Gigafast Slow Speeds

[jasperb182]

Hello All

I have had the vodafone Gigafast 900mb service in Milton Keynes now for about 3 months and am getting only 500-600mb download speed on my PCs. My router is detecting the speed at 1000mb. 

I have had a vodafone tech out but they have said that it is a known windows 10 issue.

I have updated all of the LAN drivers on all 3 of my PCs and replaced all of the network cables with Cat6, I have even upgraded the rubbish vodafone router with a Top of the Line Netgear XR500 but am still getting the slow speeds.

On the plus side my upload is around 1600mb

Has anyone else had this issue or any ideas on how to rectify this please.

I really dont need that much speed but as im paying for it it would be nice to get it working

Thanks Marc

[ctmkuk]

Hi Marc

What are you using to determine those speeds? Speedtest is renowned for not being accurate! How about looking at running iperf from your machine to a public iperf server. What do the results for that look like?

[Blair]

Hey @jasperb182, our Gigafast broadband has a dedicated team that will be able to help.  You can contact the Gigafast support team buy caling 191, free from a Vodafone mobile. Also you can call 03333 040 191 from other UK landlines or mobiles (standard call charges apply)

Blair

[jasperb182]

can seem to get this iperf to work :-(

[jasperb182]

Got it working now :-)

[jasperb182]

its telling me that im getting 250mb lol

the prompt im using is iperf3 -c speedtest.wtnet.de

[mbames]

Download the binaries (win 10, 64bit, for example - https://iperf.fr/iperf-download.php#windows)

unzip, open a command prompt and switch to where ever you unzipped the file, ie.  C:\Users\matth\Desktop\iperf-3.1.3-win64

the run the command:

iperf3.exe -c iperf.volia.net  (you can select alternative servers if any are busy from the list here: https://iperf.fr/iperf-servers.php)

Wait for the results:

C:\Users\matth\Desktop\iperf-3.1.3-win64>iperf3.exe -c iperf.eenet.ee
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
iperf3: interrupt - the client has terminated

C:\Users\matth\Desktop\iperf-3.1.3-win64>iperf3.exe -c iperf.volia.net
Connecting to host iperf.volia.net, port 5201
[ 4] local 192.168.100.101 port 60051 connected to 82.144.193.18 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.01 sec 512 KBytes 4.14 Mbits/sec
[ 4] 1.01-2.01 sec 512 KBytes 4.19 Mbits/sec
[ 4] 2.01-3.01 sec 512 KBytes 4.21 Mbits/sec
[ 4] 3.01-4.01 sec 384 KBytes 3.15 Mbits/sec
[ 4] 4.01-5.00 sec 768 KBytes 6.30 Mbits/sec
[ 4] 5.00-6.01 sec 1.00 MBytes 8.31 Mbits/sec
[ 4] 6.01-7.00 sec 1.12 MBytes 9.52 Mbits/sec
[ 4] 7.00-8.01 sec 1.25 MBytes 10.4 Mbits/sec
[ 4] 8.01-9.00 sec 1.12 MBytes 9.52 Mbits/sec
[ 4] 9.00-10.01 sec 1.12 MBytes 9.36 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.01 sec 8.25 MBytes 6.91 Mbits/sec sender
[ 4] 0.00-10.01 sec 8.13 MBytes 6.81 Mbits/sec receiver

iperf Done.

[jasperb182]

Thanks

That is telling me 40.2mb

[ctmkuk]

And you're paying for the 100mb gigafast service? Doesn't seem right does it! 

[jasperb182]

im paying for the 900mb service.

My router is connecting at 1gig but a speed test is only getting me 650mb ish and someone surgested tryting iperf.

[Blair]

Hey @jasperb182 did you contact our dedicated Gigafast team about this at all?

They've got the tools to test your service to see what's causing the bottleneck with your speed.

Blair

[Mozambezi]

Through Speeds for me on 100 Mb line (non issues )

Download around 30Mbp/s 

Upload 110 Mbp/s

Regular line drops  and server disconnections when gaming. It is not line related but Exchange oversubscribed.

Generally I feel cheated. First 3-4 months it was 100/100 

[ctmkuk]

Hi. Cheated sounds a bit strong! It's still much better service and probably cheaper than what you were paying before?! Take care how you measure it as well. SpeedTest and the like aren'e always the most accurate. Are you on the Vodafone supplied router? I've not had any drops since a 1 day outage a few months ago (see separate post). I'd be surprised too if the Exchange was oversubscribed for FTTP. That was a common problem for FTTC connections but the numbers for FTTP in MK are a lot lower at the current time. 

