ISP Cisco Cable Router (2.4GHz) and ASUS (2.4GHz and 5GHz)


I thought I had a double NAT problem, online somewhere it said go into Bridge Mode, CSR said the ISP router is already in that mode.

I have a cable router as my ISP, hooked up to a ASUS router (2.4GHz and 5GHz) for the house. Have 10 devices on the ASUS. On the Cisco ISP router, I got my Desktop computer in port 2 running to my Ethernet port on the back of my computer, and ASUS in port 1 which goes to the blue input port on the ASUS. I turned off the WiFi on the Cisco router.

The question I have is how can I log into my ASUS router when hard-wired into port 2 on the CISCO router.
CISCO is - ASUS is using port one, Computer is using port two
ASUS is - Can only access this router when connected to it via WiFi.

Well I am connected to both now - the WiFi on the ASUS and hardwired to the CISCO.
I have both routers open. ASUS and Cisco
This problem seems to be artificially solved.


An other issue - I am trying to use ASUS AiCloud 2.0 and USB Application. I want to be able to access this computer anywhere in the world with an internet connection. Basically in USB Application under AiDisk (Share files in the USB disk through the Internet.) - I cant get past setting up a DDNS and receiving a "" link to access the computer. It says Invalid IP address. From my internet searches I thought this had to do with a Double NAT problem, the solution was to go into Bridge Mode on Cisco. My ISP CSR says Cisco router is already in Bridge Mode.

Do I have a double NAT problem?


DDNS (Dynamic Domain Name System) is a service that allows network clients to connect to the wireless router, even with a dynamic public IP address, through its registered domain name. The wireless router is embedded with the ASUS DDNS service and other DDNS services.
If you cannot use ASUS DDNS services, please go to nslookup for to reach your internet IP address to use this service.
The wireless router currently uses a private WAN IP address.This router may be in the multiple-NAT environment and DDNS service cannot work in this environment.

Seems to be the issue right there. The ASUS router needs to see the internet, and it cant behind the CISCO router.
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My Computer

System One

  • Manufacturer/Model
    HP a6745f
    AMD Athlon X2 5050e 2.6GHz 2-Core AM2/AM2+
    MSI - MS-7548 (Aspen) Chipset: AMD 780G
    DDR2 - PC2-6400 (800 MHz) with 4GB
    Graphics Card(s)
    NVIDIA GeFroce GTX 650
    Sound Card
    Monitor(s) Displays
    LG 27" LCD
    Screen Resolution
    I dont know
    Hard Drives
    Stock WD 320GB 7200rpm
    120GB Patriot Blast SSD-HD
    Upgraded to 650W from 300W
    stock HP Pavilion
    Logitech wireless
    Logitech wireless
    Internet Speed
    got no clue


Vista Guru
Gold Member
Seems to be the issue right there. The ASUS router needs to see the internet, and it cant behind the CISCO router.

I don't really understand what your problem and what you are trying to do/have done with your netowrk nor have I used this Asus software however I can answer this. You issue isn't that you don't have internet access but that you have an ip address that isn't public. You are getting your ip address from your service provider who has a public address. So your service provider has at least one server between you and a direct ip address on the internet (or public ip address). This is because ip v 4 which is still heavily in use has no where near enough possible ip addresses to handle all of the devices so they started giving only the most important devices a public ip addresses. The rest of us get private ip addresses. To get around that you either need to have your service provider forward connections to your router (good luck with that) or find a software company that will host a connection to your computer over the internet for remote access. In the past I have used logmein to do just that however they are no longer free. I haven't yet looked into alternatives.

My Computers

System One System Two