User Guide

Table Of Contents

TRENDnet User’s Guide

TEW-755AP

Roaming Support (802.11k)

System > Wireless 2.4GHz > Wireless Network

The 802.11k standard is an enhancement to wireless roaming technology. It allows

wireless access points to exchange and learn information about other access points on

the network such as signal strength and client utilization and provide this information to

802.11k capable wireless client devices. Wireless client devices can use the information

about other wireless network and make more intelligent decisions when roaming from

one wireless access point to another. This also assists in better access point client

utilization. Note: This function can only work with 802.11k capable wireless client

devices. Please check your device specifications with your manufacturer for details.

1. Log into your management page (see “Access the management page” on page 13.

2. Click on the System tab, click on Wireless 2.4GHz, and click Wireless Network.

3. Under the Current Profiles section, click Edit for the profile you would like to

configure.

4. Under the Roaming Assistant section, check the 802.11k support option to enable

802.11k support. The Scan Period defines how often the access point will scan for

information about other access points on the wireless network.

5. Click on Save button to apply the settings and then click on the Save/Reload button

located on the top left section to save the settings.

RSSI Scanner

System > Wireless 2.4GHz > Wireless RSSI Scanner

The RSSI scanner feature allows the access point to scan for the signal strength of

wireless client devices that currently connected and configured to automatically

disconnect the wireless devices once signal strength and connectivity reach a specified

limit. In a wireless roaming network with multiple access points, this can assist by

forcing the disconnection of the wireless client device before signal strength and

connectivity to the AP are too low to sustain enough bandwidth for Internet streaming

applications. This will force the wireless client device to connect to an AP strong signal

and connection rate relative to it’s new location. It is the nature of wireless client

devices to maintain connectivity to the currently connected wireless network as long as

the signal can still be discovered.

In the example diagram, you can see that the further away the client device is from the

AP, the lower signal strength. (-30 RSSI is a higher strength value relative the AP

compared to -90 RSSI). The client device at -90 RSSI is closer to the next AP but without

the forced disconnection from the AP on the left using the RSSI scanner function, the

client device would remain connected to the much further AP on the left than stronger

signal AP on the right. Forcing a disconnect from the originally connected AP on the

right would force the client to connect to the much higher signal strength AP on the

right providing better connectivity during the transition between physical locations.