Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Home NTDEV

More Info on Driver Writing and Debugging


The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.


Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/


Before Posting...

Please check out the Community Guidelines in the Announcements and Administration Category.

Dial-up connection always reports max port speed

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Hi,

Initially my Win2K machine reported all dial-out modem
connectoins at the (more or less) actual connect speed.
Then, at one point it started reported every connection
at whatever value I have set as the maximum port speed
for the modem port (115Kbps, 57.6Kbps, etc.). This is
independent of whicher of the 10 or so different dial-up
servers I use (each with different modems and RAS boxes
on their ends).

Does anyone know how I caused this effect to occur?

More importantly, does anyone know how I can get back
the original behavior?

TIA...Cordially,

BobN
------------ ISO 9001 Registered Quality Supplier -----------
Bob Natale | ACE*COMM | 301-721-3000 [v]
Dir, Net Mgmt Prod | 704 Quince Orchard Rd | 301-721-3001 [f]
[email protected]| Gaithersburg MD 20878 | www.acecomm.com
------------- Free downloads at www.winsnmp.com -------------

Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    In the past, using NT4.0 with various modems, when I used the driver specifically for the modem, I've seen the true rate come up, but when I use the Standard Modem driver supplied with NT, I've always seen the Max Port Speed come up.

    At 01:41 AM 3/25/00 -0500, you wrote:
    >Hi,
    >
    >Initially my Win2K machine reported all dial-out modem
    >connectoins at the (more or less) actual connect speed.
    >Then, at one point it started reported every connection
    >at whatever value I have set as the maximum port speed
    >for the modem port (115Kbps, 57.6Kbps, etc.). This is
    >independent of whicher of the 10 or so different dial-up
    >servers I use (each with different modems and RAS boxes
    >on their ends).
    >
    >Does anyone know how I caused this effect to occur?
    >
    >More importantly, does anyone know how I can get back
    >the original behavior?
    >
    >TIA...Cordially,
    >
    >BobN
    >------------ ISO 9001 Registered Quality Supplier -----------
    >Bob Natale | ACE*COMM | 301-721-3000 [v]
    >Dir, Net Mgmt Prod | 704 Quince Orchard Rd | 301-721-3001 [f]
    >[email protected]| Gaithersburg MD 20878 | www.acecomm.com
    >------------- Free downloads at www.winsnmp.com -------------
    >
    >
    >---
    >You are currently subscribed to ntdev as: [email protected]
    >To unsubscribe send a blank email to $subst('Email.Unsub')
    >
    >
    >
  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    I think the key is in the initialization string to the
    modem. IIRC, a "W2" in the init string reports the
    port speed, while a "W1" reports the connection speed.
    Check your modem's inf file.

    -Hong Siang

    --- Bob Natale <[email protected]> wrote:
    > Hi,
    >
    > Initially my Win2K machine reported all dial-out
    > modem
    > connectoins at the (more or less) actual connect
    > speed.
    > Then, at one point it started reported every
    > connection
    > at whatever value I have set as the maximum port
    > speed
    > for the modem port (115Kbps, 57.6Kbps, etc.). This
    > is
    > independent of whicher of the 10 or so different
    > dial-up
    > servers I use (each with different modems and RAS
    > boxes
    > on their ends).
    >
    > Does anyone know how I caused this effect to occur?
    >
    > More importantly, does anyone know how I can get
    > back
    > the original behavior?
    >
    > TIA...Cordially,
    >
    > BobN
    > ------------ ISO 9001 Registered Quality Supplier
    > -----------
    > Bob Natale | ACE*COMM |
    > 301-721-3000 [v]
    > Dir, Net Mgmt Prod | 704 Quince Orchard Rd |
    > 301-721-3001 [f]
    > [email protected]| Gaithersburg MD 20878 |
    > www.acecomm.com
    > ------------- Free downloads at www.winsnmp.com
    > -------------
    >
    >
    > ---
    > You are currently subscribed to ntdev as:
    > [email protected]
    > To unsubscribe send a blank email to
    > $subst('Email.Unsub')
    >
    >

    __________________________________________________
    Do You Yahoo!?
    Talk to your friends online with Yahoo! Messenger.
    http://im.yahoo.com
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Writing WDF Drivers 24 January 2022 Live, Online
Internals & Software Drivers 7 February 2022 Live, Online
Kernel Debugging 21 March 2022 Live, Online
Developing Minifilters 23 May 2022 Live, Online