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500 - 900 speed upgrade but no change in speeds

endorium — Sat, 29 Nov 2025 22:28:43 GMT

My contract had finished so went online and upgraded to 900mb speed from 500. It was confirmed and got a text to say its now done and my new plan has started. Its been 4 days and my speed hasnt changed at all. Switched the router and ont box off, waited and then back on but no change. I presume the ONT doesnt need changing? Any tips?

Re: 500 - 900 speed upgrade but no change in speeds

chrisjp — Sat, 29 Nov 2025 23:12:40 GMT

Are you measuring your speed at the hub or via an ethernet connected device?
Or are you using a WiFi connected device to check the speed?
If the latter, it could be your WiFi that is limiting the speed that can be achieved.

Re: 500 - 900 speed upgrade but no change in speeds

endorium — Sat, 29 Nov 2025 23:31:54 GMT

Hi, measuring on a Ethernet device connected to the hub. Getting 350 max. Which is what I got before the upgrade.

Re: 500 - 900 speed upgrade but no change in speeds

Kimberlin — Sun, 30 Nov 2025 08:41:31 GMT

@endorium What spec Ethernet cable are you using?

Re: 500 - 900 speed upgrade but no change in speeds

Anonymous — Sun, 30 Nov 2025 10:08:51 GMT

The only difference between 150mbps and 900mbps is the price.

You'll probably get lots of " try this or try that advice " but in the real everyday world there's literally no noticeable difference or benefit between 150mbps and 900mbps .

Given you're still within the cooling off period just cancel the 900mbps and save yourself this unnecessary expense

Re: 500 - 900 speed upgrade but no change in speeds

endorium — Sun, 30 Nov 2025 10:02:51 GMT

Thanks for the pointless reply. You have no idea what I do for work or why extra bandwidth would help. It would make a huge difference to me, and I'm paying for that difference. Which currently I'm not getting

Re: 500 - 900 speed upgrade but no change in speeds

endorium — Sun, 30 Nov 2025 10:03:05 GMT

Cat 6

Re: 500 - 900 speed upgrade but no change in speeds

WSH — Sun, 30 Nov 2025 10:55:38 GMT

You’re not running it through an older third-party router, are you?

A lot of the pre-FTTP generation of routers had firewall throughputs of 350Mb/s max. My old Draytek 2762 is in that position, unless I turn on hardware acceleration, but I only have 150Mb/s connection anyway.

Re: 500 - 900 speed upgrade but no change in speeds

Crimliar — Sun, 30 Nov 2025 12:10:39 GMT

Most modern(ish) routers with "regular" firewalls and no QoS or packet inspecting firewalls should be able to manage 1Gbps - or near enough - to the WAN port. It's only when you invoke processes that require each packet to be manipulated/inspected that throughput speeds tend to drop (ie hardware NAT acceleration needs turning off).

*An old Draytek I've used certainly managed to in excess of 950Mbps with h-NAT enabled, but that dropped to around 150Mbps with QoS and an active-firewall.

**Most of us don't need a more complex active-firewall, only those who who need to run servers or other special situations.

Re: 500 - 900 speed upgrade but no change in speeds

Anonymous — Sun, 30 Nov 2025 12:27:59 GMT

Does the 2019 SH2 fall into the modernish (is that an actual word?) category?

Re: 500 - 900 speed upgrade but no change in speeds

endorium — Sun, 30 Nov 2025 13:09:31 GMT

No, bt home hub 2 router

Re: 500 - 900 speed upgrade but no change in speeds

Crimliar — Sun, 30 Nov 2025 14:39:25 GMT

@Anonymous That the SH2 falls in to the "modernish" category is precisely why I phrased it that way. It's chipset should be perfectly capable of delivering near 1Gbps to the WAN port if needed.

The caveat here being that you really do need devices and interfaces capable of handling such throughput - which the phrasing from our OP would suggest they do have! I've devices with 1Gbps ethernet ports which will talk over a 1Gbps connection, but either thanks to the interface or the lacklustre capabilities of the device can definitely not saturate the connection - and when it come to 2.5Gbps I've only a couple of device that can saturate the connections. WiFi is even worse!

Re: 500 - 900 speed upgrade but no change in speeds

Anonymous — Sun, 30 Nov 2025 22:01:55 GMT

I'm surmising you've phoned BT

You told them your predicament hoping they would do something their end to give you what you're paying for.

They informed you that you are indeed getting 900mbps to the router.

That router being a wifi 5 SH2

In my capacity of pointless advice provider can I suggest you consider changing the router.

BT offered me 900mbps for a £1 extra from 500mbps to obviously get me to commit to a further 24 months

On the morning of the change over nothing had changed.

Thinking they must have forgotten I phoned and was told I was getting it..900mbps to the hub.

I did some research and discovered to really benefit from 900mbps you need a wifi 6 router

Can I pointlessly suggest you consider this option

Re: 500 - 900 speed upgrade but no change in speeds

licquorice — Sun, 30 Nov 2025 22:14:45 GMT

Do stop peddling your same old rubbish, it is getting tedious.

What on earth has WiFi 6 got to do with an Ethernet connected device.

Re: 500 - 900 speed upgrade but no change in speeds

Anonymous — Sun, 30 Nov 2025 23:03:37 GMT

You're missing the point...oh wait it's pointless