Connection Problems with Your ISP

SYMPTOMS
========

When you try to connect to your ISP, you may be unable
to do so. Or, you may be able to connect successfully, but then you may
be disconnected.

CAUSE
=====

This behavior can occur if your modem is not capable of using data
compression with your ISP or if your modem's maximum speed setting is
incorrect.

RESOLUTION
==========

To resolve this issue, follow these steps:

Disable Data Compression
------------------------

1. Click Start, point to Settings, click Control Panel, and then double-
click Modems.

2. Click your modem, and then click Properties.

3. On the Connection tab, click Advanced.

4. If the Use Error Control check box is available, click to select it.
If the Use Error Control check box is unavailable, continue to the
next step.

NOTE: If you have a 28,800 bits per second (bps) or faster modem, click
the Compress Data check box to clear it.

5. Under Use Flow Control, click Hardware.

6. In the Modulation Type box, click Standard.

7. Click OK, click OK, click Close, and then close Control Panel.

8. Restart your computer, and then test to determine if the issue is
resolved by connecting to MSN. If the issue still exists, continue to
the next step. If the issue is resolved, skip the remaining steps.

9. If your modem is listed as a generic modem, continue to the next step.
If your modem is not listed as a generic modem, skip to the next
section.

10. View the manufacturer's documentation included with your modem to
determine the AT command (a command that sends instructions to a modem)
that disables data compression.

11. Click Start, point to Settings, click Control Panel, and then double-
click Modems.

12. Click your modem, and then click Properties.

13. On the Connection tab, click Advanced.

14. In the Extra Settings box, type the AT command to disable data
compression.

15. Click OK, click OK, click Close, and then close Control Panel.

16. Restart your computer, and then test to determine if the issue is
resolved by connecting to MSN. If the issue still exists, continue to
the next section. If the issue is resolved, do not follow the
remaining steps.

Set Modem Maximum Speed
-----------------------

1. Click Start, point to Settings, click Control Panel, and then double-
click Modems.

2. Click your modem, and then click Properties.

3. In the Maximum Speed box, click the modem's maximum speed as follows:

Modem Speed Maximum Speed
------------------------------------
2400 bps 2400 bps
9600 bps 9600 bps
14,400 bps 19,200 bps
19,200 bps 38,400 bps
28,800 bps 57,600 bps
33,600 bps or faster 115,200 bps

4. Click OK, click Close, and then close Control Panel.

5. Restart your computer.

MORE INFORMATION
================

For more information about extra modem settings, please see the following
articles in the Microsoft Knowledge Base:

Extra Modem Settings A-C for Connecting to MSN

ARTICLE ID: Q175288
TITLE : Extra Modem Settings D-H for Connecting to MSN

ARTICLE ID: Q175187
TITLE : Extra Modem Settings I-M for Connecting to MSN

ARTICLE ID: Q175248
TITLE : Extra Modem Settings N-P for Connecting to MSN

ARTICLE ID: Q175249
TITLE : Extra Modem Settings R-T for Connecting to MSN

ARTICLE ID: Q175250
TITLE : Extra Modem Settings U-Z for Connecting to MSN

This page last updated: Monday, 24. May 1999 09:46:57 -0500