Microsoft KB Archive/142992

Cannot Connect to MSN with U.S. Robotics Courier I-Modem

PSS ID Number: Q142992 Article last modified on 05-13-1996

1.20 1.30

WINDOWS

= SYMPTOMS =

After you install a U.S. Robotics Courier I-Modem, you may not be able to connect to MSN, The Microsoft Network.

= CAUSE =

Some internal U.S. Robotics Courier I-Modems do not have firmware that supports synchronous PPP, which is required for an ISDN modem to connect to MSN. The earliest version of the firmware that supports synchronous PPP is version 1.0.9. To determine the firmware version for an internal I-Modem, issue the AT command “ATI7” (without quotation marks). Both the Supervisor Rev and DSP Rev lines should show at least 1.0.9.

Both internal and external U.S. Robotics Courier I-Modems must have synchronous PPP enabled.

= RESOLUTION =

If you have a firmware version earlier than version 1.0.9, contact U.S. Robotics for a firmware update.

Also, make sure that synchronous PPP is enabled using one of the following methods:


 * In the Courier I-Modem Manager software, select Internet Access as the default call type.
 * Issue the AT command &quot;AT*V2=5&quot; (without quotation marks) to enable synchronous PPP, followed by “ATZ!” (without quotation marks) to permanently store the settings to non-volatile RAM on the I-Modem.

= MORE INFORMATION =

Your I-Modem may connect to other online services, because the I-Modem supports the V.120 protocol. However, MSN does not support this protocol and requires that the ISDN adapter support synchronous PPP.

= REFERENCES =

For additional information about ISDN, go to the Easy ISDN Access forum on MSN. The Go word is “EasyISDN.”

KBCategory: kbhw KBSubcategory: msnconnect Additional reference words: 1.20 1.30 msn ============================================================================= Copyright Microsoft Corporation 1996.