3 ASUS routers are clogging

[mikskov]

My home network is not working optimally, it is slow, obviously due to some non-optimal settings. I'm seeking help to optimise the design and settings.

I have a ZyXEL P2812 home central router connecting to my ISP. Behind this I want to have two separated networks:
- My tenant's network with his own wireless router, not able to access my network and services (NAS, Sonos, etc.)
- My own network with three ASUS RT AC66U routers to cover three floors in the house wirelessly.

My network design as of now:

Especially when I'm connected to 2 and 3 things are really slow. You can feel that data is returned somewhere wrong, you do get internet access but it can take a while.

I assume it is stupid to have DHCP enabled both in the ZyXEL and in router 1, but I cannot put the ZyXEL into bridge mode as then both my router 1 and my tenant's router would seek WAN IP directly. I only have one IP address.

What is wrong here? Thanks everybody for your help.

Mikael

 

[sfx2000]

What switch is between AC66U (1) and the Zyxel (GW)?

 

[mikskov]

What switch is between AC66U (1) and the Zyxel (GW)?

This one: https://www.netgear.com/support/product/GS605av

 

[sfx2000]

With your setup - I'd pull the switch - take Router (1) and make that the ingress, and connect neighbor to it...

Then use AC66U (2) in GW/Router mode, and connect AC66U (3) in AP mode to it...

running on a different subnet helps, but with AC66U (2) in GW/Router mode, it'll keep your network separate from the neighbor.

 

[CaptainSTX]

Be sure you are using different WiFi channels on each of your three routers. Also try to coordinate channels with your neighbor.

 

[mikskov]

With your setup - I'd pull the switch - take Router (1) and make that the ingress, and connect neighbor to it...

Then use AC66U (2) in GW/Router mode, and connect AC66U (3) in AP mode to it...

running on a different subnet helps, but with AC66U (2) in GW/Router mode, it'll keep your network separate from the neighbor.

Thanks for the suggestion, so then I suppose the ZyXEL should be in bridge mode? You would have DHCP and NAT enabled on both router 1 and 2? I assume I cannot connect devices in my network directly to router 1, but should stick with router 2 and 3?

In my current setup I took a ping test on each of the routers. It seems that the only problem is router 3, this has packet loss of about 20%. Router 2 and 3 are identically set up and wired both to router 1. Does packet loss indicate anything and exclude something else, i.e. could it indicate a trouble with the cable and not settings related?

 

[mikskov]

Be sure you are using different WiFi channels on each of your three routers. Also try to coordinate channels with your neighbor.

The problem is both in wired and wifi mode when connected to router 3. The channels are optimally set.

 

[sfx2000]

Thanks for the suggestion, so then I suppose the ZyXEL should be in bridge mode? You would have DHCP and NAT enabled on both router 1 and 2? I assume I cannot connect devices in my network directly to router 1, but should stick with router 2 and 3?

In my current setup I took a ping test on each of the routers. It seems that the only problem is router 3, this has packet loss of about 20%. Router 2 and 3 are identically set up and wired both to router 1. Does packet loss indicate anything and exclude something else, i.e. could it indicate a trouble with the cable and not settings related?

Depends on how the provider configured the Zyxel - if it's a single public IP, then leave it in GW/Router, the AP(1) will grab the public IP, and then break out that to your 192.168.10.0/24 internal address range.

So your AP2 can either be static assigned (outside of the Zyxel's DHCP scope, or DHCP reserved), same with your neighbor...

With WiFi - for 2.4GHz, pick a channel, and have your neighbor pick another... 1/6/11 are always good choices there...

With 5GHz Wifi - one go high, one go low - e.g. you pick 149, they pick 48 for example...

If you're sharing a single public AP, you're going to have to be NAT'ed, and most likely double-NAT at that...

This is a simplistic approach, no doubt, but on the WAN side of the AC66 series, they don't respond well to VLAN's on the WAN side (within certain exceptions) - getting to the advanced level, one could put a managed switch (your current switch is unmanaged), and then define VLAN's for network 101 (your LAN) and network 201 (your neighbor), but this is also dependent on what the Zyxel device might support - hence why I didn't go down that path, as it introduces a lot of complexity where it's not really needed...

 

[bbunge]

The P2812 supports QOS so you can plug your router and the neighbors router into the P2812 then configure QOS to control the shared bandwidth. Turn off the WIFI on the P2812 and set the DMZ to your Asus router WAN IP. Other recommendations for WIFI settings herein are good.

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