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Broadband Connection Tests

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Ok - a little knowledge is dangerous!

I have just changed my Broadband.

Running Speedtest.net and Pingtest.net

My speed is up to the advertised speed, dependent on server used for the test.

The pingtest shows "packet loss" and unable to complete the packet loss test.

How concerning is this and what can be done about it?

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Ok - a little knowledge is dangerous!

I have just changed my Broadband.

Running Speedtest.net and Pingtest.net

My speed is up to the advertised speed, dependent on server used for the test.

The pingtest shows "packet loss" and unable to complete the packet loss test.

How concerning is this and what can be done about it?

Packet loss is not good news, happily Speedtest and Pingtest are being gradually accepted by ISPs as being kosher, contact your ISP and supply them with the details of the tests.

Edited by SaSfan

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Ok - a little knowledge is dangerous!

I have just changed my Broadband.

Running Speedtest.net and Pingtest.net

My speed is up to the advertised speed, dependent on server used for the test.

The pingtest shows "packet loss" and unable to complete the packet loss test.

How concerning is this and what can be done about it?

Packet loss is not good news, happily Speedtest and Pingtest are being gradually accepted by ISPs as being kosher, contact your ISP and supply them with the details of the tests.

Agreed packet loss is a bad. The thing to know is quite a few Internet access providers filter/drop ICMP packets used by Ping, so the packet loss might be intentional and not affect typical usage. If the Packet loss was real it would normally also show up download 'speed' test as well.

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Agreed packet loss is a bad. The thing to know is quite a few Internet access providers filter/drop ICMP packets used by Ping, so the packet loss might be intentional and not affect typical usage. If the Packet loss was real it would normally also show up download 'speed' test as well.

Thank you both.

I note that from time to time, webpages stop half formed - if that makes sense.

They come up in rudimentary format, stop like that for a few moments then format as a complete page. The "elements count" window will stick at (say) 10/105 for while then complete

Is this indicative of real packet loss?

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Thank you both.

I note that from time to time, webpages stop half formed - if that makes sense.

They come up in rudimentary format, stop like that for a few moments then format as a complete page. The "elements count" window will stick at (say) 10/105 for while then complete

Is this indicative of real packet loss?

Perhaps, if it happens on every site it is probably packet loss at your end, if it is just a few sites it is more likely to be an over/heavily loaded web site server. Packet loss does get detected by internet software which will automatically ask the server to resend the missing data.

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During the day I get around 3.8 to 4.5mb but tonight I'm getting 0.29 its like bloody dial-up, its making modding hard work.

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During the day I get around 3.8 to 4.5mb but tonight I'm getting 0.29 its like bloody dial-up, its making modding hard work.

Is your router attached directly to the master socket into a filtered faceplate?

I had a similar issue - replaced the existing master socket faceplate and my speed increased from a max 2Mb to 5Mb and now rarely drops below 4Mb.

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Is your router attached directly to the master socket into a filtered faceplate?

I had a similar issue - replaced the existing master socket faceplate and my speed increased from a max 2Mb to 5Mb and now rarely drops below 4Mb.

Yes its plugged in at the point that the BT line enters the house, I will remove the cover tomorrow and plug it into the test socket. I've been complaing for months that the phone line sound dirty, and the couple who live next door have the same problem but BT do tests and say its fine.

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Yes its plugged in at the point that the BT line enters the house, I will remove the cover tomorrow and plug it into the test socket. I've been complaing for months that the phone line sound dirty, and the couple who live next door have the same problem but BT do tests and say its fine.

If you have any telephone extension wiring a filtered faceplate would be worth trying as it would stop any interference you could have.

Lot's of usefull info here http://www.skyuser.co.uk/forum/ about getting the best possible connection speed.

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At 8am this morning I'm getting no packet loss, Ping time of 120ms download speed of 6.33mbps upload 0.36mbps. The BT test page says the max my for my line is 7616, profile 6500. Interesting to see how it decreases during today.

Yesterday evening I ran System suite 10, cleared out a load of crap but diagnostic came back fine but still got under 0.40 mbps which makes monitoring the mod stuff painfully slow.

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At 8am this morning I'm getting no packet loss, Ping time of 120ms download speed of 6.33mbps upload 0.36mbps. The BT test page says the max my for my line is 7616, profile 6500. Interesting to see how it decreases during today.

