Julius

[primoz_marinsek]

OK. I'd be interested in solving this. We have a few projects on the horizon for bar code scanners.

[julius_kisieli1]

We have dropped the power of the AP's to -4Db, we have also tweaked the settings on the network card we set "Roam Trigger" to -55dBm, "Roam Delta" to 10dBm and "Roam Period" to 5 sec. But in my opinion this is all down to the wireless cards of the handhelds. We did the exact same test to the devices and iPhones / Samsung Galaxy's and laptops and the results were as you would expect them to be. I would steer clear of Taouchstar Kit, we have some Intermec's and they have been working 100%.

[primoz_marinsek]

OK. So the problem is solved 🙂

[julius_kisieli1]

Not so much solved but manageable, after a lot of tweeking and fiddling. This should not happen on a wireless network with handheld scanners, which are in fact glorified mobile phones with scanners.

Thanks for all your help and suggestions 🙂

[primoz_marinsek]

You forgot something. They are glorified mobile phones with scanners that run Windows mobile 😐