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M-W
Occasional Contributor II
Posts: 14
Registered: ‎04-25-2012

Airprint - AOS 6.3.1.6

Hi All,

 

We're in the middle of deploying Airprint using AOS 6.3.1.6, with AirGroup enabled. We've had mixed results in our testing since going live. Initial tests were successful, but after time we'd find the dedicated printers were no longer available for selection to various iOS devices.

 

Upon checking the Airgroup section on the Dashboard the printer was no longer displaying a hostname, just two dashes. We have our printers in a dedicated user role, plugged into AP-93H's, and when we disable then re-enable the wired port, the printer hostname comes back and on most occasions we can then print again.
.

We are not using Airgroup domains, we're just trying to establish Airprint for all users who share the same local controller as the wired printer.

 

Any experiences or advice would be appreciated.

 

Regards

 

Matt

MVP
Posts: 288
Registered: ‎08-27-2012

Re: Airprint - AOS 6.3.1.6

Are these by chance HP printers? I and a few others have encountered a bug that TAC confirmed. In our case after a period of time (30 minutes I believe) the device was no longer discoverable by devices. I haven't checked to see if it's resolved in 6.3.1.7.
ACDX #419 | ACMP |
Guru Elite
Posts: 21,022
Registered: ‎03-29-2007

Re: Airprint - AOS 6.3.1.6

Bug 96236 in the ArubaOS 6.3.1.7 Release notes

 

"

Symptom: An Apple TV got dropped off from the AirGroup server list as the device got deleted from the controller cache table due to expiry of mDNS address record (A or AAAA). The fix ensures that the device is deleted from the controller cache table only if the IP address of the device matches with the expired mDNS address records (A and AAAA).

Scenario: When an Apple TV acted as a sleep proxy server for other mDNS devices connected in the network, it advertised the address records and services of these mDNS devices. When the advertised address records of the sleeping device expired , the apple TV that acted as the sleep proxy server got deleted incorrectly. This issue is not limited to any specific controller model or ArubaOS version. "

 

Please upgrade to 6.3.1.7 and see if you still have the same issue.



Colin Joseph
Aruba Customer Engineering

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M-W
Occasional Contributor II
Posts: 14
Registered: ‎04-25-2012

Re: Airprint - AOS 6.3.1.6

The printers in use are Kyocera. I'm going to test 6.3.1.7 today in our lab environment to see if it improves things.

 

cjospeh - Is there a way for us to see if this bug is affecting our scenario? Are there any show commands that we could run which would highlight this?

Guru Elite
Posts: 21,022
Registered: ‎03-29-2007

Re: Airprint - AOS 6.3.1.6

[ Edited ]

The symptom is like you described - The name of the printer would be replaced by other characters or another name that is usually another mac host in the network that is on the same subnet.  If you upgrade it should stop.  That is the main symptom.  We have really only seen this problem with Apple TVs, but we do not hav enough information about if it has been seen with printers;  If the name is being replaced by another, that is the biggest thing.

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

M-W
Occasional Contributor II
Posts: 14
Registered: ‎04-25-2012

Re: Airprint - AOS 6.3.1.6

Thank you for the quick feedback. We have tried extending the idle time out in the user role, which helped the issue, but obviously this just prolongs the issue (we set it to 30mins for testing purposes).

 

I'll try the upgrade in the lab and see how we get on.

Guru Elite
Posts: 21,022
Registered: ‎03-29-2007

Re: Airprint - AOS 6.3.1.6

I am not sure the idle-timeout should help if you are running into the situation that is fixed in the bug.  One device sleep-proxies for another device that has wake-on-demand enabled and the record is replaced.  When we try to refresh the printer, the record is replaced by the new device and we no longer advertise information for the previous host.  

 

Information about bonjour sleep proxy is here:  http://support.apple.com/kb/ht3774   Essentially if you have a mac on the same subnet that has wake-on-demand enabled it will do that.  Normally if the record is replaced, it is replaced by the name of the device that has wake-on-demand enabled.  Turning off wake-on-demand on that mac should fix the issue without upgrading.   

 

The fix does not allow the record to be replaced for a printer or other Airgroup servers by a mac that is configured with wake-on-demand...

 

I am not sure that is what you are encountering, but based on your symptoms, that is my best guess..



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

M-W
Occasional Contributor II
Posts: 14
Registered: ‎04-25-2012

Re: Airprint - AOS 6.3.1.6

Your suspicions were correct. I upgraded to 6.3.1.7 and tested, after the default 10min idle timeout the Airprint server was removed from the list. I then tried to connect to the printer again and experienced the same problem, so it does not appear to be related to this bug.

Guru Elite
Posts: 21,022
Registered: ‎03-29-2007

Re: Airprint - AOS 6.3.1.6

Okay.  Is the printer wireless?  If so, what type of authentication is used?

 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

M-W
Occasional Contributor II
Posts: 14
Registered: ‎04-25-2012

Re: Airprint - AOS 6.3.1.6

No the printer is connected via a wired port on an AP-93H using MAC authentication

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