ID: Q184227
The information in this article applies to:
When you attempt to connect to a Virtual Private Network (VPN) from a desktop computer connected to a Handheld PC (H/PC), you receive the following error message on the desktop computer:
Error 645: Dial-up adapter is in use or is not responding properly.
Disconnect other connections and try again. If this problem persists,
shutdown and restart your computer.
Your Connection was dropped because there was no carrier detect signal.
Your Serial cable or serial port hardware may not be communicating this
signal properly. If you are using a modem, your call may have been
dropped or you may need to reset your modem.
This behavior occurs because Microsoft Dial-Up Networking 1.2 only allows two active connections. A connection to a VPN uses two Dial-Up Networking connections: one for the Dial-Up Networking connection itself, and the other for the connection to the VPN. A Direct Cable Connection to an H/PC uses a Dial-Up Networking connection.
When you start a connection to a VPN, you cannot start an additional Dial-Up Networking or Direct Cable Connection. When you start a Direct Cable Connection, you cannot start a connection to a VPN.
To prevent this issue from occurring, either disconnect from the VPN before you connect the H/PC, or disconnect the H/PC before you connect to the VPN.
This behavior is by design.
Additional query words: 1.00 2.00 hand held dun
Keywords : kbnetwork wince handheld kbimu
Version : WINDOWS:1.0,2.0
Platform : WINDOWS
Issue type : kbprbLast Reviewed: June 25, 1998