Hello community 👋🏼   I volunteer at a Catholic school with ~1,000 users, helping to manage IT. We've been receiving complaints that some devices lose internet access.   Network Setup:   Firewall: MX450   Switches: MS355   APs: MR56   Infrastructure: Full fiber across 5 buildings   ISP: 2 Gbps fiber (Cox)   DHCP: Windows Server   Authentication: RADIUS   DNS: Cloudflare for student VLAN, local for primary VLAN     Issue Details:   Devices auth successfully and lose Internet on VLANs other than VLAN 1.   After ~5 minutes of idle time, the device loses internet access and cannot reconnect.   This does not affect VLAN 1 (primary); devices on VLAN 1 remain stable.   The only fix I’ve found is refreshing the connection using Ubiquiti’s WiFiMan app.     Troubleshooting So Far:   Tried switching student VLAN to local DNS → No improvement.   RADIUS authentication works fine, so it doesn’t seem like an authentication issue.     Any thoughts on what might be causing this?   Thanks in advance!   ... View more