We've recently implemented 802.1X on phones and switches and it's been going good. Recently, though the following scenario has happened more than a few times and I don't know why it's happening.
good working phones at the same location get moved due to the employees moving and sometimes the phone won't boot backup. I get port access failure. Now there is no issue with the port but when I look at our ACS server it shows me that the username the phone is using trying to authenticate reverts to a "&" Has anyone else experience this before? I'm not sure if the phones only keep the settings for so long than default to this or maybe it's just flaky and this is what happens. Once i delete the 802.1x settings in the phone and re-enter the correct username all is well. As far as I know, no working phone has suddenly stopped authenticating but it does worry me that one day I might walk in and have 100 plus phones all need to be manually programmed again.
Thanks,
