Full Fibre FTTP ONT> SH2>Deco S4 Mesh Set Up

[gunnerzz]

Hi all,

I've recently upgraded my contract to full fibre 500 from 150. 

My current setup is using the TP-Link Deco S4 mesh system. I have one S4 as my router connected to the ONT and two other S4's as access points connected via Wi-Fi.  All cables are Cat6 or Cat5e in some cases over short runs.

The issue I have now is the Deco unit won't provide speeds past about 155Mb/s which was fine on my previous contract as that was the cap.

Using the BT SH2 as the router does provide me with the 500Mb/s speeds I should be getting but as per most users here, I do not like the feature it does/does not provide and don't want it handling my internet settings where possible. 

Could someone walk me through the best way to Connect my devices like so: ONT>SH2>Deco S4?

Is there a way to do this without double NAT? I have a lot of IoT devices and a NAS server that require port forwarding.

Many thanks.

[licquorice · Accepted solution]

Two options.

1. ONT > SH2 LAN port > Deco LAN port in AP mode

2. ONT > SH2 LAN port > Deco WAN port in router mode.

Option 1. SH2 doing all the routing.

Option 2 SH2 and Deco routing. Double natting.

[gunnerzz]

Thanks for your reply. 

I've done some messing around with it tonight and I can't get either of your options to work. 

My Deco has a red error light and can't receive internet access which ever way I seem to set it up. 

Edit: a factory reset did the trick 

This really shouldn't be that difficult... Not sure what I'm doing wrong 

[stevebrass]

What is the wifi spec of the Deco S4? Can it achieve 500Mbps?

[gunnerzz]

AC1200

5 GHz: 867 Mbps (802.11ac)

2.4 GHz: 300 Mbps (802.11n)

And two gigabit ports. 

Should manage, no? Getting speeds of ~300Mbs over 5ghz WiFi currently.