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Remove/disable guest/open SSIDs; broadcast only essential SSIDs.Enforce strong authentication (802.1X where possible; otherwise WPA3/WPA2‑AES).Isolate MR42s on a dedicated VLAN/firewall zone; restrict management access to specific jump hosts/IPs.Hard...
If only that single laptop is roaming while other clients are stable, the root cause is very likely client-side. Test the same user on another known-good laptop/NIC at same location.Test the affected laptop at a different location with stable APs (...
This may helpfull to you -https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/hw/n9348gcfxp_hig/guide/b_c9348gc-fxp_nxos_mode_hardware_install_guide/b_c9348gc-fxp_nxos_mode_hardware_install_guide_chapter_010.html
