topic Re: Half sync issue. Half of normal speed FTTC. in Broadband

Half sync issue. Half of normal speed FTTC.

Binz — Fri, 10 Apr 2026 13:54:57 GMT

Hello.

I am a new customer to Plusnet. I was switched over form TalkTalk on the 30th of March.

Quick summary: I was regularly getting 47-50Mbps download and now it's 23-27Mbps.

About three/four weeks ago whilst with Talktalk I can't remember what day it was, my internet connection started to drop, come back on, drop and come back as it had done before in the past but. I noticed this time it had slowed down.

Since then no matter what I do I am now seemingly reduced to half the speed of what I was getting before. I firmly believe something is wrong with my line or at the cabinet. Whilst with TalkTalk couple of years ago an Engineer come out and fitted a Master Socket 5c in my flat (It's the only phone socket) and reset the line etc. I had not real issues up until now. My Desktop is connected directly to the hub.

I have included a couple of screen shots.

Please help.

Many thanks.

Re: Half sync issue. Half of normal speed FTTC.

jab1 — Fri, 10 Apr 2026 14:06:05 GMT

@Binz Welcome to the forums. Can you export your Event log, and attach the resulting file to a post, please? Your Technical Log does point to an Openreach problem, but the error log will give more detail.

Re: Half sync issue. Half of normal speed FTTC.

Binz — Fri, 10 Apr 2026 14:09:50 GMT

As requested event log attached.

Many thanks.

Michael.

Re: Half sync issue. Half of normal speed FTTC.

Townman — Fri, 10 Apr 2026 14:13:20 GMT

This sounds like a faulty line, possibly a leg disconnect.

Try the fault bot - see link below.

Re: Half sync issue. Half of normal speed FTTC.

PhilipHeyes — Fri, 10 Apr 2026 14:14:24 GMT

From the attached Technical Log the SNR is : 23.9 / 17.4 dB suggesting the line should operate faster.

Re: Half sync issue. Half of normal speed FTTC.

jab1 — Fri, 10 Apr 2026 14:14:46 GMT

Cheers, @Townman - saved me typing. 😃

Re: Half sync issue. Half of normal speed FTTC.

jab1 — Fri, 10 Apr 2026 14:19:41 GMT

@PhilipHeyes wrote:

From the attached Technical Log the SNR is : 23.9 / 17.4 dB suggesting the line should operate faster.

Those SNR figures indicate - given the attenuation - that there is a network fault, so OR intervention is needed.

Re: Half sync issue. Half of normal speed FTTC.

Townman — Fri, 10 Apr 2026 14:19:44 GMT

There’s a number of possible matters here. High SNRM suggests that the line is chronically banded to maintain stability in the presence of frequent disconnections.

That could be a simple bad joint (xDSL can operate with one of the pair wires broken - historically that would result in no dial tone). Given this is a transfer from TT LLU there could be something awry in the exchange. Get a fault report raised ASAP.

Re: Half sync issue. Half of normal speed FTTC.

Binz — Fri, 10 Apr 2026 14:30:07 GMT

Hi ya.

Is the fault bot sending a text HELP to the no 07800008121.

if so I've just done that.

Cheers.

Re: Half sync issue. Half of normal speed FTTC.

jab1 — Fri, 10 Apr 2026 14:43:31 GMT

@Townman A quick look at the error log revealed almost constant xDSL drops.

Re: Half sync issue. Half of normal speed FTTC.

Binz — Fri, 10 Apr 2026 14:48:02 GMT

Reported via text, got a replay fault found and about booking an engineer. Fingers crossed.

Many thanks for the advice everyone..

Michael.

Re: Half sync issue. Half of normal speed FTTC.

Townman — Fri, 10 Apr 2026 16:42:50 GMT

“About three/four weeks ago whilst with Talktalk I can't remember what day it was, my internet connection started to drop, come back on, drop and come back as it had done before in the past but. I noticed this time it had slowed down.”

Sounds as the fault has been around for a good while. xDSL is fairly resilient in the face of faults … but with degraded speeds.

Re: Half sync issue. Half of normal speed FTTC.

Binz — Fri, 17 Apr 2026 12:34:23 GMT

Just an update for anyone interested.

10 out of 10 for Plusnet. Whatever happened on the 14th my speed is now the best it's been since all the time I was with TalkTalk. Nobody visited to check anything, so don't know what was done.

Many thanks.