Fibre Broadband Speed Change With New Router

[#1]

I have had a few issues in the recent past, which have meant a few engineer visits. Eventually I was getting the speeds I should be around 44Mb, however I had to purchase a new modem/router as the old TP-Link N600 was starting to get very hot.

I opted for a TP-Link Archer VR2800, set it up and initally to my surprise I synced at 48Mb, without issue for at least 24 hours, however the next day the sync speed had dropped to 40Mb despite my routers Max rate still showing at 46-50Mb, any ideas why this is?

Current stats are below

DSL

Line Status: Connected

DSL Up Time: 0 days 18 hours 28 minutes

DSL Modulation Type: VDSL2

Annex Type: Annex A/L

	Upstream	Downstream
Current Rate (kbps)	9910	39450
Max Rate (kbps)	10218	46077
SNR Margin (dB)	6.2	5.9
Line Attenuation (dB)	35.5	16.6
Errors (pkts)	155	3809

[#2]

Hi there, 

Diagnostics don't flag up any issues, I understand you might not want to use it but if you do have the old router still do the stats look any different in comparison to the new one?

[#3]

Thanks for the reply Adam, I will try the old router to test, obviously this is not a long term solution. Looking at the line stats I have posted can you see any reason why there is such a large difference between the current and Max rates.

It's not a stuck profile is it?

[#4]

From testing your line I can see your service is provisioned on 55/10 product.

Profile Name

0.128M-55M Downstream 6dB, Error Protection Off - 0.128M-10M Upstream, Error Protection Off

So that's not capping the sync rate.

It's probably worth trying your previous modem, also the test socket just to rule out any internal wiring issues.

A side note. Can you post up the results of a speed test for us?

I'd like to see what upload throughput you're getting.

[#5]

Speedtest results below, I will try the older router shortly.

[#6]

Thanks for that. Apart from the issue you're seeing with the download speed, that's perfect.

Now the reason why I've asked you to do that: The speed profile on your account changed from 55/10 to 40/2 last year after a recent recontracting so I had a feeling your speed may be capped on our side.

From looking at speed test results, it's looking like the speed profile on your account is not affecting your throughput. Possibly due to the way your service is routed across our network.

Keep us posted when you've tried your other router.

[#7]

And my speedtest from Sunday

[#8]

The speed profile on your account changed from 55/10 to 40/2 last year after a recent recontracting so I had a feeling your speed may be capped on our side.

I was told that as I was on the old 40/10 package that I would not be moved to the 40/2 package and would be kept on the new 55/10 profile. The upload speed is important to me.

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[#9]

Strange how the latency has increased, has the SNR or attenuation change since router swap?

[#10]

Not really mate, always been around the 6 mark for SNR and 16 mark for line attenuation.

[#11]

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smuggler2112 wrote: 
I was told that as I was on the old 40/10 package that I would not be moved to the 40/2 package and would be kept on the new 55/10 profile. The upload speed is important to me.

Your service is still on 55/10, but the speed profile on your account went to 40/2 when the contract was put through.

Nothing the adviser has done wrong, it's just the way the system works - it's basically reset the profile to the standard speed of the Unlimited Fibre package. However, from looking at your test results, our profile isn't capping your speed anyway.

If that changes, let me know and I'll get it fixed one way or another.

[#12]

I have left this for a few days to see if the problem rectified itself, I have also tested my old router and this still show my speeds where the current download rate is 39910 but the max rate is much higher at 46MB, this goes up to between 48 & 50MB on the new VR2800 router/modem.

I have also been in touch with TP-Link directly and they have checked the stats and are adamant looking at the figures that the download speed it set to a maximum of 40MB, but the router can definitely achieve the higher figures. (i know this because previous to last Sunday I was)

Is there anything you can do to help please? Maybe a profile bump to see if this will work?

[#13]

Apologies I didn't get back to you via PM.

It's not a profile issue I'm afraid.

Profile Name

0.128M-55M Downstream 6dB, Error Protection Off - 0.128M-10M Upstream, Error Protection Off

Your downstream sync rate is just low.

Sync Status	In Sync
Downstream Speed	39.4 Mbps
Upstream Speed	9.9 Mbps

I can see you've called our support team upgrade your fibre package? That's unlikely to make a difference to your downstream speed and from looking at your upstream estimates, it's possible the upload speed won't change either.

Hopefully your downstream speed picks up by itself.

[#14]

It is costing me the same for the upgraded fibre package anyway so that isn't a problem. Hopefully when the new profile starts this will improve the speeds.

Its strange when I last had a BT engineer out he had to reset my line as he said another engineer had set the line to 40/10 which is why my speeds had dropped, he reset it and speeds went back up.

I do wonder wether this has happened again?

[#15]

I’d doubt it as the profile is testing as 55/10.
But I’ll be happy to be proven wrong.