Hi Adel, have a look here (URLs of years ago are not valid anymore, for various reasons), I believe you need to sign-on into that portal.
Example:

Latest HPE OfficeConnect OC20 Release Notes - published on March 2018 - available on ASP (now migrated into the new HPE Networking Support Portal) - attached here - points me to the OC20 1.2.0 firmware file OfficeConnectPortal_OC20_1.2.0_64023 (released 16-03-2017) then nothing new was published (from what I'm able to see, guys please correct me if I'm wrong).
HPE OfficeConnect Wi-Fi Portal App was 1.4.1.
I'm not sure that currently HPE OfficeConnect OC20 could be supported through the Aruba InstantON community: it was indeed an HPE product now EoL. In any case asking questions on that community shouldn't be an issue at all and there could be educated guests helping you.
Edit 1: I was not able to find any personal reference about that 1.2.1 I reported about five years ago.
Edit 2: the OC20 is EoLS, see below table (EoS and suggested replacement product):

Original Message:
Sent: Jun 09, 2025 04:57 PM
From: Adel AbdelFattah
Subject: Office Connect OC20 apl error
Thanks for your helpful post about the OC20 firmware. I'm facing the same issue - I have several OC20 units but can't access the firmware anymore.
I'd be really grateful if you could help me out or point me to where I can find it. I'd love to keep using these devices.
Thanks a lot in advance!
Original Message:
Sent: Apr 17, 2020 08:17 AM
From: parnassus
Subject: Office Connect OC20 apl error
Hi, not sure if your issue is exactly the one I've in mind...but have a look here (Read the Attention note about new HPE OfficeConnect OC20 Access Point Firmware 1.2.1).
