Beating my head against the wall

[#1]

I can confirm that we are only able to reset a FTTC line if the sync speed is restricted by banding, because we can't submit DLM resets. The type of reset we submit which is often confused with a DLM reset is known as a caution counter reset. 

[#2]

So... conclusions from the engineer's visit for everyone who took an interest.

The speeds being delivered to the master socket were OK - around 70Mbps but the high SNRM between faceplate and my Zyxel modem router could not be explained. He updated the faceplate and that caused the downstream SNRM to reset to 5.6db dropping to 2.5db momentarily and then gradually increasing until it stabilised at [currently] 8.3db. giving a max attainable of 67Mbps and a down speed of 59.301Mbps. So at least that eliminates the very high SNRM although the current level is higher than I would expect but not disastrously so. Maybe things will settle down even more during the next few days.

He also tested what was being delivered to the end of the cable connection for my modem/router [Zyxel VMG8924-B10A just over 6 years old] again around 70Mbps which suggests that my modem/router may not be fully utilising what is being delivered to it. Time to read the reviews on the current  range of what's available if I decide to buy a new one I guess.

[#3]

Thanks for the update @BobR1 

I'm glad to see the engineer managed to get to the bottom of the issue by replacing your faceplate and resetting your line. 

Fingers crossed you can get even more speed if you decide to buy a new modem router. 

Let me know if there's anything else you'd need help with.

[#4]

@Anoush 

Hello I'm thinking I will keep the ticket open for another 48 hours or so and then close it if things remain stable.

[#5]

Hi @BobR1 

No problem, sounds good. 

You can always come back to us if you have further issues even when the ticket's closed at some point. 

Cheers

[#6]

Hmmmm - it crossed my mind to run a BT Wholesale Speedtest now that I'm receiving numbers I recognise from DSLstats. The BT results are attached. The ping surprised me as I expected much lower. The download speed also surprised me on the low side - although that might just be down to a busy time of day on the network I suppose.

For comparison I used Speedtest.net as well. It produced a ping time of 11ms, which is more like what I would expect. But the up/down speeds were more or less the same - only a small difference.

Not sure what to make of it all now.

[#7]

PS - note the BT stated "acceptable speeds" for the connection the lowest of which is higher than the actual reported speed - even if only just.

[#8]

Have you check Zyxel customer support as your router need firmware updated because it six years old. You don't need new router as I don't believe it wasn't router faulty.

[#9]

@goldenfibre 

Hello, yes of course I've checked the Zyxel Support/Download pages for my router - the Download library doesn't even recognise the model number!.

[#10]

@BobR1, Could you reboot your router and retest?

There's a profile our side which should always match the IP profile of a line, in turn is 90 to 96 % of your FTTC sync speed.

Your sync speed and IP profile has gone up as well as our profile, but as your connection hasn't dropped since our profile went up, you're still restricted by it at around 40mbps. 

This normally isn't an issue but for some connections, particularly those with static IPs, route across our network a different way and if our profile sits below the sync speed/IP profile then your speed can be restricted to that. 

In this case our profile has gone up but it hasn't fully taken effect as it needs your connection to drop.

[#11]

@Gandalf 

Interesting and yes of course I can re-boot the router. I will do that and then re-test as you request.

As a matter of interest since you mention static IPs - is that part of the problem? I presume I could give that up if necessary?

[#12]

Best to do soft disconnected and reconnected via PPPoE to pick up plusnet profile change but don't reboot the router because it will make it worse from DLM thinking fault from your router

[#13]

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@BobR1 wrote:

@goldenfibre 

Hello, yes of course I've checked the Zyxel Support/Download pages for my router - the Download library doesn't even recognise the model number!.

---

Have you tried asking them? If your model isn't listed then there may be a similar one which shares the same firmware.

Brian

[#14]

@bmc 

Hi - been there done that - no joy.

[#15]

Hi @BobR1 

No having a static IP wouldn't have caused the issues at all. You can give it up though if you no longer want or need it.

If you do remove your static IP, you may not always get a dynamic one as we may assign you a static IP automatically if you have the broadband firewall activated, you have the Pro Addon or you don't pay a bill / go into failed payment. 

This is basically just due to how these services work on our network as a static IP routes your connection differently, but this isn't a bad thing at all though and you shouldn't see a difference in the performance of your broadband with one.