Did you get a case number from the Zen website? If so can access those tests and compare to your others and pass comment

I don't think there is anything wrong with the line, but rather once you hit some shared part of the network.

Thanks for joining in .

Thank you all. I shall do the search re SVLAN.

It does not affect the btw test so I have no solid proof apart from my real time feeling when downloading test file or doing TBB speed test.

Aaaargh seems like it will have to get much worse before it can get better.

You are really great thanks again for your time guys

If you look in my thread its the same, and other guy just posted the same man . http://forums.thinkbroadband.com/zen/f/4458979-slow-...

It might be time too look at others ISP but where ....

Im on zen LLU without pop presence in my exchange. Something to do with mother exchange I was told. so Is it Zen network struggling ?

Edited by deleted (Fri 29-Jan-16 21:15:04)

In reply to a post by aparat:

Im on zen LLU without pop presence in my exchange. Something to do with mother exchange I was told. so Is it Zen network struggling ?

It is still Zen's job to get "mother exchange" problems affecting you resolved. None of us on any ISP sign up to congestion at our exchange.

Speed slowdowns outside BT Wholesale's purview, i.e. after it leaves their systems for the www are one thing. We know that is bound to happen at times. BT Wholesale capacity failures are not.

Our ISP can have insufficient capacity. We know that. If they don't increase it, we move on. They either learn or lose customers.

Capacity issues under BTW's control, when its whole purpose is to provide sufficient throughput and charge ISPs enough to provide that but also make a profit, have to be accepted in the short term when they occur. But they can and should be fixed. Quickly.

The search I suggested the OP carry out is relevant, as the post I remember is about SVLANs and their capacity.

By mother exchange I meant thats how Im on Zen LLU not that there is a problem there, sorry. Zen said there is no problem if multi threaded download is fine. So I can not be bother sending more emails I think. Just slowly looking for another ISP just dont know where to look now but that might be a question for another thread. Dont want to hijack Kamils thread

Zen don't have LLU. That is just where samknows stick their non-BT Wholesale backhaul for them, to save creating a new category box for a single provider.

Quite how it works technically I admit I don't know. I believe on ADSLx it is between the user and the BTW MSAN but is then split off to Zen backhaul rather than through the BTW WBMC cloud to a handover point or points where the rest of their traffic is concentrated, and on FTTC is (perhaps) fed directly by Openreach to the Zen backhaul. Though the latter would require Zen to have a GEA link installed at the exchange, which is unlikely. So perhaps that too is somehow split out from BT Wholesale.

If I had second chance I would have gone with pulse8. been their customer past year and a half and not had any issues. only reason I went with zen was unlimited service slightly better price and past experience. what a silly thing to do

The difference between the multi-thread and single thread download tests are interesting.

As far as I can tell/understand the ISP network sees no difference between the two.

A single test will have one data stream between your routers IP address and the test sites IP address. I assume a multi-thread test uses the same IP addresses but with different originating port addresses. The port addresses are part of TCP protocol while the ISP network is responsible for the IP part - TCP on IP.

I wonder if you have a firewall that's not great on individual threads.

I'm on Zen FTTC and sync at 80/20 and testing reliably reports 75/18 although testing now with the family active I get this test result of 74/15.

The drop on the single thread test is interesting and I suspect buffer bloat in the router which can impact speeds.

As a whole my service is fast and reliable - I have a samknows box - and the thinkbroadband BQM has recent results like this.

My understanding of Zen's POP rollout is that they have kit in many BT exchanges and the backhauls from the exchange to Zen's core network are under Zen's control. Unfortunately I've not found a list of exchanges with POPs.

Thanks for your input

I can not access your bqm as it comes back with error.

The firewall theory I do not believe in as the issue only presents itself in the hours of high use of the btw network.

See this :

this morning

On the whole my connection works and I do not experience `stand still` like browsing or anything. It is frustrating tho on a supposedly 60meg line to not being able to watch HD streams without hiccups.

I hope zen will have a pop in my exchange soon. Although I seriously doubt that