Ticket barcode scanning Issue--freezing up and "Working........." is displayed

This post is also in the Tessitura Network Technical Forum.

Greetings:

We are running Tessitura version 12.0.3 in a RAMP environment, using Motorola scanners (model MC55) running NSCAN version 5.31.00 and have four locations where the barcodes on our tickets are scanned before show time, with up to 3 scanners at each location, and are having ticket scanning issues.

I want to find out what causes our MC55 ticket scanners to freeze / hang  a mostly white screen except for the message     "Working.........." 

After the  "Working......" displays on the scanner for 3 to 45 seconds,  one of two things happens-->

1)  the screen displays the error message, "Cannot Access Server"    Or

2)  indicates the ticket has successfully scanned and it's ready for another ticket

Has anyone else seen this issue with Motorola ticket scanners?  I would like to  know the cause, but Need to Know how to prevent this.

Thanks in advance for your help!

Laura