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Broadband Speed now halved

lordmelch
Tuning in

on ‎04-10-2021 13:56

Afternoon.

Used to get 200Mbps download speeds, now for some reason lucky if I get 85.
I notice the router (Hub 3) did an update a while back. Maybe that has stuffed it.
Router tests all OK.

I am using CAT6 to the Hub - tried multiple wired devices on Speedtest at various times of the day, speed (or now lack of) fairly consistent.

Hardware version: 10
Software version: 9.1.1912.304

 

Can I role back ? Anything else I can try

 

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4 REPLIES 4

Andrew-G
Alessandro Volta

on ‎04-10-2021 14:15

The update may have introduced new and unasked for wifi problems, but on an ethernet connection you'd be unlikely to see any problem.

You've tried a different cable?  I had this problem recently on my 200 Mbps connection, and it was a flakey cable, which had worked Ok for years, but now was causing the hub to flick between 100 Mbps and 1 Gbps protocols.  Obviously the 1 Gbps is overkill on our 200 Mbps, but the practical impact of the cable issue was intermittent halving of speed.

Almost any borrowed cable will do for testing purposes, since it's two decades since non-gigabit ethernet cable was widely available, but if buying new I'd opt for Cat 6a or higher.

lordmelch
Tuning in
In response to Andrew-G

on ‎04-10-2021 14:17

I have tried multiple cabled devices, each with different cables. So not one particular device or cable..

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jem101
Superstar
In response to lordmelch

on ‎04-10-2021 15:58

@lordmelch a speed of around 85 Mb/s is highly suggestive of something has negotiated the port speed to 100 Mb/s. As you have tried multiple devices and cables that would suggest the hub ports themselves are the culprit. Now there have been reports of hubs spontaneously having port issues or even not working at all, which may well be related to a firmware update.

I take it you have tried different sockets on the back of the hub as well as a simple reboot of it with no improvement, the next step is a full factory reset of the hub. To do this, stick a paper clip or similar into the reset button on the back of the hub and leave it depressed (you’ll feel a faint click as it presses the button) for a good minute. The hub should reboot and come back up as it was when you first got it, ie the WiFi SSID and password will be back to what it says on the sticker as will the login password for the hub so you’ll need to log back into it and setup any changes you may have made again.

Incidentally before you do this, make sure that the sticker is there and is readable otherwise you’ll be a bit stuck when it resets!

lordmelch
Tuning in
In response to jem101

‎04-10-2021 17:14 - edited ‎04-10-2021 17:19

@jem101 wrote:

@lordmelch a speed of around 85 Mb/s is highly suggestive of something has negotiated the port speed to 100 Mb/s.


Spot on just found that exact thing.. After testing with a known device i.e. a cable that works on multiple devices, against various switches, there is a 100 Mb/s port negotiation issue.

Nothing to do with Virgin Media or their Hub at all 🙂
Next step different hardware..

@Moderator either pls delete this post or leave open to help those in the future
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