Problem:
My computer went to sleep with RHAON running and now I cannot communicate with my loudspeakers or see any of them
on the network.
Solution:
The CobraNet Components have not recovered from sleep mode. To fix, close RHAON (and, if running, CobraNet Discovery)
and bring up the Windows Task Manager (Ctrl-Alt-Delete). Under the “Processes” tab , look for ‘PACNDISCO.EXE’ and ‘PASS-
BRIDGE.EXE’ (Windows may shorten the name and add ‘~1’). Select them and click “End Process”. Proceed to re-open RHAON
and/or CobraNet Discovery.
An alternate method of restoring normal operation is to Restart your computer.
To prevent this from reoccurring set your laptop’s Hibernation / Sleep settings to “Never”.
Switch-Related Issues
Note that unmanaged switches have no configuration. If you believe an error is related to your unmanaged switch, consult your
switch’s documentation.
Problem:
I placed my RHAON devices on the same network as other devices (venue PCs, lighting, etc.) and now either RHAON or the
other devices are acting abnormally.
Solution:
It is recommended that your RHAON network is placed on a network separate to that of anything else. If it is absolutely nec-
essary to have them running through the same switch, it is recommended to use a managed switch and set up separate Virtual Local
Area Networks (VLANs), grouping the ports you wish to use for RHAON in one VLAN and the ports for other devices in another.
Problem:
I have set up my VLANs but now I cannot connect to / scan for the RHAON loudspeakers on my network.
Solution:
• Verify the physical ports that both your RHAON loudspeakers and your computer are connected to are all on the same
VLAN.
• Verify that SNMP traffic (UDP ports 161 and 162) and CobraNet traffic (Ethernet protocol identifier 0x8819) are allowed on
your VLAN. Consult your switch documentation for how to configure VLANs.
Problem:
I have to wait 10-20s in order for my device to be “connected” and the flurry of traffic to begin when connecting my loud-
speaker to the switch.
Solution:
Your switch may have Spanning Tree Protocol (STP) turned on. STP prevents accidental looping in your network topology,
but unfortunately needs to run an analysis on any new connection before it is deemed OK to be “on”. If you do not desire the delay
and don’t need any services STP provides, turn off STP on your switch. Consult your switch documentation for instructions.
Notification Email Related Issues
Be aware that for Email notifications or using Remote Desktop-type software to control the RHAON computer, a second network inter-
face connected to a separate network is required.
You will need to contact the network administrator at the installation for details on connecting to their Simple Mail Transport Protocol
(SMTP) server, also known simply as ‘the outgoing email server’.
Problem:
I am receiving errors attempting to send emails with an Error Message of “The specified string is not in the form required for
an e-mail address.”
Solution:
Be aware that what you enter in the “Name of Installation:” field is used as part of a spoofed “From:” field in the notification
email. Use of non-US-ASCII characters in an email address is invalid. For example, use of Greek letters, symbols not on a US key-
board, or the ‘@’ symbol are not allowed. For more information, please visit: http://en.wikipedia.org/wiki/e-mail_address.
FAQ and RHAON Network Troubleshooting Tips (Continued)
61
Users Manual
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