Thanks for the info - just to be clear, are you suggesting any issue is in the Cab, Exchange or Router - sorry to be dense!

Edited by davidmatthewson (Fri 24-Jan-25 19:05:17)

In reply to a post by Stoatwblr:

This is... interesting... Zen have been telling me there are no similar cases

What part of the UK are you in (SE here, LSLEA) and what kind of cabinet are you connected to? (Huawei or ECI?)

If there are more people with similar issues it adds to the corpus that there's a very real issue they need to deal with properly, instead of just brushing people off

Sadly that is Zen's standard response nowadays.

Yes and extremely disappointing

Unfortunately this is what happens when accountants take over companies

I suspect I'll be moving on if it's not resolved. A&A beckons

==

Given the lack of commonality, it can't be routers or cabinets and is unlikely to be the exchange controller (they're different for Huawel and ECI even if both are in the same exchange - as is the case in Leatherhead due to a replacement program being underway when Boris's edict on Huawei came down and stopped it along with the FTTH rollout)

It's possible that the issue is the regional node in BT's backhaul to Zen and it would be interesting to see if the sawtooth shows up other areas of the UK or only in the Southeast

I think I have a similar problems of dropouts, 2 or 3 times a day lasting a minute or so (often once during early hours) since the last week of 2024. I am on IDNet SOGEA but I believe ZEN provide the backhaul. Of course when I speak to IDNet support the system no problems are found. I have done all the usual internal checks trying other modem, router and cables, and I am convinced the problem is on the other side of the master socket. I am in Cheltenham (GL51).

My Broadband Ping

OK, I've done some more playing and replaced the Fritz with a Draytek 2865 - and it is rock solid. The saw tooth dropped packets display vanishes totally. So some Fritz artifact perhaps? [see pics]
https://pixeldrain.com/u/ZAw7dW4w
https://pixeldrain.com/u/gHq99gfY
I'm staying with the 2865 for now as I find the Fritz a bit too basic for what we need - esp. VPNs and no SNMP.

D

Edited by davidmatthewson (Wed 29-Jan-25 09:51:25)

The pattern in the graph you just posted is completely unlike what I'm seeing and looks like a different issue

I have no doubt you're seeing "something" with the Fritz. The question is what it is

Given past experience as an ISP owner and banging heads against Telcos, I'm fairly sure the issue is inside Openreach and that solving it will be a long and involved process

When persistent line/connection problems exist, a good ISP willing to push the issue is like gold dust. There's a huge need to collate data to look for common faults on one cabinet/concentrator.

In one instance the data I'd collated on faults reported/experienced by MY customers enabled the telco to verify that field contractors were "farming" faulty cables by simply moving customers onto different pairs as the complaints came in - once the telco was aware of the scale of the issue they replaced half the street feeders in one town and all the issues went away (This also made me public enemy number one as far as those contractors were concerned because their steady income was slashed by 80%)

In this instance the problem is considerably further upstream and bears some resemblence to what I saw with overloaded Frame Relay connections in the 1990s