Fluctuating latency - help...not getting anywhere
We've had an outstanding issue with our ADSL service for several months now and I'm barely getting anywhere with support.
Ping results to our public IP from various other locations (which are a mix of ASDL, fibre etc. even from abroad) show the latency all over the place to 1 office on Plusnet Business broadband.
We've done all the basics, unplugged everything bar the router (and tried 2 Draytek Vigor's too with various firmware revisions), new filter, using the engineer test socket, but can't find the cause. BT have even been out and tested the line, but because they only check for noise and speed (I think) they showed no errors. We've played around with the SNR, had the line reset, but still the issue is present.
I think there is a fault with the cabling somewhere between the office and the next hop, because any ping tests show the latency is purely between the last 2 hops (hops 8 and 9 below):
Excuse the poor formatting, it looks perfect in the editor!
Packets Pings
Host Loss% Snt Rcv Last Best Avg Wrst
1. ge-0-0-1-3003.fw0.the.uk.goscomb.net 0.0% 166 166 0.2 0.2 0.3 13.8
2. ge-1-1-0.edge00.sov.uk.hso-group.net 0.0% 166 166 13.2 0.4 9.2 47.8
3. peer2-xe-0-1-2.redbus.ukcore.bt.net 0.0% 166 166 0.5 0.3 1.4 60.3
4. core4-hu0-6-0-2.faraday.ukcore.bt.net 0.0% 166 166 1.2 0.9 1.4 15.9
5. acc2-10GigE-0-4-0-10.l-far.21cn-ipp.bt.net 0.0% 166 166 1.5 1.0 1.6 17.8
6. 195.99.126.99 0.6% 166 165 0.8 0.7 2.1 36.0
7. ae1.ptw-cr02.plus.net 0.0% 166 166 0.8 0.7 1.8 23.7
8. link12-central10.pcl-gw02.plus.net 0.0% 166 166 1.1 1.0 1.7 13.4
9. HIDDEN.plus.com 0.0% 165 165 331.9 41.6 494.9 26151
The actual latency can at times be as high as nearly 3000ms too when the office is empty!
Any ideas as to what we can possibly try next?
Ping results to our public IP from various other locations (which are a mix of ASDL, fibre etc. even from abroad) show the latency all over the place to 1 office on Plusnet Business broadband.
We've done all the basics, unplugged everything bar the router (and tried 2 Draytek Vigor's too with various firmware revisions), new filter, using the engineer test socket, but can't find the cause. BT have even been out and tested the line, but because they only check for noise and speed (I think) they showed no errors. We've played around with the SNR, had the line reset, but still the issue is present.
I think there is a fault with the cabling somewhere between the office and the next hop, because any ping tests show the latency is purely between the last 2 hops (hops 8 and 9 below):
Excuse the poor formatting, it looks perfect in the editor!
Packets Pings
Host Loss% Snt Rcv Last Best Avg Wrst
1. ge-0-0-1-3003.fw0.the.uk.goscomb.net 0.0% 166 166 0.2 0.2 0.3 13.8
2. ge-1-1-0.edge00.sov.uk.hso-group.net 0.0% 166 166 13.2 0.4 9.2 47.8
3. peer2-xe-0-1-2.redbus.ukcore.bt.net 0.0% 166 166 0.5 0.3 1.4 60.3
4. core4-hu0-6-0-2.faraday.ukcore.bt.net 0.0% 166 166 1.2 0.9 1.4 15.9
5. acc2-10GigE-0-4-0-10.l-far.21cn-ipp.bt.net 0.0% 166 166 1.5 1.0 1.6 17.8
6. 195.99.126.99 0.6% 166 165 0.8 0.7 2.1 36.0
7. ae1.ptw-cr02.plus.net 0.0% 166 166 0.8 0.7 1.8 23.7
8. link12-central10.pcl-gw02.plus.net 0.0% 166 166 1.1 1.0 1.7 13.4
9. HIDDEN.plus.com 0.0% 165 165 331.9 41.6 494.9 26151
The actual latency can at times be as high as nearly 3000ms too when the office is empty!
Any ideas as to what we can possibly try next?