Just an update to show I'm not totally crazy and the machines are capable of doing them speeds just not over this Router it seems?

I used iperf to test this.

First one is Wired gigabit

------------------------------------------------------------
Client connecting to server, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.0.123 port 35236 connected with 192.168.0.22 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.10 GBytes 941 Mbits/sec

Wireless via 5Ghz

------------------------------------------------------------
Client connecting to server, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 192.168.0.40 port 51450 connected with 192.168.0.22 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 228 MBytes 191 Mbits/sec

Ok after doing a lot of research of real world tests about AC wireless it seems the rates I'm getting are not as bad as I first thought, they are on the low end yes, but it seems about right, maybe a better router would help but that will have to wait a long time..

source: http://www.speedguide.net/faq/what-is-the-actual-rea...

802.11ac - 70-100+ Mbps typical, higher speeds (200+ Mbps) possible over short distances without many obstacles, with newer generation 802.11ac routers, and client adapters capable of multiple streams.

Last iperf test I ran about 10minutes ago gave me 240Mbps from the server and 306Mbps to the server... wish it was almost gigabit speeds... maybe time to run some cable..

In terms of doing what most people need, that is to get 38 or 76Mbps over WiFi, wireless AC does the job. It's not a replacement to using a wire for internal network transfer speeds.

That said I do get 420Mbps over wireless AC using the smart hub. That is in the same room as the router with all devices.

Might be worth checking for updated drivers for the wireless adaptor.

Not necessarily a new router. I used to get around 360Mbps on 5Ghz using a USB Wifi stick and thought I was doing quite well. However after suffering a lot of drop connections I decided to invest in a pci card with external aerial. The increase in sync speed was certainly well beyond what I expected given the PC hasn't moved. I now get well over 700Mbps.

So before condemning the router, look at other items in the link. For instance we have bamboo blinds. Surprising what difference they make to the signal - i.e. I can lose nearly 200Mbps just by having them down (the router sits on the window cill).

In reply to a post by Jaggies:

Might be worth checking for updated drivers for the wireless adaptor.

I used the driver update util from intels site and it seems to be the latest.

Well, at least that rules out a driver issue.

In reply to a post by 69bertie:

Not necessarily a new router. I used to get around 360Mbps on 5Ghz using a USB Wifi stick and thought I was doing quite well. However after suffering a lot of drop connections I decided to invest in a pci card with external aerial. The increase in sync speed was certainly well beyond what I expected given the PC hasn't moved. I now get well over 700Mbps.

So before condemning the router, look at other items in the link. For instance we have bamboo blinds. Surprising what difference they make to the signal - i.e. I can lose nearly 200Mbps just by having them down (the router sits on the window cill).

I sit no more than 1-2m away from the router at the moment and have line of sight with it, I will have a double check inside the laptop and check the antennas are connected correctly as it is something i had not thought about.

Don't think there is any other way to get a better antenna on a laptop?

@69Bertie

The OP is not talking about SYNC speed, indeed his devices are synch'ing at very high speeds (I've read his posts on Plusnet community)
His issue was sustained throughput and what that should be in a real world environment which turned out to be 30%+ of the sync speed.

What wireless card is being used?

What is the connection rate you are getting in windows?

Does your laptop have an SSD?

Have you split the SSIDs on the HH5 so you are connecting into the 5Ghz band only?

How are you measuring these speeds, copying from a NAS, some tool?