Packet loss - you fibre

Anyone else experiencing packet loss today on you fibre please? Seeing it on 4 and 6. Thanks
https://www.thinkbroadband.com/broadband/monitoring/...

Can't see any packet loss on that graph.

That's because the poster gave the live link not the calendar day link. Of course, the day link is only available from the end of the day onwards.

Edited by pluralist (Wed 27-Nov-24 15:57:00)

Can you post a graphic from Monday (when you noticed the packet loss)? As pointed out, in your OP that is a "live" graph above, so all we see is the current 24-hour rolling window.

In the live graph, there's no packet loss evident - packet loss is shown from the top of the graphic as effectively as "stalactites" that drop down deeper into the main body of the graphic as the packet loss worsens.

As it stands you don't have that. What you do have, in the live graph anyway, is quite regular periodic bursts of minimum latency spikes - looks quite metronomic, almost hourly. This is and of itself, nt really anything to be concerned about (although it doesn't look lovely and smooth and green). It may be a periodic job or task that your router is prioritising over responding to ICMP requests. Unless its something that you've recently noticed has changed, in which case it might warrant further checks...

Hi.

Thanks for your reply. I just caught an mtr as I have live packet loss at the moment on the tbb chart.

Pls ignore the yellow spikes. That's my end as I have some server replication going on but here's an mtr with the packet loss....
https://ibb.co/ydW1MJv
https://www.thinkbroadband.com/broadband/monitoring/...

Cheers for the update. Yes you definitely have packet loss fair and square there.

You had a reduction in latency around 11pm, indicating a change in routing was made.
Hopefully they're aware and this was an attempt to fix it.

That being said, your other image is showing packet loss to the first hop.
I'm assuming that's at the providers network...

I would say the latency has dropped from 11 to something like 8ms, from the first hop onwards.
Definitely some big changes made.

Tbh I have had no response from YF yet after logging it a few days ago.

Is the mtr being run from the router, or from a local PC?

If it's from the router, the first hop is an IP address at the ISP (so no need to hide it). This would suggest that the packet loss is happening directly on the link between you and the ISP, or at the ISP's aggregation router. Packet loss at a single hop doesn't necessarily mean anything, but seeing 20% loss at all hops is consistent with 20% loss actually happening before or at the first hop.

If it's from a PC, the first hop is a local private IP address (so no need to hide it). This would suggest that the problem is within your LAN or your router.