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Evaluating Symptoms and Solutions
127
Incompatible IP address on your
computer
Reset the IP address on your computer, as follows:
Windows 95 and 98:
1
Run
winipcfg.exe.
2
Select the Ethernet adapter connected to the Dual
56K LAN Modem.
3
Click
Release All
and then
Renew All
.
Windows 2000 and NT 4.0:
1
Run
ipconfig /release
and then
ipconfig /renew
.
Macintosh:
1
From the Apple menu, select
Control Panels,
and
then
TCP/IP
.
2
In the Connect via field, make sure
Ethernet
is
selected.
3
In the Configure field, select
Using BootP Server
to
clear the fields.
4
Close and save your changes.
5
Re-open the
TCP/IP
control panel, and select
Using
DHCP Server
. The fields should now read
<will be
supplied by server>
.
6
Select
File,
then
Close,
saving your changes.
Your Web browser may be
configured to use a proxy server.
Launch your Web browser, and set it to use the LAN
Modem, as follows:
Internet Explorer:
1
From the
View
menu, choose
Internet Options
.
2
Click the
Connection
tab.
3
Uncheck the box labeled
Connect using proxy
server.
Netscape Navigator:
1
From the
Edit
menu, choose
Preferences.
2
Under
Advanced,
choose
Proxies
.
3
Check the box labeled
Direct Connection to the
Internet.
There is a configuration problem. Reset the Dual 56K LAN Modem to the factory default
setting. Refer to “Resetting the Dual 56K LAN Modem”
in this chapter for assistance.
The wrong cable may be
connected to the LAN port on the
Dual 56K LAN Modem and your
computer.
Make sure you are using the 8-pin to 8-pin cable
labeled
Ethernet
that was provided with your Dual 56K
LAN Modem. If you are using another 10BASE-T
Ethernet cable, it must be a straight-through cable.
Workstation is set to use a Static
IP address
■
Configure the workstation to use dynamic IP
addressing; refer to “Checking TCP/IP and IP
Address Settings”in Chapter 3.
Or:
■
Follow the setup procedure for a
Statically-configured workstation; refer to “Setting
Up Your Computer If You Have a Static IP Address”
in Chapter 3.
(continued)
Table 6
Symptoms, Causes, and Solutions
Symptom
Possible Cause
Solution
Summary of Contents for U.S. Robotics 56K Voice
Page 10: ...GLOSSARY 3COM CORPORATION LIMITED LIFETIME WARRANTY REGULATORY AND APROVAL INFORMATION...
Page 30: ...30 CHAPTER 2 DUAL 56K LAN MODEM FUNCTIONALITY DESCRIPTION...
Page 46: ...46 CHAPTER 4 INSTALLING THE DUAL 56K LAN MODEM...
Page 58: ...58 CHAPTER 5 CONFIGURING THE DUAL 56K LAN MODEM FOR INTERNET ACCESS...
Page 124: ...124 CHAPTER 9 PLACING RECEIVING AND DISCONNECTING CALLS...
Page 136: ...136 CHAPTER 10 TROUBLESHOOTING AND MAINTENANCE...
Page 146: ...146 APPENDIX A NETWORKING PRIMER...
Page 154: ...154 APPENDIX D FACTORY DEFAULTS...
Page 156: ...156 APPENDIX E SPECIFICATIONS...
Page 166: ......