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Thread View: comp.dcom.modems.cable
11 messages
11 total messages Started by Arn Burkhoff Mon, 24 Dec 2001 18:39
Cable Modem crashes Laptop system when disconnected
#633
Author: Arn Burkhoff
Date: Mon, 24 Dec 2001 18:39
30 lines
2501 bytes
I am running a Dell 7000 Laptop, 128meg of ram, with Win 98(FE), Axent/Symantec
Raptor Mobile  and recently installed a Motorola Surfboard 4100 modem via USB.
This works well, but if I attempt to boot
without the Cable Modem connected (i remove the USB cable,this is supposed to be
a
portable machine) Windows crashes multiple times after initialization with:

Fatal exception 06 at 0028:00000017 (no module name given)

eventually Zone Alarm indicates in failed to load, I lose my desktop and the
system locks.
Reboot with the modem connect and it's OK. I've already tried:

1. Setting up a Hardware Profile without the cable modem. When I attempt to
exclude the Cable modem it instantly crashes the system and forces an automatic
self reboot. The modem remains in the profile when I reboot.

2. Download new drivers from Motorola. The file I received has nothing that
looks like a driver and Motorola is closed for the Christmas until Wednesday.

I need to be able to connect to the WWW when I am away from home with DUN but
want the speed of the cable modem at home.

This is way beyond my understanding of WinDoze, although I do think it's in
Networking or drivers. Anyone out there have any ideas or suggestions about what
to change, where to look, how to find the module that's crashing or what to
update to get this to work.
Thank  you in advance 
-- 
Arn
Re: Cable Modem crashes Laptop system when disconnected
#634
Author: Brian
Date: Mon, 24 Dec 2001 20:21
13 lines
1736 bytes
   USB doesn't work that well with most cable modems I've seen. I
recommend you install a NIC if you can and go ethernet; it's faster and
much more reliable. The problem isn't with the modem or the service, but
with the USB drivers and the USB interface. The first time you
disconnect the USB cable while the PC is operating, your USB drivers
will hose up and you will probably have to uninstall them using the USB
uninstall program for the modem, and then reload them again. I
personally think networking with USB is a waste of time as it is too
easy to screw up.
   If you need the uninstall USB program for the SB4100, let me know and
I will e-mail it to you. Without running that program, you will never
get your USB driver for the modem to work right again once it is messed
up.
Re: Cable Modem crashes Laptop system when disconnected
#635
Author: Arn B
Date: Tue, 25 Dec 2001 02:18
16 lines
1757 bytes
Brian
I was able to remove the USB cable while the system was up without hosing over
my drivers, however it did lock the system and require a reboot. I have other
USB devices on my system and they work well. 

I tried setting up multiple hardware configurations, one without the Cable
modem, but that did not work.

I gave up and finally managed to remove the USB drivers after many boots into
safe mode until I finally got my system to boot normally without the USB modem.
It was a nightmare because for some reason my CD-ROM did not show up in Safe
Mode so I could not execute the removal program until I got my  system back. I
will get a NIC card and give that a try. 

