It is not something you fix, but something you report to Zen who then fix it.

In reply to a post by MrSaffron:

It is not something you fix, but something you report to Zen who then fix it.

OK, I should let them see my TTB speedtest and say I want the single download to be as fast as the 6x?

Actually I'm now wondering if this will have an affect on my backups which run overnight. They go over a VPN to another Zen connection. How would I know if it uses a single or multi thread connection?

Thanks

Indeed you have a congestion issue, most things do not download or upload multi threaded, e.g. A netflix stream, amazon video stream etc are not multi threaded. You are very close to hitting issues streaming full HD on Amazon Instant Video for example.

Congestion also increases latency, so gaming etc will lag more than otherwise.

Backups are largely limited by upload not download so I imagine they are fine.

In reply to a post by ukhardy07:

Backups are largely limited by upload not download so I imagine they are fine.

Yes but I'm running backups in both directions. I 'm expecting to be able to receive backup data from another location at "up to" 20Mb, which is the available upload speed there. I guess if its only sending a single thread its slower than it could be? Not sure how to know or find out. ChronoSync FWIW.

Monitor the upload speed in task manager on windows or activity monitor on OSX.

If you use kaspersky, it skews these stats often (inflates them).

Is the single threaded issue with Zen a specific VDSL issue (I see most of you with a 80/20 connection test). I am about to sign up for FTTP 150/30 or so, will that still be an issue?

In reply to a post by FTTP2:

Is the single threaded issue with Zen a specific VDSL issue (I see most of you with a 80/20 connection test). I am about to sign up for FTTP 150/30 or so, will that still be an issue?

Zen specific, in essence Zen are not purchasing adequate capacity for the user base, a trick providers such as Tiscali, Wanadoo etc used to do years ago. The single thread is unlikely to rise if you opt for 150/30 as it's not meeting your current speed.

To give a reference here are a few of my tests, note the lines are both closely aligned indicating no congestion on most of the BT ones. Tests over WiFi on ISP supplied kit (BT HomeHub 6 and Sky Q Hub) so that can cause higher pings etc:
https://www.thinkbroadband.com/speedtest/14770058691... - BT
https://www.thinkbroadband.com/speedtest/14716296064... - BT
https://www.thinkbroadband.com/speedtest/14794785522... - BT
https://www.thinkbroadband.com/speedtest/14796806831... - BT
https://www.thinkbroadband.com/speedtest/14833184342... - BT
https://www.thinkbroadband.com/speedtest/15190894357... - Sky (some congestion apparent)
https://www.thinkbroadband.com/speedtest/14794785522... - Office leased line

In my view you stand to gain nothing by upgrading on Zen right now, as your single thread is where the real performance factor comes from and that will remain stagnant. Multi threaded downloads e.g. a torrent where it makes 50+ connections should speed up.

Edited by ukhardy07 (Fri 02-Mar-18 09:29:14)

I'd say its not Zen specific but backhaul provider specific, i.e. a backhaul provider has something configured for how each individual download is handled as load reaches a certain point.

Seems to be a lottery, as when I've looked at the stats in the past it is something affecting 10 to 15% of tests

The way you would see the single thread effect is those big hero images that websites love these days will be slow to download, even though other elements are already present

Ahhhh good point and a very valid distinction indeed.

In reply to a post by ukhardy07:

The single thread is unlikely to rise if you opt for 150/30 as it's not meeting your current speed.

Would you mind to explain this? I don�t quite understand what you mean: it�s not meeting your current speed.

Thanks!