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My JetDirect Printer is not able to receive packets larger than 1 KB

Last response: in Networking
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August 30, 2013 2:26:27 PM

My Jet Direct Printer is not able to receive packets larger than 1 KB... I was able to test the communication with MetaPing (awesome application). I have never seen a restriction on packet size. Is this normal? I have an application that has communication problems with a printer and I have tried for over a month to fix this issue from within the label application and printer settings. The label software company insists it's a network issue, and I can't help but think they're right.

Ideas?

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August 30, 2013 2:30:02 PM

have you tried putting it on another IP?
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August 30, 2013 2:31:20 PM

I'll try that next week. I don't see how that might help, but hell -- I'll try anything at this point.
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August 30, 2013 2:32:38 PM

never know, easiest thing to try. could also be a bad nic, or bad internal memory.
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September 6, 2013 12:22:27 PM

So I am running Wireshark on the offending server that is sending to the Label Printer's Jetdirect print server. I would love a network expert to analyze this:
55614 > Printer [SYN] Seq=0 Win=8192 [TCP CHECKSUM INCORRECT] Len=0 MSS=1460 WS=8
Transmission Control Protocol, Src Port: 55614 (55614), Dst Port: printer (515), Seq: 0, Len: 0
Checksum: 0x145e [incorrect, shoudl be 0x8e72 (maybe caused by "TCP checksum offload"?)]
Bad Checksum: True

55616 > hp-pdl-datastr [SYN] Seq=0 Win=8192 [TCP CHECKSUM INCORRECT] Len=0 MSS=1460 WS=8
Transmission Control Protocol, Src Port: 55616 (55616), Dst Port: hp-pdl-datastr (9100), Seq: 0, Len: 0
Checksum: 0x145e [incorrect, should be 0xbabd (maybe caused by "TCP checksum offload"?)]
Bad Checksum: True


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September 9, 2013 12:16:56 PM

Somehow packets were being lost due to NIC Teaming on the host machine. My issue was resolved by removing the NIC Teaming. The other VMs are slower now over the network, but the Printer works without delay.
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