Question about Symbol AP-2411-5AZL-01 Network Adapter

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Timing out I have two Spectrum 24 AP-2411 access points in my warehouse that talk to Symbol RF bar code readers models 3840s and 6840s. I use the pre-802.11 'spring' protocol and this set up has worked very well for years. Since Febuary 2007 I have been having 'timed out' issues on the warehouse floor. After logging into the reader the user does their job and places the reader down. After a small time frame, 5 minuets or so, the user goes to the reader again and the unit will not connect to the 2411 access point. The unit will time out and the two ways to reconnect are to, 1.) reboot the unit (reader) or 2.) wait an undetermined amount of time. (20 min.+, the readers will connect eventually, but most of the time the just log off) I use a static IP address in all my bar code readers and the two access points. I have timed the response from reader to access point and have seen the time to live go over 2000ms. I have been trying to swap different access points in (I have back ups and another warehouse where this problem is not happening) but nothing has worked yet. Again the problem is when a reader goes idle. If the gun is logged off it will connect with no problem. The problem has even happened while the user was in the middle of a transaction. For no good reason, the reader will lose connection with the access point, but this is very rare. If anyone has ever dealt with trouble like this I could sure use a helping word. Thank you, Brian Silcock

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Hi, the units I dealt with were in a restaurant environment to their loading dock. Somewhat similar situation. During the day it would cut out whenever, or not connect at all between 11 and 2. After a LOT of investigation, came to find they installed a new microwave in the kitchen area. When they were using this unit the signal for the wireless was being interfered with and it was really busy between 11 and 2. The solution was to move the microwave. Have you installed ANYTHING new? microwave, radio, phones, intercoms, TV?Did a neighbor put something in?to test just unplug and see what signals you get. And just to let you know, when you start your unit, you get a fully function connection, when it sits idle sometimes it will drop to half duplex. Didn't figure that part out.

Posted on Oct 04, 2007


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