Yesterday evening I ran System suite 10, cleared out a load of crap but diagnostic came back fine but still got under 0.40 mbps which makes monitoring the mod stuff painfully slow.

Just run a new test at 3:40pm, Download 0.75mbps up 0.31mbps

I'm only about 1.5 miles from exchange, I dont believe everyone in my village is all down loading porn at the same time?

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Just run a new test at 3:40pm, Download 0.75mbps up 0.31mbps

I'm only about 1.5 miles from exchange, I dont believe everyone in my village is all down loading porn at the same time?

Doesn't matter how close you live to the exchange, the physical route to your house may be miles and miles.

Give you an example at my workplace, about half a mile from the local bt exchange in not exactly a village, but not exactly a massive town either, we had some new high capacity kilostreams installed to provide our 'connection' with the outside world, upgrading our WAN at the same time, you would think, being half a mile away it would be a fairly easy run to the building, by the time the BT survey enginners had finished the only viable cable route to site went almost the full distance around town before entering the site, a total run of several miles.

When I questioned this they said something along the lines of 'that's the only access point into the town and historically we've always used that, you can pay to dig up half the town if you want a more direct route, be prepared to pay lord know whats and spend the next year in discussion with the local highways planning authority if you do.'

So a potential short distance turned into a huge great cable run around the town.

Fun times.....

If you do know anyone in the telecoms industry who has access to your local exchange, get them to a end to end test on the line and measure it, you migt be suprised as to how long it actually is..

Edited by Mr Jones

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You can try the following method to test the line yourself.

When installing ADSL services it is always handy to be able to run a very simple test on the phone line. This test is not the most scientific, and relies on the sensitivity of the human ear, but it works great.

Learn about some simple engineer tests you can perform on your telephone line.

Before I go any further I need to point out that this test is for British Telecom (BT) analogue phone lines in the UK only. There are likely similar test services out there for other services, but I don”t know of them.

Testing from the local exchange to your building.

In order to rule out interference from inside the building it is important you test at the master socket. This socket is where the copper pair from the street enters your house. You can remove the front panel from the master socket which will disconnect all extensions in your house and reveal a single phone socket. This phone socket is a direct connection to your street.

Connect a good telephone into your master socket and dial 17070.

At the time of writing you hear a female pre-recorded voice say:

This circuit is defined as 01234 123123.

BT line test facilities.

Please press 1 for ring back, 2 for quiet line, 3 for fast test, 4 for fast cleanse or clear down.

[message repeats 3 times]

Select option 2 (quiet line) and listen to what you hear. You should hear perfect silence on the line – there should be no pops, clicks, whistles, buzzing and the like. If you do not hear silence first check it isn’t the phone you are using, wiggle the cable a bit to see if that affects it, if not then you know you have a problem with your line to the BT exchange. Any problems with ADSL connectivity (low speed, connections always dropping, etc) are likely caused by this.

You can now put your master socket together again and re-enable all the phones in your house.

Testing the internal wiring of your building.

So you’ve performed the test at the master socket and all sounds good.

Now you can perform the exact same test again, but this time with a phone where your ADSL modem would connect in. This should include any and all telephone extensions you intend to use.

If you hear noise on the line now you can deduce that the interference is coming from inside your house.

Things to check for are telephone cables running near transformers or motors and compressors, faulty equipment on the line introducing noise. Hopefully by removing equipment and tracing back the line you will be able to identify the source of the noise and replace/remove it.

How far from the local exchange are you?

The BT line test facility allows you to obtain your distance from the exchange. To do this dial the same line test number (17070), select option 3 (fast test) then option 1 (to say you are authorised). Then press option 2 (ring back test) and replace the handset.

After about 10 seconds you will be called back and one of the pieces of information returned will be the distance from the exchange (in kilometres). I understand BT engineers normally repeat this test 3 times and take an average. The results itself are calculated by sending a low amplitude high frequency signal down your line and listening to the farthest reflection (at your house) – therefore they are likely to vary by 100 meters or so.

The number doesn’t work for me, all I get is ”There is no CLI detected for this circuit”.

This means you have Caller ID blocked on your line. To get around this dial instead 1470 17070.

Edited by The Dentist

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