This may be caused due to the following:
1. The Bluetooth USB hardware device is not working properly.
Solution: Configure the Bluetooth hardware device for BlueSoleil-PTS and restart it, refer to IVT BlueSoleil-PTS Getting Start 2 - C Start & GUI Overview, Page4.

2. If the Trace information of BlueSoleil-PTS shows "Failed to find the entry on the", the reason may be the Direct Cable Connection you have made is still associated with other COM port rather than the one BlueSoleil-PTS specified and required.
Solution: Go to Windows menu Start | Settings | Network and Dial-up Connections | Direct Connection | Properties, in General page select the 'Communications cable between two computers (COM7)' in the < Select a device: > list box, and click OK. Refer to IVT BlueSoleil-PTS Getting Start 9 - LAP Interoperability Test, Page12.

3. If the Bluetooth connection can be established but the PPP connection cannot, the reason may be the Windows PPP Connection did not in the correct status, this is a bug in Windows 2000.
Solution: You can wait a moment and then start the test case again. If the problem still exists, please restart the computer and run this testing again though IVT does not prompt user for reboot.

For the testing of DUN DT, the BlueSoleil-PTS acts as the GW, and a physical modem is needed for the BlueSoleil-PTS to implement the dial-up functions. During the starting of BlueSoleil-PTS, the modem selected previously will be selected by BlueSoleil-PTS to use, and BlueSoleil-PTS will detect the modem then. If BlueSoleil-PTS cannot get proper response from the modem, this problem will occur.
This may be caused due to the following:
1. No physical modem is installed on the OS.
Solution: Prepare a physical modem and install it on the OS, then use BlueSoleil-PTS's menu command Tools | Dial-up Networking Profile | Select Modem to update BlueSoleil-PTS's modem information.

2. During the starting of OS, the physical modem is power off, so the system cannot detect the modem.
Solution: If the modem is already installed on the OS, directly power on the modem and use BlueSoleil-PTS's menu command Tools | Dial-up Networking Profile | Select Modem to update BlueSoleil-PTS's modem information. It will be OK.

For the testing of DUN DT, the BlueSoleil-PTS acts as the GW, a physical modem is needed for the BlueSoleil-PTS to implement the dial-up functions. The menu command Tools | Dial-up Networking Profile | Select Modem is used for user to specify the working modem used for BlueSoleil-PTS. When starting the BlueSoleil-PTS, if the modem is not ready, BlueSoleil-PTS will not work, user should use this command to inform the BlueSoleil-PTS after the modem is ready. If user wants to change the modem used for BlueSoleil-PTS, this command also can be used.
If this problem occurs, first of all, user should make the physical modem ready. If the modem is ready and the problem still exists, it may be caused due to the following:
1. The error message is "the specific com port cannot be opened " , it is due to the modem being used by another program, such as a dial-up connection or an incoming connection.
Solution: Please check all dial-up connections of OS in Start | Settings | Network and Dial-up Connections. If there is an active dial-up connection that is using the physical modem, user should disconnect the connection. If there is no active dial-up connection, user should pay attention to the incoming connections. If the incoming connection monitors the physical modem, uncheck the physical modem. This can be done by right clicking the incoming connection, and from the pop-up menu selecting Properties. In the Properties dialog, there is a modem list, if the physical modem is checked, uncheck it.

2. The error message is "no response for AT command is received" , it is due to the selected modem not present or it is not a physical modem.
Solution: If the selected modem is a physical modem, please check the modem is powered on and the data line between the modem and the computer is OK. If the selected modem is not a physical modem, selecting the physical modem will be OK.

This may be caused due to the following:
1. When starting the Windows PPP server was needed, you did not check the COM port BlueSoleil-PTS specified as the device on which the incoming connection is allowed.
Solution: Go to Windows menu Start | Settings | Network and Dial-up Connections | Incoming Connections | Properties, in General page check the box of 'Communications cable between two computers (COM8)', and click OK. Refer to IVT BlueSoleil-PTS Getting Start 9 - C LAP Interoperability Test, Page17-18.

2. You may forget to uncheck the box of 'Communications cable between two computers (COM8)' in the Win2000 Incoming Connections Properties window at the end of last test case run.
Solution: In the Incoming Connections Properties window, uncheck the box of COM8 and click the OK. Then enter the Incoming Connections Properties window and check the box of COM8 again when needed, and click OK.

3. If the SUT is not the only one DT to connect with BlueSoleil-PTS, the BlueSoleil-PTS should be installed and run on Windows 2000 Server since the Windows 2000 Professional does not support multiple PPP links!
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This may be caused due to the following:
1. You did not select or input the Bluetooth Device Address of SUT on BlueSoleil-PTS before the start of the testing.
Solution: Before the start of a test case, go to the menu Tools | Select or Input IUT on the GUI of BlueSoleil-PTS to inquire the Bluetooth devices nearby and then select the device of SUT, refer to IVT BlueSoleil-PTS Getting Start 2 - C Start & GUI Overview, Page5.