Appendix D: Troubleshooting and Frequently Asked Questions
210
ISDN PC Card – 18 Appendix D: Troubleshooting and Frequently Asked Questions
3.
You are using the correct Dial-Up Networking connec-
tion that configured for use with with the PC Card.
4.
Your ISP supports the appropriate protocols. The ISP
may conceivably recommend any protocol, such as
V.120, asynchronous PPP, X.75, or any other protocol.
Contact your ISP and find out the protocol to use. Install
cFos and create a Dial-Up Networking connection ac-
cording to the procedures in this guide and your ISP’s
instructions.
No connection to your ISP at 128 kbit/s
If you suspect that the IBM International ISDN PC Card is only
operating using one ISDN B channel (64 kbit/s) although you
have configured the system to use both B channels, please
verify the following:
1.
Your ISP supports multilink connections, a 128 kbit/s
connection over two ISDN B channels simultaneously.
2.
If you are using Windows 95, make sure you have in-
stalled the Microsoft Dial-Up Networking Update 1.3.
Various language versions are available on the CD. In-
stallation instructions can be found in Section “Upgrad-
ing Dial-Up Networking for Windows 95” on page 18.
3.
You have followed the instructions in Section “Setting
Up Internet Access” on page 106.
cFos was installed with all COM ports selected. Now my
modem takes COM port 10 or higher. How can this be
solved?
If you select all available COM ports during the cFos installa-
tion, then cFos will occupy all COM ports, up to COM9. This
may cause problems later when you install an analog mo-
dem. There are two ways to circumvent this problem:
1.
Try to use as few COM ports as possible. Three to four
COM ports should be enough for day-to-day use of cFos
with the IBM International ISDN PC Card.
2.
If possible, install the analog modem before you install
the IBM International ISDN PC Card and cFos.