[mbames]

Could someone on VodaFone's GigaSlow service post a couple of traceroutes.

bbc.co.uk

img.com

reddit.com

ookla.btlancashire.co.uk

speedtest.vodafone.co.uk

It would be interestsing to see if they route traffic over the same shonky network that the FTTC users are forced to use.

[Mozambezi]

All standard, all working . I'm IT engineer. What follows from your reply - here is a traffic management in place. I like to watch IP HD TV.

In comparison with EE or BT broadband VF is cheaper indeed. But if I'm limited to 34 Mbps then it is more expensive than EE. Well ping now is 5ms against 9ms I had before.

[ctmkuk]

Here are a few of those. Wireless onto the Gigafast100 service

$ traceroute bbc.co.uk

traceroute: Warning: bbc.co.uk has multiple addresses; using 151.101.192.81

traceroute to bbc.co.uk (151.101.192.81), 64 hops max, 52 byte packets

1  192.168.50.1 (192.168.50.1)  4.591 ms  10.882 ms  3.903 ms

2  host-212-158-250-36.dslgb.com (212.158.250.36)  9.731 ms  22.872 ms  8.453 ms

3  63.130.104.198 (63.130.104.198)  8.783 ms  49.539 ms  8.628 ms

4  ae11-100-xcr1.hex.cw.net (195.89.96.1)  14.997 ms  10.636 ms  22.757 ms

5  lag-10.ear1.london1.level3.net (4.68.72.93)  10.181 ms  12.295 ms  10.176 ms

6  ae-1-3112.edge6.london1.level3.net (4.69.141.246)  10.153 ms

    ae-2-3212.edge6.london1.level3.net (4.69.141.250)  9.935 ms

    ae-1-3112.edge6.london1.level3.net (4.69.141.246)  17.942 ms

7  * * *

8  * * *

9  * * *

10  * * *

^C

$ traceroute speedtest.vodafone.co.uk

traceroute to speedtest.vodafone.co.uk (212.183.159.229), 64 hops max, 52 byte packets

1  192.168.50.1 (192.168.50.1)  4.517 ms  2.317 ms  4.018 ms

2  host-212-158-250-36.dslgb.com (212.158.250.36)  26.133 ms  25.647 ms  8.128 ms

3  63.130.104.198 (63.130.104.198)  62.239 ms  10.466 ms  13.589 ms

4  213.185.195.233 (213.185.195.233)  10.819 ms  10.743 ms  28.005 ms

5  * * *

6  * * *

^C

$ traceroute ookla.btlancashire.co.uk

traceroute to ookla.btlancashire.co.uk (194.150.176.123), 64 hops max, 52 byte packets

1  192.168.50.1 (192.168.50.1)  4.331 ms  3.974 ms  3.876 ms

2  host-212-158-250-36.dslgb.com (212.158.250.36)  8.789 ms  8.037 ms  8.528 ms

3  63.130.104.198 (63.130.104.198)  8.914 ms  18.192 ms  18.844 ms

4  linx-gw1.ja.net (195.66.224.15)  10.193 ms  10.663 ms  15.372 ms

5  ae23.londtt-sbr1.ja.net (146.97.35.169)  12.047 ms  10.871 ms  10.332 ms

6  ae27.erdiss-sbr2.ja.net (146.97.33.14)  14.604 ms  14.756 ms  15.133 ms

7  ae29.manckh-sbr2.ja.net (146.97.33.42)  18.695 ms  15.651 ms  23.228 ms

8  ae25.manckh-ban1.ja.net (146.97.35.50)  15.062 ms  16.537 ms  18.893 ms

9  lancs-council.manckh-ban1.ja.net (146.97.40.50)  14.938 ms  15.379 ms  15.411 ms

10  * * *

11  * * *

12  *^C

Chriss-MacBook-Pro-2:~ christagg$

[Mozambezi]

High ping and delays on Vodafone exchange hub.  No problems before and after. It just confirming what I said. VF infrastructure slowing down internet  traffic

[Blair]

Have you contacted our Gigafast team about this yet @Mozambezi?

