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Cascade wifi routers or create static routes?

Networking wifi router

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How do I cascade these two routers? 1. netgear wnr 3500Lv2 2. ASUS RT-AC68U 
Alternatively, how do I create a static routes between 2 pcs on different subnets?
See link or attached image for my network diagram https://goo.gl/N5Tsd3
I have two routers to cover my home because the wifi doesn't cut it, I want to go to wires... One is a netgear wnr3500Lv2. This is set as the primary router with DHCP ethernet in from ISP (in the hallway). The other is an asus RT-AC68U. A much better router with good wifi range and features (in the lounge).
The problem is that I have tried to cascade the router but the asus router insists on automatically creating a different subnet. Complains of an IP conflict, even though I made sure to turn off DHCP, set router operating mode and set IP to a free static address on the primary netgear router...
How do get Laptop 1 to see gaming PC?
a) change subnet and cascade routers. Problem see text above.
b) static routing, not sure how to do...
c) other.
Thanks for the help!

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Edited by zasten, 06 March 2017 - 09:19 AM.

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Can the devices on the ASUS get to the Internet OK?


How are you connecting the two routers?   Assuming a wired connection between one of the the Netgear's LAN ports and the WAN port on the ASUS and internet connectivity on the ASUS.   What IP address is the WAN connection on the ASUS? Assume it's a 192.168.1. something.  Let's say it's 


Then to put in a static route on the Laptop you would open an elevated command window on the laptop:


7: Start, All Programs, Accessories then right click on Command Prompt and Run as Administrator.

XP:  Start, All Programs, Accessories then Command Prompt


Then type with an Enter after the line:

route -p add MASK

You can test it with 




This should give you 4 successful replies followed by:

Ping statistics for
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 7ms, Average = 4ms
You can also do:
netstat -rn
which should show you:
Persistent Routes:
  Network Address          Netmask  Gateway Address  Metric       1

You shouldn't need a static route on any of the ASUS devices as the ASUS will just send all non local traffic up the pipe to the netgear.


It would be wise to assign a static ip on the WAN side of the ASUS so that if you lose power it will always use the same IP.  Since the Netgear assigns ip address from the bottom of the range use something in the upper range say   

On the Asus:

1. From the navigation panel, go to Advanced Settings > WAN >
Internet Connection tab.
2. Configure the following settings below. When done, click
• WAN Connection Type: Choose your Internet Service Provider
fixed IP. then put in
• Enable WAN: Select Yes
You shouldn't need to modify the netgear if there's just the one laptop on it but you could put in a static route on it instead of the laptop if you are planning to have friends visiting and using the netgear wireless to connect to the game server or other Asus devices.
On Netgear:
1. Select Advanced > Advanced Setup > Static Routes, and click Add to display the following screen:
2. In the Route Name field, type a name for this static route (for identification purposes only. Say basement)
4. Select the Active check box to make this route effective.
5. Type the IP address of the final destination.
6. Type the IP subnet mask for this destination.
7. Type the gateway IP address, which has to be a router on the same LAN segment as the N300 Wireless Router. 
8. Type a number between 1 and 15 as the metric value. 1
9. Click Apply to add the static route.

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