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VSM's AI Engineer, Alex offers recommendations for resolving issues on each tab. 
Endpoint Data Summary dashlet
VLAN Panel
Stream data is presented by Subnet or IPNR or DHCP Server.
Most commonly:
- all endpoints in a given subnet are in the same VLAN.
- all endpoints in a given IPNR are in the same VLAN or group of VLANs
- all endpoints using a given DHCP are in the same VLAN or group of VLANs
VLAN Panel – DHCP tab
Network Panel
Voice degradation can be caused by incorrect Ethernet configuration or negotiation. Best practise has ethernet settings set to auto-negotiation, ethernet speed is 100 Mbps or 1 Gbps and Ethernet Duplex is full. Half duplex will most certainly cause issues, even when there is no contention with other applications for bandwidth. 
Network Panel - Subnet tab
Protocol Panel
In some cases voice degradation is caused by incorrect 802.1Q configuration. Best practice is priority 6 for signalling and priority 6 for audio.
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