Anybody out there familiar with "Pingplotter" and TCP/IP

[diplodicus]

I have terible problem with my broadband and have invested in new router and a three-node mesh system but still my broadband connection keeps dropping. Sometimes it reconnects after a minute or two but other times a modem/router reboot is required.

BT ADSL Internet to a cabinet over two miles distant. I don't expect >2mbps but the constant interruptions are frustrating.

Sometimes the latency is > 500msec and other times it's its 20msec.

I attach a "pingplotter" output. You can observe when I load Netflix.com.

Any advice will be leapt upon like water for a man dying of thirst!

[HarryW]

Personally, I would go back to basics:

If the connection keeps dropping out, then that is the first thing to fix.   Any amount of analysis of the link is pretty well futile until the main problem is cured.   It sounds as though synchronisation is being lost between the DSLAM and your router/modem.   I am assuming that your ISP is BT and they would be my first port of call.

[diplodicus]

Thanks HarryW,

I have had BT engineers on-site several times but they assure me the line is working properly. The last time I pad £86 for the privilege of watching an "engineer" recently demobbed from driving an army tank run through the usual BT second-line diagnostics. Generally, they don't seem to understand the significance of "packet loss" that I suspect is at the heart of my difficulties.

Trouble is that I don't understand the finer points of TCP/IP + aDSL but I want to be able to say to BT the problem is right there... an eighty-seven per cent packet loss between the router and the first BT node. Is that correct? Am I reading the trace correctly? I need to go back to BT with enough info to get past the first-line help desk that has a script and little clue as to what to do when we reach the end of it.

Sorry to be so long-winded but this has been going on for three years!!!!

[Calverley Lad]

Have you managed to seek advice from here:
https://www.thinkbroadband.com/
Not being with a telephone line service (Virgin cable) seems that advise readily available.
 Brian