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111 posts

Master Geek

#119352 29-May-2013 11:43
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I am experiencing extremely volatile performance from our TC cable-based Warpspeed connection and struggling to identify the cause.

Our internet experience is extremely variable, being quite good at times, but increasingly terrible - to the point of unusable - at others, and not in any apparently predictable way.

The bad news (from my point of view) is that using the VF/TC Speedtest on a wired PC connected via a Gigabit port to our router (TPLINK WDR3600), most of the time reports about nominal 100/10 performance. Even using the OOKLA site, and the Chch Snap Internet server, reports satisfactory 30/10-type speeds. On some occasions though, the speed testing is noticeably 'bursty' (stop/start) and on a few trials it will either take a long time to connect or fail to connect at all, usually for the upload test

But who uses wired devices anyway? (Don't answer that.) 

Performance on a range of wireless devices, including phones and laptops, is appalling. Occasionally we'll get a purple patch of 20/7 - type performance. For the most part though, the download speeds fluctuate wildly between 0.4 and 10 and the upload speeds are commonly 0.05 if they work at all. Once again, usings suggests that performance is very bursty (i.e. short periods of good throughput and long intervals where nothing happens), and the uplink is particularly badly affected.

The obvious conclusion is that the problem is local wifi performance and with that in mind I'm posting a complementary query in the LAN forum. However, using the common tools available to monitor wireless connections and performance I can't see an obvious problem, and some aspects of what we are experiencing sound very similar to more general TC-related network issues I am seeing discussed here.

I'd be grateful naturally for any suggestions of either things to check for, or methods or tools to determine what the heck's going on.

PS: This is my second attempt to post this. The first time the connection was so slow it wouldn't complete the post.

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Uber Geek

Lifetime subscriber

  #827628 29-May-2013 11:43
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Hello... Our robot found some keywords in your post, so here is an automated reply with some important things to note regarding broadband speeds.



If you are posting regarding DSL speeds please check that



- you have reset your modem and router



- your PC (or other PCs in your LAN) is not downloading large files when you are testing


- you are not being throttled by your ISP due to going over the monthly cap



- your tests are always done on an ethernet connection to the router - do not use wireless for testing



- you read this topic and follow the instructions there.



Make sure you provide information for other users to help you. If you have not already done it, please EDIT your post and add this now:



- Your ISP and plan



- Type of connection (ADSL, ADSL2, VDSL)



- Your modem DSL stats (do not worry about posting Speedtest, we need sync rate, attenuation and noise margin)



- Your general location (or street)



- If you are rural or urban



- If you know your connection is to an exchange, cabinet or conklin



- If your connection is to a ULL or wholesale service



- If you have done an isolation test as per the link above



Most of the problems with speed are likely to be related to internal wiring issues. Read this discussion to find out more about this. Your ISP is not intentionally slowing you down today (unless you are on a managed plan). Also if this is the school holidays it's likely you will notice slower than usual speed due to more users online.



A master splitter is required for VDSL2 and in most cases will improve speeds on DSL connections. Regular disconnections can be a monitored alarm or a set top box trying to connect. If there's an alarm connected to your line even if you don't have an alarm contract it may still try to connect so it's worth checking.



I recommend you read these two blog posts:



- Is your premises phone wiring impacting your broadband performance? (very technical)



- Are you receiving a substandard ULL ADSL2+ connection from your ISP?

I am the Geekzone Robot and I am here to help. I am from the Internet. I do not interact. Do not expect other replies from me.


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5877 posts

Uber Geek

Retired Mod
Lifetime subscriber

  #827681 29-May-2013 12:30
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Wireless will always have speed deficiency, and sometimes partly to do with the router itself.

I use Apple Airport Extreme and Express, both have simultaneous Dual-Band (2.4/5 GHz) and works sweet wirelessly.

I guess you will need to check your router, try update the firmware, or borrow someone else's router and give it a try. If it is not a dual-band, consider looking upgrading it. AC1200 would be a good choice to go for nowaday, as it is fully backward compatible to A/B/G/N and might add extra range to those as well.

Good luck.

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