Hi Matt,
It is admin and serial number of one of the IAP's in the cluster.
This is already mentioned in the "Best Answer" for this question. Did you tried that?
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Florian Baaske
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Original Message:
Sent: Jan 12, 2021 01:59 PM
From: Matt Ervin
Subject: AP 515-RW default credentials
(blank) and admin
admin and admin
blank and MAC
or admin and MAC
Nonve of those 4 seem to be valid any longer as of Jan 2021
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Matt Ervin
Original Message:
Sent: Sep 12, 2019 05:09 AM
From: Colin Joseph
Subject: AP 515-RW default credentials
The password has been changed to the serial number for the AP. Please see here: https://www.arubanetworks.com/techdocs/Instant_85_WebHelp/Content/instant-ug/prov-iap/login-to-iap-ui.htm