Group-Based Access is the correct authorization model for this scenario. In Aruba Central, devices are assigned to groups, and administrator access is granted based on these groups. By creating groups for each geographic region and assigning the corresponding devices, you can then create roles that limit administrator access to specific groups, effectively achieving the required location-based management segregation.

Consistently high channel utilization (above 85%) is a strong indicator of RF congestion and co-channel interference, which directly causes client performance issues like intermittent connectivity. The first logical step is to use Aruba Central’s diagnostic tools, like the RF Planning heatmaps or spectrum analysis (if supported), to visualize the interference and make informed decisions about channel adjustments or power settings, rather than assuming hardware failure or making unrelated configuration changes.

The `show central` output explicitly states the reason for disconnection is a ‘DNS resolution failure.’ The switch uses DHCP and has obtained an IP, gateway, and a DNS server (8.8.8.8). For the switch to establish a secure tunnel to Aruba Central, it must resolve the fully qualified domain name (FQDN) of the Central servers (e.g., `apigw-uswest4.central.arubanetworks.com`). If the configured DNS server (8.8.8.8) cannot resolve this specific corporate FQDN—possibly because it’s an internal domain or requires internal DNS—the connection will fail. The issue is specifically DNS, not general IP connectivity.

This approach correctly uses the right tool for each requirement. Immediate, actionable faults like a core switch going down are best handled by real-time Alerts with critical severity notifications. Compliance tracking, like firmware versions, is a periodic audit task perfectly suited for Aruba Central’s Reporting feature, where you can schedule a daily or weekly report to be generated and emailed. Creating a critical alert for a non-critical, non-real-time issue like firmware compliance would cause alert fatigue.

When ‘Redirect using IP Address’ is enabled in the Guest Access configuration, Aruba Central provides a public IP address to which client traffic is redirected for captive portal authentication. This IP must be allowed through the corporate firewall (for HTTP/HTTPS traffic). If it’s not whitelisted, the redirect packets are blocked, causing the portal timeout error for users. This is a common oversight in deployments where firewall policies are tightly controlled.

For a device to be successfully claimed from Aruba Activate into Aruba Central, its software version must be compatible. The version on the switch must be a version that is both supported by the Central instance (e.g., Central vs. Central Gov) and listed in Central’s firmware synchronization. If Central does not have that specific version in its catalog, the claim will fail. Verifying and potentially upgrading/downgrading the switch OS to a synchronized version is a critical step.

The Group Clone feature copies the configuration defined at the group level. However, if the source group contained device-specific configuration overrides for individual switches or APs, those overrides are not cloned to the new group. The new ‘Remote-Warehouse’ group starts with only the base group-level settings. Any unique port configurations that were applied as overrides in the original group would be missing, explaining why they are not applying to devices in the cloned group.

Aruba Central Insights breaks down application latency into components. ‘Wi-Fi Delay’ measures the time between the client and the AP. ‘WAN Delay’ measures the time from the network gateway (after the AP) to the application server. A high WAN Delay coupled with a low Wi-Fi Delay clearly isolates the problem to the network path beyond the local wireless infrastructure—pointing to the internet connection, ISP, or the SaaS provider’s data center as the source of latency.

For a simple IoT network, the goal is segmentation and containment. Assigning the WLAN to VLAN 100 ensures all traffic is placed on the correct layer-2 segment. Enabling the Client Isolation (or Broadcast Filtering) policy prevents the IoT devices from communicating directly with each other, a common security requirement for IoT. Together, these settings ensure devices are on their own VLAN and can only communicate upstream (towards the gateway on VLAN 100), not laterally, meeting the stated requirement without complex tunneling.

Group-Based Access is the correct authorization model for this scenario. In Aruba Central, devices are assigned to groups, and administrator access is granted based on these groups. By creating groups for each geographic region and assigning the corresponding devices, you can then create roles that limit administrator access to specific groups, effectively achieving the required location-based management segregation.0