Lantronix
x4120 User Guide
33551 Rev. C
Page
66
of
142
This message indicates that HyperTerminal no longer recognizes which COM port to use for its
connection.
1. Check that the USB cable is connected to the management station and the IONMM.
2. Check that the COM port is listed for the device manager on the management station.
a)
On the desktop, right-click on
My Computer
.
b)
Select
Manage
.
c)
Click
Device Manager
.
d)
In the right panel, expand the list for
COM & LPT
.
3. Is the COM port in the list?
Yes
No
Continue with
step 4.
Restart the management station (PC).
4. In the HyperTerminal window, select
File>Properties
.
5. Check that the correct port is listed in the
Connect using
field.
6. Restart the management station.
7. Reboot the IONMM.
8. If the problem persists, contact Technical Support.