D-Link DSL-2877AL User Manual page 62

D-Link DSL-2877AL Dual Band Wireless AC750 VDSL/ADSL2+ Modem Router User Manual
5G Multiple WLAN SSIDs
The SSID is name of your WLAN. Try to avoid using standard term, e.g. WLAN, as
SSID.
The DSL-2877AL supports Multiple SSIDs so you can operate several WLAN in
parallel.
Section 3 - Web User Interface Configuration Page 60