Hi all,
First off, I am in the process of getting TAC and opening a case, but thought I'd throw this out and see if anyone has seen the same thing and maybe it'll even help someone. My setup has 3 IAP 105s, all attached to the same switch. The switch is unmanaged, and all of my WLANs are on the same (default) vLAN. I have a guest network, and a network exclusively for our old PocketPCs, both of those networks were set to deny Airgroup Access. All my IOS devices are on my main network, we are running an ordering system during a trade show and it is busy. For the first three days, with Airgroup and airprint enabled, printing worked well with few issues. Today, on one of my APs, IOS devices couldn't see printers. Roam back to either of the other two APs, printers come back. All other network services seem to be working just fine, I can see all LAN devices when browsing via that AP, I can get to internet, ping my gateway etc. I decided to turn off Airgroup for a few seconds and reenable it just to see if it would help. While it was off, I noticed that things started working fine again. Keeping and eye on it for now, but printing seems to be working even better than before.
One further piece of info, I am using a Lantronix xPrintserver to share out the printers, as the Airprint printers seem to have trouble with a large volume of printing and the print server smooths things out. The xPrintserver shows up as an airprint device in Airgroup. Also, I have similar setups for multiple clients, that's why I would like some insight on the issue, I don't want to turn it off at all clients based on this single observation unless it is confirmed that this is a valid config. Anyone seen anything similar?