Can you use ipconfig /all on your Windows? That will include the DHCP server information. Do you have a DHCP server in that VLAN that offers IP addresses in the 10.2.80.x range?
If there is no DHCP server in a VLAN, Windows may have a static fallback IP, and that may be what you see. Wireshark running while you disconnect and re-connect the client should also show where the IP is coming from.
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Herman Robers
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If you have urgent issues, always contact your Aruba partner, distributor, or Aruba TAC Support. Check
https://www.arubanetworks.com/support-services/contact-support/ for how to contact Aruba TAC. Any opinions expressed here are solely my own and not necessarily that of Hewlett Packard Enterprise or Aruba Networks.
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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