-- 
Arn
Re: Cable Modem crashes Laptop system when disconnected
#636
Author: Brian
Date: Tue, 25 Dec 2001 04:23
20 lines
2342 bytes
   USB is great for printers, mice, cameras, etc... It just doesn't seem
to work well with cable modems on a lot of computers.
   I saw a PC a few weeks ago that developed a problem on the
motherboard or powersupply (probably the power supply) that fed 110
volts out the USB plug. The modem's USB port was dead when I arrived, so
I got another modem and connected it to my laptop first, where it worked
okay on USB (the PC had only USB connections - you couldn't pay me to
take one of those). When I connected that new modem to the computer, it
actually tripped the main breaker in that part of the man's house. When
he reset the breaker, the USB port was dead. We tried one more modem and
when we connected it, smoke came out of it and killed it's (modem's) USB
port as well. I don't know exactly what was wrong with the PC, but it
could have possibly electrocuted somebody if it had that kind of power
on the USB port and a person grabbed the other end of the USB cable. The
machine had a surge suppressor strip he had purchased with the computer.
I don't know why it didn't trip the suppressor breaker, but it never
did, and it ruined 2 modems USB ports.
   I've never seen anything like that, but I will definitely be careful
anytime I work around a USB device with any type of problem in the
future.
Re: Cable Modem crashes Laptop system when disconnected
#637
Author: Brian
Date: Tue, 25 Dec 2001 04:37
8 lines
1562 bytes
   To clarify my earlier statement, there was a lot of troubleshooting
between trying the 2 modems. We tried everything we could think of to
eliminate possible causes of a short before we connected another modem,
but the smoked modem was the red flag. A problem of that nature would
almost have to be power supply related because the power shouldn't have
been there to burn out a modem anyway, unless one circuit of the power
supply was bad. It actually burnt the metal on the side of the USB
cables plug.
USB fireworks (was Re: Cable Modem crashes...)
#638
Author: Kent Sutton
Date: Tue, 25 Dec 2001 18:23
43 lines
3614 bytes
Brian <bswindle@charter.net> wrote in message
news:3C27FF5E.337A678D@charter.net...
>    USB is great for printers, mice, cameras, etc... It just doesn't seem
> to work well with cable modems on a lot of computers.
>    I saw a PC a few weeks ago that developed a problem on the
> motherboard or powersupply (probably the power supply) that fed 110
> volts out the USB plug. The modem's USB port was dead when I arrived, so
> I got another modem and connected it to my laptop first, where it worked
> okay on USB (the PC had only USB connections - you couldn't pay me to
> take one of those). When I connected that new modem to the computer, it
> actually tripped the main breaker in that part of the man's house. When
> he reset the breaker, the USB port was dead. We tried one more modem and
> when we connected it, smoke came out of it and killed it's (modem's) USB
> port as well. I don't know exactly what was wrong with the PC, but it
> could have possibly electrocuted somebody if it had that kind of power
> on the USB port and a person grabbed the other end of the USB cable. The
> machine had a surge suppressor strip he had purchased with the computer.
> I don't know why it didn't trip the suppressor breaker, but it never
> did, and it ruined 2 modems USB ports.
>    I've never seen anything like that, but I will definitely be careful
> anytime I work around a USB device with any type of problem in the
> future.
>

There are a few possibilities, but this scenario is the most likely.  The
"hot" and "neutral" are reversed on the ac outlet that the computer or modem
was plugged into.  This is more likely to happen with 2-prong outlets that
3-prong grounded outlets.  If this happens, then the computer case will be
at 120v ac.  The shields in the computer cables are connected to the case,
so they too would be at 120v.  Unless you are grounded, you may never notice
that this has happened if you touch the case.  However, plug in a properly
grounded device (cable modem, since cable will be earth grounded) and POW,
tripped breakers, exploding computers, and more.  The breaker on the surge
protector didn't trip because the power went through the unprotected neutral
side, not the breaker protected power side.  A good surge protector would
have been showing a wiring fault when first plugged in.

In short (sorry, couldn't resist), the problem is most likely with the house
wiring, not the USB port.  It's very, very unlikely that 120v ac could be
present at the USB port and the computer still work.

Kent
Re: Cable Modem crashes Laptop system when disconnected
#639
Author: A Cable Guy
Date: Tue, 25 Dec 2001 19:02
52 lines
2876 bytes
Arn,
Try down loading the latest USB drivers and see if this helps....
http://www.gi.com/noflash/surfboard.html

Bryan


"Arn Burkhoff" <Arnb@NOSPAMArnb.Org> wrote in message
news:3C277666.A7471915@NOSPAMArnb.Org...
> I am running a Dell 7000 Laptop, 128meg of ram, with Win 98(FE),
Axent/Symantec
> Raptor Mobile  and recently installed a Motorola Surfboard 4100 modem via
USB.
> This works well, but if I attempt to boot
> without the Cable Modem connected (i remove the USB cable,this is supposed
to be
> a
> portable machine) Windows crashes multiple times after initialization
with:
>
> Fatal exception 06 at 0028:00000017 (no module name given)
>
> eventually Zone Alarm indicates in failed to load, I lose my desktop and
the
> system locks.
> Reboot with the modem connect and it's OK. I've already tried:
>
> 1. Setting up a Hardware Profile without the cable modem. When I attempt
to
> exclude the Cable modem it instantly crashes the system and forces an
automatic
> self reboot. The modem remains in the profile when I reboot.
>
> 2. Download new drivers from Motorola. The file I received has nothing
that
> looks like a driver and Motorola is closed for the Christmas until
Wednesday.
>
> I need to be able to connect to the WWW when I am away from home with DUN
but
> want the speed of the cable modem at home.
>
> This is way beyond my understanding of WinDoze, although I do think it's
in
> Networking or drivers. Anyone out there have any ideas or suggestions
about what
> to change, where to look, how to find the module that's crashing or what
to
> update to get this to work.
> Thank  you in advance
> --
> Arn
Re: Cable Modem crashes Laptop system when disconnected
#640
Author: James Smith
Date: Tue, 25 Dec 2001 21:27
52 lines
3130 bytes
Its the Raptor Mobile, depending on what version you are running and the OS.
Raptor doesn't support XP yet and their 2000 client is pretty flaky as well.
Try un/reinstalling the software.  Make sure you have the Raptor
configuration before doing this or contact your company's VPN support to
reconfigure.


