3Com 3C16685 User Manual - page 108
108
C
HAPTER
5: P
ROBLEM
S
OLVING
The Web browser cannot access the stack over the network.
Connect to the stack’s console port and use the command line
interface to check that:
■
The stack’s IP address, subnet mask and default router are
correctly configured; refer to
“Displaying the IP Information”
on
page 52
.
■
The port through which you are trying to access the stack has not
been disabled.
■
You are using the right network cables. For examples of the pin
wiring for suitable cables, refer to
“10BASE-T and 100BASE-TX
Cable”
on
page 111
.
If your management station has a PING application, you can use it to
try to access the stack to see if it can communicate with your
management station.
The Web browser can no longer access the stack over the
network. Check that the port through which you are trying to
access the stack has not been disabled. If it is enabled, check the
connections and network cabling at the port. Try accessing the stack
through a different port. If you can now access the stack, a problem
with the original port is indicated. Re-examine the connections and
cabling.
Possibly there is a network problem preventing you from accessing
the stack over the network. Try accessing the stack through its
console port and reset the stack.
The Web browser cannot access the stack over a serial link
from a Windows 95 management station. You must use the
3Com serial web utility (SLIP Driver). Check that it is installed
correctly. Refer to
“Installing the Serial Web Utility”
on
page 117
.
Some of the web interface is not displayed in the Web
browser after downloading. This is probably due to large amounts
of traffic over the network. Either reload (download) the web
interface, or click in the part of the web interface that has not
displayed and select the reload frame option in your Web browser.
The Unit View does not display the latest port states. Every
time you want to change the port states or want to update the Unit
View, simply click Refresh (underneath the Unit View). If the Unit
View fails to show the latest port changes after a refresh, you must