High latency and slow browsing on XT Mobile internet

Forums › Spark New Zealand (including Skinny and BigPipe) › High latency and slow browsing on XT Mobile internet

Napster

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#92842 7-Nov-2011 19:26

Been having endless problems with our XT data connection.

We still have a few weeks to wait for broadband so if i can sort this issue that would be a bonus.

Latency has gone up from 50ms to 190+-. Havnt seen that 50ms for a long time.

I have 6 people living here and most of us have smart phones on data plans. So i would say the cell site is a bit full.

Is there anything that can be done about this? I can't game on this any more as local ON3 servers show 160-230ms.

freitasm

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Geekzone

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#542191 7-Nov-2011 19:27

Location, location, location?

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Napster

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Master Geek

#542196 7-Nov-2011 19:34

Oh yea :) Maraetai, Auckland

The cell site is 1 street over from us on Maraetai Drive.

sbiddle

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#542230 7-Nov-2011 20:56

How about a proper latecy test using pings, not using speedtest.net which can be highly inaccurate?

Napster

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Master Geek

#542239 7-Nov-2011 21:13

Yea true,

Traceroute below

Tracing route to geekzone.co.nz [202.175.128.164]
over a maximum of 30 hops:

1 98 ms 139 ms 109 ms 10.207.68.29
2 118 ms 99 ms 99 ms 10.207.68.46
3 99 ms 119 ms 119 ms 10.207.68.49
4 167 ms 249 ms 189 ms 10.207.79.49
5 * 1501 ms 1319 ms mdr-fid-dom.akcr10.global-gateway.net.nz [202.50
.238.50]
6 119 ms 109 ms 119 ms ae4-20.akcr10.global-gateway.net.nz [202.50.238.
49]
7 129 ms 119 ms 109 ms 122.56.127.1
8 147 ms 120 ms 109 ms orcon-dom.tkcr4.global-gateway.net.nz [203.96.66
.102]
9 148 ms 109 ms 119 ms xe-1-0-0.cre1.nct.orcon.net.nz [121.98.9.13]
10 108 ms 99 ms 129 ms 60.234.20.46
11 * * * Request timed out.
12 120 ms 119 ms 119 ms mail.geekzone.co.nz [202.175.128.164]

Trace complete.

akia

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#542347 8-Nov-2011 08:26

Might be worth also ringing 123 and logging a fault with them. Provide them this information and they can get the team to investigate fully.

sbiddle

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#542360 8-Nov-2011 08:44

That doesn't necessarily show anything wrong. Remember that ICMP traffic alone isn't necessarily enough to force a state change from rel 99 to HSDPA or HSPA+

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jaidevp

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Spark NZ

#542379 8-Nov-2011 09:24

Are you able to PM me your exact street address. A quick look at the site serving the area doesn't indicate an issue with performance, however it is a single carrier 850 site so is a little busy during evenings. Considering this I don't perceive an issue with the latency you are experiencing, would be more alarming if it was higher 300-400ms for that trace.
If you continue to have issues please log as a fault.

openmedia

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#542996 9-Nov-2011 10:06

I'm down in Wellington today with my new S2 on Telecom firmware and i'm really shocked at how bad my browsing performance is.

Ping to Citylink WLG is 291ms
Download 0.9Mbps
Upload 0.4 Mbps.

To New Plymouth ping is 137ms
Download 1.4 Mbps
Upload 0.7 Mbps

Overall all browsing local and international is very slow. I'll probably pop into the Telecom shop later today.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

sbiddle

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#543052 9-Nov-2011 12:08

How are you measuring those speeds and latency?

pwner

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2degrees

#543089 9-Nov-2011 13:16

Napster: Yea true,

Traceroute below

Tracing route to geekzone.co.nz [202.175.128.164]
over a maximum of 30 hops:

1 98 ms 139 ms 109 ms 10.207.68.29
2 118 ms 99 ms 99 ms 10.207.68.46
3 99 ms 119 ms 119 ms 10.207.68.49
4 167 ms 249 ms 189 ms 10.207.79.49
5 * 1501 ms 1319 ms mdr-fid-dom.akcr10.global-gateway.net.nz [202.50
.238.50]
6 119 ms 109 ms 119 ms ae4-20.akcr10.global-gateway.net.nz [202.50.238.
49]
7 129 ms 119 ms 109 ms 122.56.127.1
8 147 ms 120 ms 109 ms orcon-dom.tkcr4.global-gateway.net.nz [203.96.66
.102]
9 148 ms 109 ms 119 ms xe-1-0-0.cre1.nct.orcon.net.nz [121.98.9.13]
10 108 ms 99 ms 129 ms 60.234.20.46
11 * * * Request timed out.
12 120 ms 119 ms 119 ms mail.geekzone.co.nz [202.175.128.164]

Trace complete.

in a mobile network you can only see a traceroute from the GGSN towards the internet, all the backhaul from the cell site to the RNC and then onto the GGSN will be hidden in the results for the first hop. As you can see in this traceroute the majority of the delay is in the mobile network and not in the internet peering section so we know they don't have an issue there.
a first hop response of ~100ms is pretty normal for HSPA, so I would guess that the site you are on is having congestion issues with the HSPA+ channels either due to 'code' or 'channel element' limiting. things like modulation will only affect the max bandwidth, the channel it is processed through will affect the latency.
or in summary the site is busy :)

Any posts are personal comments and not that of my employer

openmedia

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#543118 9-Nov-2011 13:57

sbiddle: How are you measuring those speeds and latency?

My figures were for speedtest via a tethered laptop.. I poped into a nearby telecom shop to look into this as well as a couple of other issues and discovered I was only getting 3G data and not hsdpa. I forced the phone to reconnect to Telecom and the performance is a lot better.

Generally known online as OpenMedia, now working for Red Hat APAC as a Technology Evangelist and Portfolio Architect. Still playing with MythTV and digital media on the side.

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#543286 9-Nov-2011 19:26

Napster: Been having endless problems with our XT data connection.

We still have a few weeks to wait for broadband so if i can sort this issue that would be a bonus.

Latency has gone up from 50ms to 190+-. Havnt seen that 50ms for a long time.

I have 6 people living here and most of us have smart phones on data plans. So i would say the cell site is a bit full.

Is there anything that can be done about this? I can't game on this any more as local ON3 servers show 160-230ms.

Hold on; 191ms / 2.4Mb/s over the air and you are complaining?
That's faster than my Wired Orcon connection! Well minus 100ms ping.

Napster

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Master Geek

#543288 9-Nov-2011 19:38

lol only because in the next area over i can get 11Mb/s and 47ms.

I have only 1 option for internet out here and thats Telecom XT.

johnr

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#543290 9-Nov-2011 19:41

Napster: lol only because in the next area over i can get 11Mb/s and 47ms.

I have only 1 option for internet out here and thats Telecom XT.

Vodafone now has a 3G site close to the TCNZ site in Maraetai

Napster

202 posts

Master Geek

#546924 18-Nov-2011 14:48

Going to take a wild guess and say they have upgraded our cell site.

Getting much better speeds now :)

Thanks Telecom