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Just wondering if this is the reason or is it something else.
I share my internet with my neighbour as my internet contract is coming to an end, anyway it was a rock solid 12-16 meg till about 3 weeks ago then I started getting random drops after midnight, then more often and the weekend 2 weeks ago on the Saturday the connection was so bad that it told me my ping was like 600ms.
The ping has been fine since but the speed varies but the last 2 days it has been awful, I have to keep moving my aerial to get a connection and often that only works for about half a hour before it needs moved again.
It seems fine after midnight but then only get slow speeds on my desktop(but fine on laptop)
Also when I try the microwave I lose connection completly.
When I try my own internet connection I get the full 16 meg no problem wirelessly
Since nothing has changed at all since it was first working fine just wondered possible reasons?
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Possibly another (new?) wireless user close to you is swamping the signal.
If you are using a Windows machine, download InSSIDer and have a look what channels and strengths you are up against. It gives a table and a graph.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Just had a quick look at what other signals are picked up by my pc, and one of my neighbours seems to of changed from Sky to BT(well a Sky connection has vanished and a BT one has suddenly showed up) so I wonder if their router is causing interferance.
Or it could just be network traffic as well
Will give that software a try if it doesnt improve.
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InSSIDer is far superior to what your OS says it can see. The channel strength and overlap are crucial.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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The 2 BT Connections say RSSI -69(and goes up to 72) max rate 130 (N)and are in orange.
The Livebox(my neighbours) comes up as -59- and as high as 64 max rate 54
Mine is -51 to -54 and in green max rate 54
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Your numbers are the wrong way round ...
-69 going down to -72 means that the power level is halved
-59 to -64 means the power drops by 70%
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M H C
taurus excreta cerebrum vincit
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That assumes they're proper "power" decibels (10 x log 10 (P 1 / P 2))
I always assumed they're actually voltage based (20 x log 10 (V 1 / V 2))
If anyone knows for sure which is right, I'd appreciate the information 
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The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
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Also forgot to say the wirelss channel is 1 on mine(Sky) 6 for the livebox, 1 for one of the BT and the other BT is on 11
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That assumes they're proper "power" decibels (10 x log 10 (P1 / P2))
I always assumed they're actually voltage based (20 x log 10 (V1 / V2))
If anyone knows for sure which is right, I'd appreciate the information
You are right, but RSSI is normally in dBm, dBW, dBk or similar.
Your formula of 20 x log 10 (V 1 / V 2) is only used when comparing power levels based on voltage or amplitude measurements. and is equivalent to 10 x log 10 (V 12 / V 22) and if you work out a drop of 3dB using either of your formulas the first gives 0.5x power and te second 0.71x voltage which (assuming a constant impedance) gives 0.5x power.
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M H C
taurus excreta cerebrum vincit
Edited by MHC (Thu 23-Jun-11 23:56:42)
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You've got the formulas wrong (look it up in Wiki, I cba'd to type them out again), but thanks for the info that it's power levels.
Edited by billford (Fri 24-Jun-11 00:02:32)
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The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
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Two on te same channel, especially if they are close and heavily used is NOT good - it can force the actual transfer rate well down to 5 of 10%
If you can see 1, 6, 1, 11 and nothing else you need to work out a channel sharing plan - as I have with my neighbours.
5 is the absolute best spacing but 4 can work quite well - so go for 1, 5, 9, 13 and push the two most heavily used out onto 1 and 13.
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M H C
taurus excreta cerebrum vincit
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Only one of them! I put a 20 instead of 10 - but now changed.
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M H C
taurus excreta cerebrum vincit
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but now changed. Ditto my post
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The author of the above post is a thinkbroadband moderator but it does not constitute an official statement on behalf of thinkbroadband.
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Agreed in principle, but in the OP's case the one he is using that gives the trouble is on Ch 6, well clear. Wierd.
I wonder if the wireless speed is really changing much, though if he is losing connection I suppose it must be. As the neighbour is on Orange, it may not be surprising that throughput has gone poor, as it could have been moved off LLU to BT Wholesale white label.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Well what I do notice is often when I might only get about 6 meg on desktop I would get 16 on laptop.
However when I can barely load web pages thats the same llow speed on both.
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Have been discussing an antenna earlier today - an electronically steered phased array for both Tx and Rx. Input power of over +16dbW (+46dBm) with 6dB of gain and designed to work well down at a receive level of around -150dBm ... It is not the antenna that deals with the received signal - but is has to minimise losses and distortion.
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M H C
taurus excreta cerebrum vincit
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A guess - the desktop is Windows XP, the laptop is Vista or Win7?
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Both are running Win 7 64 bit
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[Sulk]
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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I just tested with my laptop and was getting 10-12 meg but still slow on desktop.
I then shoved all the wires next to pc under my chair and the speed increased.
Could loads of usb cables and such surrounding router cause interferance as crazy as that seems?
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Not crazy at all. Also avoid signal cables and power cables running parallel close to each other, and signal cables runing over power supply units.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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A guess - the desktop is Windows XP, the laptop is Vista or Win7? Why's that? That's my config & XP Desktop always > Vista laptop.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU BB => 2010: Orange 19 Meg Tweaked / 16 Meg Untweaked LLU BB
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Weird, moved my pc about half a foot forward now get 16 meg on desktop.
I dont want it sitting here all the time though as its next to sofa so its hard to put a dvd or usb device in so was thinking of buying a N card or one of those aerials that are on a long wire that I can put the aerial in front of pc and have the cable going back.
Also picked up 3 more Sky networks.
Edited by deleted (Fri 24-Jun-11 01:08:20)
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Maybe you have also hit on the initial cause of the problem! If your neighbour has moved or turned their router ....
When I had a Linksys USB wireless connector, which had a metre wire from the USB plug to the actual kit, I found even an inch or so movement of either it or the Linksys WAG54GS router could be significant.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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A guess - the desktop is Windows XP, the laptop is Vista or Win7? Why's that? That's my config & XP Desktop always > Vista laptop.
I suspected part of the problem could be the "fixed" RWIN and MTU values on XP where Vista and Win7 normally auto-adjust fine.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost. Internet connection - IDNet Home Starter Fibre. Live BQM.
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Its dropped back down to like 4 meg now but at least I can browse the internet.
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