🚀 go-pugleaf

Dave Porter <dave@radiopages.co.uk> wrote:

> I have a G3 Powerbook 250. Nice machine, and fast, but I have a problem
> with the internal 56k Modem.
> 
> I works fine for faxing and seems to work okay for coms, but when I connect
> to the internet it doesn't work at all well. It usually starts okay and
> will download, news, web pages etc fast, but then it seems to stall and
> will download only briefly and stop again. After a few minutes of this, I
> get an error message saying something like:
> 
> Open Transport  - you have been disconnected.
> 
> Bearing in mind that that it's fine for faxing, this seems to be an OT
> problem and not a modem problem, I'm using version 1.3 with Mac OS 8.1.
> 
> However, I have connected an extenal Pace 56K modem to it, and eveything
> works perfectly, implying that it's not OT but a modem problem!
> 
> Has anyone had a similar problem, or have the faintest idea what could be
> wrong?

If you're using OT/PPP, try FreePPP. If you're using FreePPP, try
OT/PPP. Switching over (to FreePPP) cured this one for me!

Otherwise, it could be something in your modem init script. Perhaps try
in demon.ip.support.mac ...?

-- 
Mark Etherington @ London UK
mark@roxley.demon.co.uk

In article <1de338x.1bo30zz1rsizr2N@roxley.demon.co.uk>,
mark@roxley.demon.co.uk (Mark Etherington) wrote:

>If you're using OT/PPP, try FreePPP. If you're using FreePPP, try
>OT/PPP. Switching over (to FreePPP) cured this one for me!
>
>Otherwise, it could be something in your modem init script. Perhaps try
>in demon.ip.support.mac ...?

Thanks for that Mark. In frustration I phoned Apple yesterday. They say
that it is a known problem with G3 Modems and that engineers are currently
working on a software fix. At least now I know.

--
Dave Porter - Northumberland, England
http://www.radiopages.co.uk - Radio Pages web design
http://www.wcbs.demon.co.uk - The Dave Porter pages

Also, make sure that the port speed is set to no higher than 115,200
bps cos anything higher can cause problems
----------
In article <B1FF9961966862662@0.0.0.0>, dave@radiopages.co.uk (Dave
Porter) wrote:


>I have a G3 Powerbook 250. Nice machine, and fast, but I have a problem
>with the internal 56k Modem.
>
>I works fine for faxing and seems to work okay for coms, but when I connect
>to the internet it doesn't work at all well. It usually starts okay and
>will download, news, web pages etc fast, but then it seems to stall and
>will download only briefly and stop again. After a few minutes of this, I
>get an error message saying something like:
>
>Open Transport  - you have been disconnected.
>
>Bearing in mind that that it's fine for faxing, this seems to be an OT
>problem and not a modem problem, I'm using version 1.3 with Mac OS 8.1.
>
>However, I have connected an extenal Pace 56K modem to it, and eveything
>works perfectly, implying that it's not OT but a modem problem!
>
>Has anyone had a similar problem, or have the faintest idea what could be
>wrong?
>
>Thanks.
>
>--
>Dave Porter - Northumberland, England
>http://www.radiopages.co.uk - Radio Pages web design
>http://www.wcbs.demon.co.uk - The Dave Porter pages

Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:

> Also, make sure that the port speed is set to no higher than 115,200
> bps cos anything higher can cause problems
[snip]

Like what?

Rowland.

-- 
Remove the animal for my email address:   rebecca@astrid.dog.u-net.com
Sorry - the spam got to me.                       PGP pub key A680B89D
UK biker?                    Join MAG and help keep bureaucracy at bay
                          http://dredd.meng.ucl.ac.uk/www/mag/mag.html

----------
In article <1deeqvi.1c53mt21uzd48cN@p20.nas1.is2.u-net.net>,
real-address-in-sig@flur.bltigibbet (Rebecca and Rowland) wrote:


>Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:
>
>> Also, make sure that the port speed is set to no higher than 115,200
>> bps cos anything higher can cause problems
>[snip]
>
>Like what?
>

like the cpu failing even to talk to the modem, in the worst case.
well, thats what i found anyway, i assume its because the serial port
speed is too fast for modem chipsets at anything over 115,200bps. or
something....

Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:

> ----------
> In article <1deeqvi.1c53mt21uzd48cN@p20.nas1.is2.u-net.net>,
> real-address-in-sig@flur.bltigibbet (Rebecca and Rowland) wrote:
> 
> 
> >Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:
> >
> >> Also, make sure that the port speed is set to no higher than 115,200
> >> bps cos anything higher can cause problems
> >[snip]
> >
> >Like what?
> >
> 
> like the cpu failing even to talk to the modem, in the worst case.
> well, thats what i found anyway, i assume its because the serial port
> speed is too fast for modem chipsets at anything over 115,200bps. or
> something....

Ah yes - that's certainly the case sometimes (my GV 33.6 modem can't
handle anything above 115200 bit/s).  I would assume that 56K modems
have serial ports that can run at 230400 bit/s.  Is that rash of me.

Rowland.

-- 
Remove the animal for my email address:   rebecca@astrid.dog.u-net.com
Sorry - the spam got to me.                       PGP pub key A680B89D
UK biker?                    Join MAG and help keep bureaucracy at bay
                          http://dredd.meng.ucl.ac.uk/www/mag/mag.html

well, i am basing that experience on my GV 33.6 moden too (by the way
what is the fatest download speed you have achieved with it? i often
get into 70,000bps+ once i got 84,300bps out of it!)  but other than
that, i couldnt give you a positive yeah or nay cos i havent used the
built in modem of a G3 PB.  However, if it uses a similar chipset to
that of a global village, there wouldnt be the need to change its
maximum port speed rate cos the 56k is far lower than 155,200bps
apparent 'limit' (really?) so why would they bother to change it? 
Well, that could be one reason, anyway.


Rupert


----------
In article <1deg4j8.1a02hsh1cx0evnN@p29.nas1.is2.u-net.net>,
real-address-in-sig@flur.bltigibbet (Rebecca and Rowland) wrote:


>Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:
>
>> ----------
>> In article <1deeqvi.1c53mt21uzd48cN@p20.nas1.is2.u-net.net>,
>> real-address-in-sig@flur.bltigibbet (Rebecca and Rowland) wrote:
>> 
>> 
>> >Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:
>> >
>> >> Also, make sure that the port speed is set to no higher than 115,200
>> >> bps cos anything higher can cause problems
>> >[snip]
>> >
>> >Like what?
>> >
>> 
>> like the cpu failing even to talk to the modem, in the worst case.
>> well, thats what i found anyway, i assume its because the serial port
>> speed is too fast for modem chipsets at anything over 115,200bps. or
>> something....
>
>Ah yes - that's certainly the case sometimes (my GV 33.6 modem can't
>handle anything above 115200 bit/s).  I would assume that 56K modems
>have serial ports that can run at 230400 bit/s.  Is that rash of me.
>
>Rowland.
>
>-- 
>Remove the animal for my email address:   rebecca@astrid.dog.u-net.com
>Sorry - the spam got to me.                       PGP pub key A680B89D
>UK biker?                    Join MAG and help keep bureaucracy at bay
>                          http://dredd.meng.ucl.ac.uk/www/mag/mag.html

Rupert Thomson <rupert@rthomson.dircon.co.uk> wrote:

> well, i am basing that experience on my GV 33.6 moden too (by the way
> what is the fatest download speed you have achieved with it? i often
> get into 70,000bps+ once i got 84,300bps out of it!)  but other than
> that, i couldnt give you a positive yeah or nay cos i havent used the
> built in modem of a G3 PB.  However, if it uses a similar chipset to
> that of a global village, there wouldnt be the need to change its
> maximum port speed rate cos the 56k is far lower than 155,200bps
> apparent 'limit' (really?) so why would they bother to change it? 
> Well, that could be one reason, anyway.
[snip]

Modems of 14400 bit/s and above support compression of up to 4:1, so a
56K modem can (theoretically) need to squirt data at about 230400 bit/s
down the serial line to your computer.

I've seen over 100,000 bit/s with my GV 33.6 modem (FreePPP 2.5.? (?),
MacTCP 2.0.6, Performa 475, 115200 bit/s serial port, downloading list
off all newsgroups with MacSoup; probably System 7.1, maybe 7.6(.1)).

Rowland.

-- 
Remove the animal for my email address:   rebecca@astrid.dog.u-net.com
Sorry - the spam got to me.                       PGP pub key A680B89D
UK biker?                    Join MAG and help keep bureaucracy at bay
                          http://dredd.meng.ucl.ac.uk/www/mag/mag.html