We had Zen via CityFibre installed about three weeks ago, replacing our previous FTTC from a different provider. We are on the 300Mbps package.

Because of historical problems with our previous service, I have habitually done Ookla speed tests etc every day and kept a spreadsheet with the results. Speed tests always done on a wired ethernet connection.

On the day of installation, the Fritz!Box router was on its original firmware - v7.?, and Ookla indicated a "Download Latency" of 38 milliseconds.

During the following night, the router firmware updated to the current 8.0 and the router restarted. Ever since then, the Download Latency has been in the region of 160 to 175 milliseconds.

The router has been factory reset since the firmware update and rebooted several times, but nothing seems to improve this.

We are not "gamers", and the new service is definitely an improvement over the old one, but could this increase in D/L Latency be due to the firmware upgrade, or should I be looking elsewhere?

TIA

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Cut out the router: test directly into the Ethernet port of the ONT from a laptop/PC and see what results you get.

@Pheasant

Thanks for the reply.

How would I set my PC up to do that on Linux (Mint) OS?

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Essentially mirror the WAN port connection network setup per your router and replicate that on the NIC setup for the PC. Disconnect the router from the ONT, connect up your PC directly in its place. Allow it to authenticate and connect and then run your speedtests etc. Then revert it back when you're done.

Do you need more detail?

In reply to a post by Pheasant:

Do you need more detail?

Yes please!

The cabling part I'm OK with, it is the "mirror the WAN port connection network setup per your router and replicate that on the NIC setup for the PC" that I'm not sure about.

I know how to get to the network settings on my PC, and I can interrogate the Fritz!Box router to see the "Internet > Connection Details", but which settings from the router do I need to put on to the PC?

On my PC I have changed connection "Method" from "Automatic (DHCP)" to "Manual", and copied the static external IP address from the router to the PC. However it is asking me for a "Netmask" and a "Gateway" - what should I put here please, (and is what I have done so far correct)?

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No that's not correct.

See the summary settings below:

https://www.zen.co.uk/help-support/general-settings-...

You will need to setup a PPPoE client on the PC and follow the advice for VLAN tag settings.

@Pheasant
Thanks for the reply and your assistance with this.

Unfortunately, I don't see any references to "PPPoE Client" or "VLAN" in my computer's Network Settings or Network Connections.

I have tried web searching for info about setting up PPPoE in Linux Mint, but TBH, I didn't understand any of the replies.

I'm wary of messing something up, so I'm inclined to leave this - as I said earlier, we are not gamers so this isn't causing us any real issues, I was just interested to know from other people's experience if it was / could be connected to the firmware update or if that was just a co-incidence.

Thanks again for replying and help.

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No worries.

Its usually a good fault finding method, as you are testing effectively at what is the "master socket" - as long as your PC is reasonably modern and performant then you should get an accurate baseline.

However completely understand if you're not super confident making the changes to your main machine / at risk of making matters worse.

Thanks for the heads up about Provider Services. There was indeed an option enabled to Permit Automatic Updates. Now unticked

The AVM Services tab just has 'check for updates' , which doesn't necessarily mean they will get installed? The other two options are for diagnostic data which shouldn't allow an update to be carried out without my knowledge.

Cheers!

In reply to a post by countryman69:

@MJ_WXM

I think you may have overlooked another 'backdoor'.

Internet > Account Information > Provider Services

You might also like to consider removing permissions on

Internet > Account Information > AVM Services

Edited by MJ_WXM (Sat 07-Dec-24 18:27:46)

Zen pushed my 7530 an overnight automatic update to 8.00-116930 PLUS a few days ago.