"Arn Burkhoff" <Arnb@NOSPAMArnb.Org> wrote in message
news:3C277666.A7471915@NOSPAMArnb.Org...
> I am running a Dell 7000 Laptop, 128meg of ram, with Win 98(FE),
Axent/Symantec
> Raptor Mobile  and recently installed a Motorola Surfboard 4100 modem via
USB.
> This works well, but if I attempt to boot
> without the Cable Modem connected (i remove the USB cable,this is supposed
to be
> a
> portable machine) Windows crashes multiple times after initialization
with:
>
> Fatal exception 06 at 0028:00000017 (no module name given)
>
> eventually Zone Alarm indicates in failed to load, I lose my desktop and
the
> system locks.
> Reboot with the modem connect and it's OK. I've already tried:
>
> 1. Setting up a Hardware Profile without the cable modem. When I attempt
to
> exclude the Cable modem it instantly crashes the system and forces an
automatic
> self reboot. The modem remains in the profile when I reboot.
>
> 2. Download new drivers from Motorola. The file I received has nothing
that
> looks like a driver and Motorola is closed for the Christmas until
Wednesday.
>
> I need to be able to connect to the WWW when I am away from home with DUN
but
> want the speed of the cable modem at home.
>
> This is way beyond my understanding of WinDoze, although I do think it's
in
> Networking or drivers. Anyone out there have any ideas or suggestions
about what
> to change, where to look, how to find the module that's crashing or what
to
> update to get this to work.
> Thank  you in advance
> --
> Arn
Re: Cable Modem crashes Laptop system when disconnected
#641
Author: Arn B
Date: Tue, 25 Dec 2001 21:37
31 lines
2120 bytes
A Cable Guy wrote:
> 
> Arn,
> Try down loading the latest USB drivers and see if this helps....
> http://www.gi.com/noflash/surfboard.html
> 
> Bryan
> 

Bryan

Good idea.

Downloaded yesterday. When I unzipped the archive all I found were the following
files,no instructions,and none of files match my driver name, NET4100. 
NetMonCM.CAT
NetMonCM.INF
NetMonCM.SYS 

I decided to wait until I contact Motorola Tech Support before installing
anything. They have one shot at a solution before I get a LAN card. I do know
how to update drivers, I just want to be certain these are the proper drivers,
they will fix the crashes and allow my laptop to be portable before
reinstalling. 

Prior to the next install I am backing up my registry, system.ini and win.ini
config.sys and autoexec.bat(last 2 are likely optional) Then if I have problems,
I boot to safe mode, restore and I should be back in business. Due to my system
crashing it was a nightmare getting rid of the USB Cable modem install.  

Arn
Re: Cable Modem crashes Laptop system when disconnected
#642
Author: Arn B
Date: Tue, 25 Dec 2001 21:53
18 lines
2016 bytes
James Smith wrote:
> 
> Its the Raptor Mobile, depending on what version you are running and the OS.
> Raptor doesn't support XP yet and their 2000 client is pretty flaky as well.
> Try un/reinstalling the software.  Make sure you have the Raptor
> configuration before doing this or contact your company's VPN support to
> reconfigure.
> 
I am running on Win 98 with Raptor version 5.01 (a bit out of date but works
fine on DUN). When I first installed the Cable modem software, Raptor was not
bound to the Cable Modem and my system was crashing. After binding
Raptor(running their install program)and binding the Cable Modem, it seemed OK
and I had no trouble getting a secure connection. However, the other software I
need for my client, Microsoft SNA with Attachmate Extra seemed a bit flaky on
the high speed connection.   

I plan giving Motoraola a call tomorrow but will likely go with a LAN card.
Arn
Re: USB fireworks (was Re: Cable Modem crashes...)
#585
Author: Brian
Date: Wed, 26 Dec 2001 02:53
10 lines
1757 bytes
I agree it is unlikely the PC would still work like that, but what gets
me is the PC itself functions fine. It seemed like a polarity problem
would have affected the computer as well. Regardless, it's a dangerous
situation. The man had his modem running on the same computer for 6
months prior to this happening, so whatever it was happened recently.
The house was approximately 6 years old, so all the outlets are 3 prong
gronded outlets; I'm sure the electrician may have taken some shortcuts
when he put everything together, but that was a strange problem. The
traces in the PC shouldn't have passed enough current to do what it did
without killing the computer.
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