3Com 3C888 User Guide - Page 127

Windows 95 and 98, Windows 2000 and NT 4.0, Macintosh, Internet Explorer, Netscape Navigator, Symptom

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Evaluating Symptoms and Solutions 127 Table 6 Symptoms, Causes, and Solutions Symptom (continued) Possible Cause Solution Incompatible IP address on your Reset the IP address on your computer, as follows: computer 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 . 6 Select File, then Close, saving your changes. Your Web browser may be Launch your Web browser, and set it to use the LAN configured to use a proxy server. 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 Make sure you are using the 8-pin to 8-pin cable connected to the LAN port on the labeled Ethernet that was provided with your Dual 56K Dual 56K LAN Modem and your LAN Modem. If you are using another 10BASE-T computer. Ethernet cable, it must be a straight-through cable. Workstation is set to use a Static s Configure the workstation to use dynamic IP IP address addressing; refer to "Checking TCP/IP and IP Address Settings"in Chapter 3. Or: s 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.

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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