What This Category Covers
Wireless and switching issues need separation between RF association, authentication, VLAN tagging, DHCP, uplink trunking, firewall interface rules, and client isolation.
First Layer to Isolate
Association/authentication first, then VLAN/DHCP/gateway/firewall path.
Useful Tools, Logs, and Portals
- Controller/AP logs
- Switch port profile
- VLAN tagging config
- DHCP scope
- Firewall interface rules
- Client signal/auth status
Before You Escalate
- SSID/VLAN identified
- Client receives expected IP/gateway
- Switch/AP profile compared
- Isolation/firewall rules checked
Articles in This Path
Pick the closest symptom and work from there.
Conference room SSID works until more than twenty devices connect
Field Summary
Conference room SSID works until more than twenty devices connect is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
Wireless clients authenticate but lose internet after roaming between access points
Field Summary
Wireless clients authenticate but lose internet after roaming between access points is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
Wi-Fi authentication succeeds but network policy places device in wrong VLAN
Field Summary
Wi-Fi authentication succeeds but network policy places device in wrong VLAN is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. Start with the exact sign-in attempt and policy result; password resets without log evidence often create a second problem.
SSID visible but authentication fails for only one security group
Field Summary
SSID visible but authentication fails for only one security group is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. Start with the exact sign-in attempt and policy result; password resets without log evidence often create a second problem.
Loop detected warnings after moving conference room switch
Field Summary
Loop detected warnings after moving conference room switch is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
VoIP phones lose power after switch firmware upgrade
Field Summary
VoIP phones lose power after switch firmware upgrade is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
Office guest Wi-Fi captive portal loops forever
Field Summary
Office guest Wi-Fi captive portal loops forever is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
New switch stack forms but VLAN tagging is inconsistent
Field Summary
New switch stack forms but VLAN tagging is inconsistent is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
Wireless clients roam but lose Teams audio during handoff
Field Summary
Wireless clients roam but lose Teams audio during handoff is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.
Wi-Fi connected but no internet on only one laptop
Field Summary
Wi-Fi connected but no internet on only one laptop is a Wi-Fi & Switching ticket where the visible symptom can be misleading. Network tickets should be split into link, IP assignment, DNS, route, VLAN/firewall policy, and application reachability. Green status on one layer does not prove the path works. The fastest path is to identify which layer changed and prove it with logs or a repeatable test.