URGENT - CUPS 1.3.7 - "recoverable: Network host 'xx.xx.x.xxx' is busy"

[Shannon Adams]

We just migrated from Solaris to RHEL 5 this weekend.  All our printers are working fine using CUPS except for one model.  Zebra QL 320+ mobile/wireless printers.  We can ping the IP and printer-id from the server fine.  But when you try to print a job to it from the command line or a test page from the CUPS interface, the printer status in CUPS shows ""recoverable: Network host 'xx.xx.x.xxx' is busy".

This is a major issue for us as we have lots of these printers.  All other printers - all Ethernet are fine; including Ethernet Zebra printers.

I have tried different drivers, device URI's (socket://xxx.xx.x.xxx and ipp://xxx.xx.x.xxx/ipp/).  Any help are GREATLY appreciated.