We're not traffic shaping, and it's very unlikely that this is down to congestion. If you’re only having the issue on certain sites, or servers then there could be an problem further back on the network. Our Gigafast and 3rd lines teams will be able to help, they may need to pathpings and tracert's from you, but if we can locate where the bottleneck is occurring, we can get it sorted.

Blair

[Shooto]

Hi,

I have been following a few of the topics in the forums with interest, and I thought i would post my experiences with Gigafast so far.

I chose the Gigafast 900/900 (due to the £9 discount as an existing vodafone customer) service which was installed roughly a month ago. Like many I have been having some streaming issues via Netflix / Prime video. One time Amazon prime Video came up with a warning "I do not have enough bandwidth to play this video"  when trying to stream a 1080p link.

I use an NVIDIA Shield connected via Gigabit Ethernet within a few feet of the vodafone router.

I have been getting erratic speed tests results from speedtest.net / fast.com / think broadband some as low 30mbps down. I get similar results via two different computers that are also connected via gigabit Ethernet.

I have been in contact with vodafone support a few times for what seemed like an eternity trying to get through. I have been asked to email speed tests / traceroutes as requested for by the Level 3 support to look through. See what happens !!

Here is a traceroute from netflix.com - first is via vodafone - second is via a VPN. 

(Vodafone)

Tracing route to netflix.com [52.30.45.198]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  VODAFONE [192.168.1.1]
  2    11 ms    11 ms    11 ms  host-212-158-250-39.dslgb.com [212.158.250.39]
  3    12 ms    11 ms    11 ms  63.130.104.202
  4    11 ms    12 ms    11 ms  ae1.126.man.cw.net [195.89.96.113]
  5    12 ms    11 ms    11 ms  ae0-ucr1.mcr.cw.net [195.2.28.70]
  6    12 ms    12 ms    11 ms  52.46.166.196
  7    17 ms    18 ms    19 ms  52.93.80.36
  8    18 ms    18 ms    19 ms  52.93.80.47
  9    26 ms    26 ms    26 ms  54.239.45.203
 10     *       27 ms    27 ms  54.239.42.177
 11     *        *        *     Request timed out.
 12    48 ms    63 ms    34 ms  52.93.6.140
 13    27 ms    26 ms     *     52.93.101.53
 14    55 ms    63 ms    46 ms  52.93.101.60
 15    26 ms    28 ms    26 ms  52.93.7.143
 16     *        *        *     Request timed out.
 17     *        *        *     Request timed out.
 18     *        *        *     Request timed out.
 19     *        *        *     Request timed out.
 20     *        *        *     Request timed out.
 21     *        *        *     Request timed out.
 22     *        *        *     Request timed out.
 23     *        *        *     Request timed out.
 24     *        *        *     Request timed out.
 25     *        *        *     Request timed out.
 26     *        *        *     Request timed out.
 27     *        *        *     Request timed out.
 28     *        *        *     Request timed out.
 29     *        *        *     Request timed out.
 30     *        *        *     Request timed out.

Trace complete.

(Via VPN)

Tracing route to netflix.com [195.140.213.111]
over a maximum of 30 hops:

  1    18 ms    17 ms    17 ms  10.8.8.1
  2     *        *        *     Request timed out.
  3    18 ms    18 ms    18 ms  165.84.231.1
  4    18 ms    18 ms     *     be5308.rcr21.b015589-1.lon01.atlas.cogentco.com [149.14.248.49]
  5    20 ms    19 ms    19 ms  be2208.ccr22.lon01.atlas.cogentco.com [154.54.37.65]
  6    18 ms    18 ms    18 ms  ae7.rt0.thn.bandwidth.co.uk [149.14.147.194]
  7    18 ms    19 ms    19 ms  ae0.rt0-cr.ldn.as25369.net [5.226.136.29]
  8    19 ms    18 ms    19 ms  ae0.rt1-cr.ldn.as25369.net [5.226.136.7]
  9    31 ms    36 ms     *     ae0.30-cs0-cr.ldn.as25369.net [185.38.150.225]
 10    18 ms    19 ms    18 ms  111.213.140.195.dedicated.zare.com [195.140.213.111]

Trace complete.

Shooto

[jasperb182]

I also have the 900mb service.

I normally get ok speeds but the last week i have been geting only 100mb max. I been meaning to call them up but nit had time