Latency Issues - Vodafone or Cityfibre?

Recently Ive started getting terrible latency at peak time of the day and also at random other times - as per the below trend - is this likely to be a Cityfibre or Vodafone issue (before I try and tackle vodafone CS)?

My Broadband Ping

Hey rw,

I've made a similar post to this, which seems to happen at peak times. They do anything to pinpoint it to your house. I've had many arguments with them recently because I'm trying to explain that it's outside of my house deep within the network and they don't get it at all. Make sure to also keep a complaint timeline, as my complaint got closed despite it not being fixed.

I would try to prove whether the problem is idle latency, loaded latency, or just an intermediate-hop graph artefact.

Best evidence is usually:

- quiet-time test and peak-time test
- idle ping to a real destination, not just an intermediate hop
- test while upload/download is active
- BQM screenshots with times marked
- wired test if possible, to remove Wi-Fi from the argument

If idle latency is fine but latency jumps when the connection is busy, that points more towards queueing/bufferbloat. If idle latency rises every evening, it looks more like congestion/routing.

This is a quick way to separate idle speed from latency under load: loaded latency test

In reply to a post by Charlesr26:

I would try to prove whether the problem is idle latency, loaded latency, or just an intermediate-hop graph artefact.

Best evidence is usually:

- quiet-time test and peak-time test
- idle ping to a real destination, not just an intermediate hop
- test while upload/download is active
- BQM screenshots with times marked
- wired test if possible, to remove Wi-Fi from the argument

If idle latency is fine but latency jumps when the connection is busy, that points more towards queueing/bufferbloat. If idle latency rises every evening, it looks more like congestion/routing.

This is a quick way to separate idle speed from latency under load: loaded latency test

As far as I see, every post you have made since you joined this forum has contained a link to the linkspeed site (some with the text disguised and some with a direct reference).

Are you employed by linkspeed, are you an AI generated bot supported by linkspeed or do you have some sort of commission arrangement based on the number of clicks your posts generate?

Edited by GonePostal (Sun 21-Jun-26 12:17:43)

It's also some LLM-generated garbage