try this...

Assume the manual is:
http://www.tenda.cn/uploadfile/downloads/uploadfile/201204/A5-EN.zip

Your Cisco router's inside IP address: 192.168.0.1

1. (Page 30) Change it to, say 192.168.0.2 (you may need to do something in your Cisco router, but let's try not to first)
(Do not forget what's the IPs you've changed from and to!!!)

You probably need to re-login again to 192.168.0.2 (your Tenda's new IP address)

2. (Page 43) Disable DHCP

所有跟帖： 

• 下載了該說明書，把Lansetting 中Tenda router 從192.168.2.1改成 192.168.0.2,並在D -lmjlmj- ♂ (259 bytes) () 04/27/2012 postreply 12:35:55

• 我支了個臭招。。。 -slow_quick- ♂ (513 bytes) () 04/27/2012 postreply 13:03:27

• 還是謝謝你。等家人不用網時我試試Cisco。 -lmjlmj- ♂ (0 bytes) () 04/27/2012 postreply 13:22:34

• Model DPC 3825 DOCSIS 3.0 Gateway -lmjlmj- ♂ (0 bytes) () 04/27/2012 postreply 13:23:58

• Switch這招好像走不通 -slow_quick- ♂ (52 bytes) () 04/27/2012 postreply 14:02:48

• 回複：下載了該說明書，把Lansetting 中Tenda router 從192.168.2.1改成 192.168.0.2, -slow_quick- ♂ (273 bytes) () 04/27/2012 postreply 13:18:33

• 看來，為了用外網地址，實在不行就放棄tenda，換camera天線，從現在2dbi 換成 7dbi -lmjlmj- ♂ (0 bytes) () 04/27/2012 postreply 12:46:50

• 這也許更簡單，先試易拉罐什麽的:} -slow_quick- ♂ (0 bytes) () 04/27/2012 postreply 13:05:37