Sounds like a compatibility issue between DD-WRT with your tablet. Try 802.11n only mode.

Sometimes it need to wait some minutes for the reflesh as it is a periodic task. But if it still not functioning no matter how long you wait, it could be a bug, report it via...

Alternative rules with other outbound ports WAN IP: 6021 <==> NAS'IP:21 WAN IP: 6022 <==> NAS'IP:22

Reset the router, re-configure it with a new SSID

josh1979 wrote thanks for the reply fotodomaris, i've already changed the ip and still the same..no problems with the laptops only android phones cannot connect to the AP.. anybody can help plsss.....

Hi, could you screenshot the TD-W8970's status page and WAN settings page?