[Wylug-help] Broadband Internet Help

Fri Nov 3 20:01:01 GMT 2006

On Thu, 2 Nov 2006, david powell wrote:

> On Wednesday 01 November 2006 11:37 pm, Paul Scorer wrote:
> > I note a number of other replies to this, but here is my £0.01 worth:
> >
> > *	I have heard of multiple phones on one filter blowing up an adsl
> > filter.
> yes
> but interestingly the ren number capacaty that a adsl filter supports is not
> given
> i would only recommend 2 phones per filter
> i have one of the old bt phones with the rotary dial , that needs a filter by
> its self

OK I've got a cold and may not be thinking clearly here - but off hand I
can't think why the REN number should have much relevance to an ADSL
filter?

The REN number is an indication of the load the device places on the
phone line i.e. how much current it will take when the ringing signal is
on the line. If there is too much load then the either the BT lines
drivers won't cope, or  there will be too much voltage drop
on the line.

An ADSL filter essentially is a passive low-pass AC filter. While such a
device will obviously have current limits, I'd wager that they'd cope with
normal house REN loads. We are not talking about serious currents here -
if an ADSL filter blew because of the load of 2 REN then the coils must
have been wound with fuse wire :-)

>
> >
> > *	I use one filter per socket with wired-into-the-house phone lines - so
> > significant run lengths to each phone from the bt socket - certainly >
> > 15m.
> >
> > *	I had _exactly_ this problem (of random, unsolicited disconnection)
> > using a speedtouch usb modem, using an IPCOP firewall / router / ... as
> > a separate machine, "feeding" a home network.
> >
> > *	I took it up with BT (who are my isp - why, you may well ask!). They
> > were not able to help.
> >
> one of the other problems is noise , the phone can work fine all of the time
> but random disconnects can happen
>
> this is when the signal gets corrupt
> maybe soething like a radio repeater can crooupt it intermitantly
> theres no real fix if its to do with something like that
> had  a simalar problem when i was with bulldogadsl
> but what was more of a problem was having a dinamic ip
> when the line drops and reconnects
> usualy an outage of 10 to 20 seconds causing up to a 2 min fail to get the
> adsl logged back in only to find you lost the download because your ip
> changed
> changing to a isp with a fixed ip makes it better
>
>
> > *	I happened to find a pci conexant chip set adsl modem card. I
> > installed it (mainly to reduce unnecessary wires) and have not had a
> > disconnection since - 35 days so far, compared with 2, 15, 1, 8000, 22,
> > 10, 500, ... _minutes_ previously. I am impressed.
> one of the advantages of having a router external to the pc is that you can
> have the router positioned by the master bt socket and run the network cable
> to the pc from there ( theres a wire to run to the pc anyway whatever way you
> do it unless using wifi that is )
>
> >
> > *	My card was "second hand"  from the shop - i.e. a return. I have no
> > suggestions as to where you might find one. Sorry. Mine came from Maplin
> > in Leeds.
> >
> > MTWH
> >
> > PaulS
> >
> theres one other thing i would say to aviod  usb based asdl modems
> but this is because i have more than 1 machine running and it would require
> the machine with the usb modem to be on all the time for the others to have
> internet access and using lots of usb devices causes lots of collisions
>
> you will find that if using a usb adsl and a usb webcam , usb mouse and usb
> printer that you may lose connection because of usb data collisions this can
> be the source of alot of the disconnections also
>
> David
>
>
> > On Fri, 2006-10-27 at 08:15 -0400, hxi3 wrote:
> > > Hello,
> > >
> > >
> > >
> > > I have been having some frustrating difficutlies with my ADSL connection,
> > > and was hoping that you might be able to spare a few minutes and give me
> > > some advice.
> > >
> > >
> > >
> > > About two weeks ago, I signed up for Virgin broadband.  My decision was
> > > based upon their unlimited download allowance, one month contract, and
> > > availability in Halifax.  Since that time, I have experienced frequent
> > > dropped connections--while I'm surfing the internet, the connection will
> > > be cut off out of the blue.  There is no rhyme or reason as to when the
> > > connection is dropped.  It can happen during a download, or when the
> > > connection is idle.  It can happen at peak usage times and during the low
> > > usage times.
> > >
> > >
> > >
> > > I have contacted Virgin, and they have suggested that I plug directly
> > > into the BT test socket in my home--it is the socket just after the BT
> > > line enters the house.  To be fair, this fix has dramatically reduced the
> > > dropped connections.  However, I'm still experiencing some interruption
> > > in service.  Do you have any ideas on what could be causing the dropped
> > > connections?
> > >
> > >
> > >
> > > I am using a Speedtouch USB ADSL modem that was supplied free of charge
> > > by Virgin.  It is worth noting that my USB modem is located at the end of
> > > a 15m telephone extension cable.  Could this be corrupting the signal in
> > > any way?  It has been suggested to me that a broadband router would
> > > provide a more stable connection and that network cable is much better at
> > > carrying a signal over long distances, however I don't want to spend
> > > money chasing this potential solution without getting some feedback
> > > first.
> > >
> > >
> > >
> > > Finally, have I made a mistake in chosing Virigin for my broadband
> > > service?  Is there a better company out there that you could recommend if
> > > my troubleshooting efforts don't work out?  I have considered cable, but
> > > unfortunately, it is not available in my area.
> > >
> > >
> > >
> > > Any help, advice or recommendations would be very much appreciated.
> > >
> > >
> > >
> > > Thanks,
> > >
> > >
> > >
> > > John
> > >
> > >
> > >
> > > PS:  Here is my computer setup
> > >
> > > Core 2 Duo 2GHz w/ 2 GB RAM running Suse 10.1/Windows XP dual boot.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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