User manual

Appendix - Troubleshooting
myUTN User Manual Mac 145
A connection to the UTN server cannot be established
A common port will be used for the data transfer between the UTN
server and the SEH UTN Manager that is installed on the client.
52.
Possible Cause
 The port numbers are not identical.
The current port number cannot be transferred to the SEH UTN
Managers that are installed on the clients.
The 'SNMPv1' parameter has been disabled; see: 39.
 The communication is blocked by a firewall.
A connection to the USB port cannot be established
Possible Cause
 The access control for USB devices is enabled 86.
 No driver software for the USB device is installed on the client.
 The USB port is already connected to another client.
A connection to the myUTN Control Center cannot be established
Eliminate possible error sources. First of all, check:
- the cabling connections
- the IP address of the UTN server 14 as well as
- the proxy settings of your browser
If you still cannot establish any connection, the following safety
mechanisms might be the cause:
 The access is protected via SSL/TLS (HTTPS) 82.
 The access is protected via SSL/TLS (HTTPS) and you deleted the
certificate (CA/self-signed/PKCS#12). Reset the parameter
values of the UTN server to their default settings to get access
111 . Previous settings will be deleted.
 The TCP port access control is enabled 83.