Please double-check your version. If you are really running ClearPass 6.1.x, that's unsupported for years already.
If you are on ClearPass 6.11, OnGuard on Windows ARM seems to be supported. However connecting to the WiFi is not supposed to be related to OnGuard. But if the client itself does not connect to the WLAN, it's expected that Onguard will not do anything either as it needs network connectivity to operate.
Please reach out to HPE Networking TAC to get this investigated. If you have made your SSID hidden, try without the hidden SSID as there are known issues with some clients not connecting to a hidden SSID, roaming issues or delays when connecting, which is client related.
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Herman Robers
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If you have urgent issues, always contact your HPE Aruba Networking partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact HPE Aruba Networking TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or HPE Aruba Networking.
In case your problem is solved, please invest the time to post a follow-up with the information on how you solved it. Others can benefit from that.
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