topic Re: ASDL very high ping. in Broadband

ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 14:54:43 GMT

I have been having issues with very high ping/latency on my line for almost a month now. Changing routers made no difference nor did plugging my laptop directly into the router. The BT engineer was here last week and changed a few things including putting a new master socket on and this did increase my download speeds by a few Mb but the high ping problem remains.

I attach my ping plotter chart, surely this is exceptionally high? Any advice would be very much appreciated.

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 15:38:38 GMT

@Albut17 wrote:

I have been having issues with very high ping/latency on my line for almost a month now.

What new internet connected device have you been using since Christmas ?

High ping/latency on ADSL is nearly always due to a combination of ADSL's very low UPLOAD bandwidth, and some device on your home network doing a lot of UPLOADING.

Possible culprits include -

a mobile phone backing up to cloud storage
someone doing two way video calls such as Zoom or other use of a webcam
something sharing your connection with a bandwidth distribution service such as BitTorrent
uploading content to YouTube, or other media site

Unless you are particularly technically inclined, and you have no alternative to ADSL, then your best bet is to find whatever is overloading your ADSL upload path and find some way of restricting the offending application's transmission speed in it's settings, or in the case of using a webcam try reducing the camera's video resolution.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 16:31:54 GMT

Thanks for your reply. There are absolutely no new devices in the household within the last month.

Ive been running pingplotter all day and something very bizarre just happened, as soon as 4pm came along all the packet losses and high pings disappeared like a switch had been flipped. I was not using any other devices this afternoon and just watching the graph.

Have attached a screenshot of everything settling down at 4pm. I cannot think of a reason for this happening on my end.

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 16:52:02 GMT

@Albut17 wrote:

Changing routers made no difference ...

What router models do you have available ?

I'm wondering if any have a real-time connection bandwidth usage graph that you could watch during bad latency periods ?

or is compatible with RouterStats for monitoring your ADSL connection ?.

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 17:05:55 GMT

@Albut17 wrote:

Ive been running pingplotter all day...

As you are on ADSL and have probably had that for a long time, do you happen to have a STATIC IP address from Plusnet ?

I'm thinking (if you do) that maybe you could setup a ThinkBroadband Broadband Quality Monitor that would run 24/7 to plot latency graphs without needing to have your laptop switched on, with the hope of showing times of day when your ping goes bad - which may in turn help you identify a pattern (across days) that might lead you to either upload usage or interference causing your slowdowns.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 17:07:41 GMT

I am using a plusnet hub 1 at the moment, im awaiting the plusnet hub 2 to be posted. I am hoping for a miracle to happen when I plug that in

I also have a quite old sagemcom and thompson router but I cant imagine they would be useful? I have used them in previous weeks but the situation is the same with all of them.

The intermittency of the issue is what baffles me.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 17:09:26 GMT

my ip is not static. would I not be able to use that service you mentioned with a dynamic ip?

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 17:21:54 GMT

On a dynamic IP it would work over a short time, but if your ADSL line re-syncs due to noise, then you risk your IP address changing, and would need to update the BQM monitor to the new IP address in order for plotting to continue.

It is probably worth a try - as it might reveal something useful.

Before you start, it would be worth checking that whatever router you intend to use has a pingable WAN port (I have a vague recollection that the Hub-1 might not be).

Other forum members here might be able to advise you whether your old sagemcom and thompson are pingable - if you can say what exact models they are.

Re: ASDL very high ping.

Dan_the_Van — Sat, 18 Jan 2025 17:29:22 GMT

With the Hub One you will need to put a device in the DMZ, it's recommended to use a wired device to remove any wireless issues

EDIT: can you please share the Held Desk page from the Hub, this details the connection details, just obscure your broadband username

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 17:39:24 GMT

here is the hub helpdesk page attached.

Re: ASDL very high ping.

Dan_the_Van — Sat, 18 Jan 2025 18:02:08 GMT

Thanks, looks like there was a DSL disconnect around 2am as the uptime is only 15 Hours 37 Minutes

Also worth noting the upload data is not that excessive.

Is the Hub connected directly to the master socket? if you have a landline phone is it noisy? Dial 17070 select option 2, the line should be silent with the exception of a deranged voice saying quiet line test.

As previously mentioned router stats maybe be useful here.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 18:14:24 GMT

That was me at 2am, I had plugged the laptop into the router via ethernet and then reset the router.

Yes the hub is directly attached to the master socker, and the bt engineer put that in last week.

I just rang the number you suggested and it is totally quiet.

however suddenly I am getting the packet losses and high pings again. I have not changed anything on this end.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 19:24:33 GMT

not sure if this is any help, router stats for the past hour. not sure what that crazy spike was.

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 19:57:00 GMT

That doesn't look right !

You might have better luck using "RouterStats Lite" with one of your other routers if those models appear on the "Currently works with.." list on that webpage.

Re: ASDL very high ping.

jab1 — Sat, 18 Jan 2025 20:00:55 GMT

@outcast wrote:

That doesn't look right !

.

Actually, it is totally wrong. I can't set up and run RS to give the proper settings but instructions are provided by @Townman at the foot of all his posts.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 20:10:40 GMT

thankyou ill go check that out now and report back.

Re: ASDL very high ping.

Townman — Sat, 18 Jan 2025 21:23:23 GMT

The Plusnet Hub One is a BTHH5a for which there’s a customised version of RouterStats … which delivers good quality data.

That Rx margin plot is utter nonsense - SNRM is typically less than 21dB (ideally 6dB) - the scale of the graph is not appropriate. More over where a SNRM plot is concerned, where variable, a higher value indicates a better state of affairs than a lower one.

The very old link in my sig to configuring router stats referenced a thread which has been archived and referred to the excellent sagem router.

The BTHH5a version needs little configuration beyond setting the sample interval to 10 seconds and the graphs to 720 plots. That delivers 2 hour intervals per graph and provides clear visibility of short duration noise spikes.

ADSL can be adversely impacted by internal telephone wires. The fact that the router is not attached to an extension does not mean that they have no impact. They act like aerials picking up no end of RFI interference.

Re: ASDL very high ping.

Albut17 — Sat, 18 Jan 2025 23:01:39 GMT

Thank you for the instructions, sorry i did the totally wrong program initially. This is what I have now for the past few hours on router stats

this looks relatively stable, however i am having a lot of packet loss right now.. so i am quite confused

Re: ASDL very high ping.

outcast — Sat, 18 Jan 2025 23:43:44 GMT

Your Hub-One modem stats, and your noise margin plot, would suggest that there's not much wrong with the ADSL connection, and you probably don't have much (if any) noise related packet loss - just bursts of excessive latency where the ping replies take too long to return (showing as red stripes on PingPlotter).

So back to my original theory that something on your network is uploading at approximately 1Mbps and swamping your outgoing connection. You now need to isolate your internet so that ONLY your laptop is connected for monitoring purposes.

Can you power off every device in your house that might be connecting to your internet. including all mobile phones, TVs, games consoles, etc. so that ONLY your laptop remains connected ? - then see if the latency disappears,

If the latency is still there (with only your laptop), can you open your operating system's 'system monitor' graphs, and see whether the laptop's network port is transmitting anything ?

Re: ASDL very high ping.

Albut17 — Sun, 19 Jan 2025 02:04:40 GMT

Yes I can try that, only my laptop is connected now to the hub and I am still getting the latency on pingplotter.

do you mean the resource monitor app?

I have that open and see the graphs but I do not know where to go from there to check if the network port is transmitting.