Draytek Vigor2110 Series User Manual page 206

Enable Wireless LAN
Mode
Vigor2110 Series User's Guide
Check the box to enable wireless function.
At present, the router can connect to Mixed (11b+11g),
11g Only, 11b Only, Mixed (11g+11n), 11n Only and
Mixed (11b+11g+11n) stations simultaneously. Simply
choose Mix (11b+11g+11n) mode.
Note: You should also set RADIUS Server
simultaneously if 11g Only, 11b Only or 11n Only mode is
selected.
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