Welch Allyn Network Installation Best Practices Overview - Installation Guide - Manual (Page 7)

2
Best practices
Required network settings and configurations
These configurations and settings are required to establish a durable connection between
Welch Allyn devices and the wireless network. Failure to comply with these requirements
will result in a failure to connect to the network, repeated disconnects or extended loss of
telemetry data. Requirements in this section can be modified by requirements listed in
the appropriate vendor-critical requirements documents.
Critical for all Connex products
Best practice Affected types Without best practice
Authentication/encryption WEP 64 and 128, WPA2 Personal,
WPA2 Enterprise (EAP-TLS, EAP-TTLS, EAP-PEAP [MSCHAPv2]) Wireless Other encryption methods not supported. No
connectivity.
Channel advertisement WLANs using DFS channels must
broadcast their SSID Wireless The radio will not connect to DFS channels if the SSID
is hidden.
Channel Switch Announcement (CSA) Disable Wireless When CSA is enabled, data loss when changing
channels may occur.
DHCP leases Must be renewable Wireless and
wired Connections are lost when the lease expires (forced
reconnect).
Interference Signal to Noise Ratio (SNR)
15dB
Wireless High noise level causes dropped packets.
IP address assignment Must be performed through DHCP (DHCP
fixed to MAC is acceptable) Wireless and
wired The device cannot connect to the network without an
IP address.
Signal strength First wireless signal: RSSI Value
-65dBm for (802.11a APs set to 25mW)
Wireless Dropped packets and loss of connectivity due to poor
wireless coverage.
SSID name Maximum length of 16 characters Wireless The radio cannot be configured.