slow downloads 2
Alan Lewer
downloads if I have the DI-604 router connected between my RiscPC and
NTL cable modem. By slow, downloading large files quickly slows to less
than 1kb/s, and aborts.
I contacted D-Link help, they sent me new firmware, I installed this
tonight at the SAUG meeting using the college Windows pc and (IT
manager!, thanks) and now downloads don't even start....
The brief experience is -
at home, on NTL, without router, and my RiscPC - ok downloads
at home, on NTL, with router, and my RiscPC - slow/no downoads
(depending on router firmware)
at the college, with router and my RiscPC - ok downloads on old and new
firmware!
Soooo if I've got it right, the problem is not my RiscPC
and would appear to be some incompatibility between NTL and my router
I am now filled with foreboding - how do I convince either that it is
their problem?
It has been suggested that it may be due to the MTU size - how does one
change this please?
The NIC is a Simtec 10/100
Alan
--
Alan Lewer
Hampshire, England
Alan Lewer
In message <4bdfe641...@segfault.co.uk>
pv <nos...@segfault.co.uk> wrote:
> In article <b4579cdf4b...@ntlworld.com>,
> Alan Lewer <alan...@ntlworld.com> wrote:
> > The brief experience is -
>
> > at home, on NTL, without router, and my RiscPC - ok downloads
>
> > at home, on NTL, with router, and my RiscPC - slow/no downoads
> > (depending on router firmware)
>
> > at the college, with router and my RiscPC - ok downloads on old and new
> > firmware!
>
> Erm, have you got the correct router? I presume the college is using some
> form of ADSL broadband down a BT telephone line. Are you sure you've not
> got some bizarre NTL Cable solution at home which would require a cable
> modem rather than an ADSL router?
>
well it's the router RComp sell for NTL broadband connection..I don't
think Itchen College is ADSL - downloads were running at 300kbytes/s.
> I'm not quite sure how the NTL cable solution works, so I may be talking
> rubbish here. :-) However, if it's coming down the TV cable line it will
> probably require different hardware to the standard ADSL telephone
> connections.
>
Yes, as I understand it, there is a broadband modem in my NTL STB. This
has an ethernet output. My router needs to be and is set for DHCP, and
has the additional functions of providing a 4-way bridge (which will be
useful when I get another computer) and a firewall.
So since one of the nice things Select provides is DHCP, I can connect
to the cable modem with or without the router.
Darren Salt
> Well the plot thickens - the problem I had was that I experience slow
> downloads if I have the DI-604 router connected between my RiscPC and NTL
> cable modem. By slow, downloading large files quickly slows to less than
> 1kb/s, and aborts.
> I contacted D-Link help, they sent me new firmware, I installed this
> tonight at the SAUG meeting using the college Windows pc and (IT manager!,
> thanks) and now downloads don't even start....
> The brief experience is -
> at home, on NTL, without router, and my RiscPC - ok downloads
> at home, on NTL, with router, and my RiscPC - slow/no downoads (depending
> on router firmware)
[snip]
Interesting... you don't actually need the router, at least for one
machine...
Your external IP address appears to be 81.99.122.119; this is presumably the
IP address attached to the STB's modem interface. *Presumably* the STB's
Ethernet interface has an RFC1918-compliant address, and so does the
"external" Ethernet interface of the router (because that's what it's been
given by the STB).
If that's right, then the STB should be providing port forwarding and NAT
(i.e. it should be acting as a router). So you should be able to connect a
switch to it and your Risc PC (and other machines, as and when) to the
switch...
Or does the STB provide only a single address for local use via DHCP?
--
| Darren Salt | d youmustbejoking,demon,co,uk | nr. Ashington,
| RISC OS, | s zap,tartarus,org | Northumberland
| Linux | @ | Toon Army
| We've got Shearer, you haven't
You will be the last person to buy a Chrysler.
Grant Randall- Spam trapped
In an earlier reply to Alan, I described the success I had with NTL direct
into my RISC PC NIC using DHCP.
The cable supplied by NTL to go into the NIC is, I was told by NTL some
sort of cross over. Is it possible that the router requires a straight in
cable?
Chris Hughes
You need a normal patch cable - not cross over. If your description of the
setup is correct. About a pound from the right people.
--
Chris Hughes
Dave Higton
Grant Randall- Spam trapped <grant.rand...@ntlworld.com
wrote:
> In article <e331f6df4b...@ntlworld.com>,
I don't think so. If Alan had the wrong type of cable, it would not
work at all - it wouldn't be just slow.
Dave
Alan Lewer
Dave Higton <daveh...@dsl.pipex.com> wrote:
Indeed - I have a cross-over adapter provided by NTL in the connection
on the STB. And just to be sure, tried connecting without it - the
result was same performance, so there must be auto-sensing in the
router.
I'm still pursuing the problem - amongst the interesting things I learn
today is that NTL do not like networking, and don't support it. They
checked my link again - it was 15ms ping. They suggested it could be the
firewall in the router causing problem - I've tried it set to DMZ which
as I understand it means no firewall, and its no different.
