3Com SuperStack II 32x Installation Manual page 53

Table 4-4 Troubleshooting the Token Ring Connection (Models 327 and 527 only) (continued)
Symptom
Path 1 is up, but the system does not
appear to be communicating with
other network devices.
The following error message appears:
This is the only station
on the ring
One of these error messages appears:
Possible ring speed
mismatch
Adapter is not connected to
a ring
or
Open failed during phase
- lobe media.
Specialty powered wiring center
(MAU) or signal conversion device
(such as STP-to-fiber optic transceivers)
will not work on STP connector.
(continued)
Troubleshooting the Token Ring Connection
Cause and Action
The system may have attempted to enter the token ring at the
wrong speed.
Check the setting of the ring speed for path 1 (SHow !1 -PATH
BAud). Make sure that the setting of this parameter matches the
speed of the token ring network.
If your system is the first device to enter the ring, disregard this
message. If there are multiple nodes on the ring, your system may be
isolated.
1 Determine the number of nodes on your ring.
2 If there are multiple nodes on the ring, check the setting of the ring
speed for path 1. (In monitor mode, enter CL, then select ring speed
from the menu that displays.) Make sure that the setting of this
parameter matches the speed of the token ring network.
Possible physical connection problem or the system may have attempted
to enter the token ring at the wrong speed.
1 Check your LAN cable.
2 Determine the ring speed of your token ring network.
3 Check the setting of the ring speed for path 1. (In monitor mode,
enter the CL, then select ring speed from the menu that displays.)
Make sure that the setting of this parameter matches the speed of
the token ring network.
External device may have overstressed the auxiliary power's limits,
lowering available voltage to unacceptable levels.
Refer to the cabling information in your hardware installation
manual for voltage, current, and pinout specifications of this feature.
Refer to the documentation that accompanies your external device
for compatibility information.
External device may have blown the fuse of the system.
Return the system for fuse replacement.
If these actions do not solve the problem, contact your network supplier.
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