Hence, did not solve problem. Probably you can add it manually but this option may be hidden in the interface, or may even require command line. Thanks, you have quite some devices added. This degrades overal speed, and probably also signal strength (not sure). Are you sure signal is good? Do you get disconnects with other device? Perhaps try an other channel. Which protocol are you using 802.11a, 802.11b, or 80211g? How is authentication? Only use WPA2. WPA (WPA1) and WEP are insecure.