Not given up yet!
mur...@inetum.com
I an having a similar problem with the DI-604 (and an SMC Barricade)
with a Terayon cable modem. Fortunately my ISP onced worked with
Terayon and we think we may be going down the right road.
We have had the same experience with the DI-604 that downloads are
slow or non-existant. Direct connections are fine. We think the
problem is a combination of the firewall's NAT and the manner in which
the Terayon cable modem system works (ARP proxy for traffic
isolation).
Do you know if the cable system you are on is using some form of ARP
proxy? What make and model of cable do you have at home?
I would doubt ARP proxy at your college so the DI-604 works fine.
So I would concur that the problem is a combination of the firewall
and the DI-604.
Let me know if you have any success and I will do the same.
Thanks,
Murray
Alan Lewer <alan...@ntlworld.com> wrote in message news:<e159a8e04b...@ntlworld.com>...
Alan Lewer
mur...@inetum.com (murray-...@inetum.com) wrote:
> Alan,
>
> I an having a similar problem with the DI-604 (and an SMC Barricade)
> with a Terayon cable modem. Fortunately my ISP onced worked with
> Terayon and we think we may be going down the right road.
>
> We have had the same experience with the DI-604 that downloads are
> slow or non-existant. Direct connections are fine. We think the
> problem is a combination of the firewall's NAT and the manner in which
> the Terayon cable modem system works (ARP proxy for traffic
> isolation).
>
> Do you know if the cable system you are on is using some form of ARP
> proxy? What make and model of cable do you have at home?
>
I don't know about ARP proxy, sorry.
The cable modem is inside a NTL STB - Pace DiTV 1000 phase 1b.
> I would doubt ARP proxy at your college so the DI-604 works fine.
>
> So I would concur that the problem is a combination of the firewall
> and the DI-604.
although for me, switching off the firewall made no difference....
>
> Let me know if you have any success and I will do the same.
>
> Thanks,
> Murray
re success I posted this yesterday -
Well after much diddling around, and some good help from RComp, my
problem with slow downloads has been resolved - adding an ethernet
switch between the D-Link DI-604 and the NTL broadband cable modem
results in fast ie 70kb/s downloads....
Apparently, according to D-Link help, there is a "known problem"
(but not to all of their help desk people!!) with certain geographical
areas of NTL's network, and it was they who advised the use of the added
switch.
In addition, they apparently offer to replace the DI-604 with a DI-804V
free of charge to rectify such happenings.
So this will be of interest to anyone in the Portsmouth area of NTL...
Grahame Parish
Hi,
I'm having the same problem with a similar setup. I've got a DI-604
connected to the STB, and since a failure of my old PACE box a couple of
weeks ago, my d/load speeds are right down (2 - 6Kb/s) on a 176MB file.
My box was replaced with a newer version (don't know the model of either
box off hand). I followed your advice of adding a switch into the WAN
cable, and the same d/load continued at 66 - 71Kb/s until completion. I'm
in Aylesbury and my speeds were OK before the STB swap.
Who is replacing the DI-604? Mine came from RComp as well, but is it
DLink that is replacing them, and how do you go about it?
Cheers.
--
Grahame Parish
maillistDOTparishATmillersHYPHENwayDOTcom
Alan Lewer
Grahame Parish <spam...@millers-way.com> wrote:
snip
> > Apparently, according to D-Link help, there is a "known problem"
> > (but not to all of their help desk people!!) with certain geographical
> > areas of NTL's network, and it was they who advised the use of the added
> > switch.
>
> > In addition, they apparently offer to replace the DI-604 with a DI-804V
> > free of charge to rectify such happenings.
>
> > So this will be of interest to anyone in the Portsmouth area of NTL...
>
> Hi,
>
> I'm having the same problem with a similar setup. I've got a DI-604
> connected to the STB, and since a failure of my old PACE box a couple of
> weeks ago, my d/load speeds are right down (2 - 6Kb/s) on a 176MB file.
> My box was replaced with a newer version (don't know the model of either
> box off hand). I followed your advice of adding a switch into the WAN
> cable, and the same d/load continued at 66 - 71Kb/s until completion. I'm
> in Aylesbury and my speeds were OK before the STB swap.
>
> Who is replacing the DI-604? Mine came from RComp as well, but is it
> DLink that is replacing them, and how do you go about it?
>
> Cheers.
>
ok I understand from RComp that Grant Bell at D-Link UK is the man to
contact to seek replacement of the DI-604. I'm not sure I'm going to -
not least because I have a working broadband now, with the switch in
place, and also I don't know if the DI-804v set up web page can be
accessed by RiscOS browsers (I dont have a pc).
If you do pursue D-Link I'd be very intetested to know if you can set it
up using RiscOS!
My experience of trying to conctact D-Link UK help is not good - three
phone calls to UK help were all auto transferred to Copenhagen after 10
minutes or so....so may be more effective to email to
sup...@dlink.co.uk and mark email for Grant Bell attention.
Good Luck!!
Alan