topic Re: Reduced speed and high latency in Broadband

Reduced speed and high latency

bellymonsteruk — Tue, 09 Dec 2025 20:27:49 GMT

I have intermittent issues with my full fibre connection.

Fast shows that my speed has dropped to about 60mbs and more importantly my latency is between 150ms and 220ms.

Usually happens in the evening (but not every evening) and will resolve itself after an hour or two

When everything is working well I get 300 to 400mbs on a wireless connection and sub 20ms latency.

Any ideas on how to fix it, as streaming the footie tonight is really frustrating.

Re: Reduced speed and high latency

Dan_the_Van — Wed, 10 Dec 2025 09:19:04 GMT

@bellymonsteruk welcome to the forum

speeds of around 60 mbps could suggest a wireless 2.4 GHz connection or maybe to a distant wireless access point.

What router are you using and do you have any WAP or extenders?

For an accurate speedtest a wired connection should be used. Many speed issues have been found due to poor local wireless performance.

Re: Reduced speed and high latency

bellymonsteruk — Wed, 10 Dec 2025 20:07:11 GMT

It's not the wifi connection. As stated, when it goes back to normal I get 300mbs on my mobile and other devices.

This is something that happens in the evening and it's the latency that is killing the connection.

Re: Reduced speed and high latency

bellymonsteruk — Wed, 10 Dec 2025 20:08:15 GMT

Should have stated, I'm using a Hub 2 and nothing else.

Re: Reduced speed and high latency

Anonymous — Thu, 11 Dec 2025 01:17:50 GMT

For clarrification.

Is that speed upload or download speed.

(My testing using Fast for upload speeds can result in similar latencies)

Re: Reduced speed and high latency

bellymonsteruk — Thu, 11 Dec 2025 08:06:32 GMT

That is download speed. Upload speed stays fairly consistent and in fact is about par with the download speed when the issue happens.

Last night I texted the diagnosis bot whilst it was happening but by the time I got it to recognize my number the issue had cleared and it said there was no problem detected.

Re: Reduced speed and high latency

Dan_the_Van — Thu, 11 Dec 2025 09:48:19 GMT

Busy network could be causing the latency.

Is it just FAST you are using?

Do you notice the latency at the same time of the evening when it happens.

What activity do you have on your home network, would you say it is busy, any cloud saves happening?

Looking the the Hubs >Home >My devices page, is there a device there with a high upload figure?

Looking at the Hub >Home >Advanced settings >Technical log page what does "Data sent / received" do you have a large upload figure.