SEH myUTN utnserver Pro User Manual page 102

USB Deviceserver User Manual macOS
Fault
USB devices are not shown in
the SEH UTN Manager
The SEH UTN Manager dis-
plays several USB devices on
one USB port.
The connection to the USB
port (and the connected USB
device) cannot be estab-
lished in the SEH UTN Manag-
er.
The connection between the
SEH UTN Manager and the
UTN server cannot be estab-
lished:
• The UTN server does not
appear in the SEH UTN
Manager.
• The UTN server is grayed
out in the SEH UTN Man-
ager.
Cause
• The USB device is no longer con-
nected to the UTN server.
• The SEH UTN Manager and the UTN
server firmware/software are in-
compatible.
• The USB port is deactivated.
• Too many compound USB devices
are connected to the UTN server.
The number of virtual ports has
been exceeded  22.
The USB device is a compound USB
device. It consists of a hub and one or
more USB devices that are all inte-
grated into a single housing. When the
connection to the port is established,
all the displayed USB devices are con-
nected.
• The USB port is already connected
to another client (in use by another
user).
• The driver software for the USB de-
vice is not installed on the client.
• Access to USB devices is restricted.
• The UTN port is blocked, e.g. by se-
curity software (firewall).
• The UTN port is not identical (you
changed the port number).
98
Fix
• Check if the USB device is connect-
ed.
• Update the SEH UTN Manager (
11) and the software ( 92).
• Switch on the USB port power sup-
ply  86.
• Remove compound USB devices to
free up virtual ports.
—
• Wait until the USB device is avail-
able or request the used USB de-
vice.
• Install the USB device driver on the
client, e.g. by connecting the USB
device directly to the client.
• Check the access settings for USB
devices  81.
• Enable communication through
the UTN port on your network.
• SNMPv1, which is required to for-
ward the port change to the cli-
ents, is disabled. Enable SNMPv1 
68.
Appendix