General Troubleshooting - Comtrol DeviceMaster PRO Installation And Configuration Manual

General Troubleshooting

DeviceMaster Installation and Configuration Guide: 2000506 Rev. B
This table illustrates some general troubleshooting tips.
Note: Make sure that you have reviewed the
General Condition
PWR or Status LED
flashing
PWR or Status LED not lit
Can ping the Comtrol
device, but cannot open
the ports from a remote
location.
(You must have previously
programmed the IP
address, subnet mask, and
IP gateway.)
Cannot ping the device
through Ethernet hub
Cannot ping or connect to
the DeviceMaster
Troubleshooting Checklist on Page
Explanation/Action
Indicates that boot program has not downloaded to the
DeviceMaster.
1. Make sure that you have downloaded the most current
driver from: http://www.comtrol.com/support/
download.asp?partnumber=1800288.
2. Install the driver and configure the device using the MAC
address. Make sure that you reboot the system.
Note: If the PWR or Status LED is still flashing, contact
Technical Support.
3. If you want to program an IP address into the
DeviceMaster, you can use the procedure outlined in the
NS-Link User Guide (Page 10).
4. Remove the NS-Link driver.
Indicates that power has not been applied or there is a
hardware failure. Contact Technical Support.
The NS-Link driver uses Port 4606 (11FE h) to communicate
with the DeviceMaster.
When using a "sniffer" to track NS-Link packets, filtering for
Port 4606 will easily track the packet. The packet should also
contain the MAC address of the device and the originating PC
so that it can be determined if the packet is able to travel the
full distance one way or not.
If the 4606 packet is found on one side of a firewall or router,
using sniffer, and not on the other side, then that port needs
to be opened up to allow the 4606 to pass.
This will most often be seen with firewalls, but is also seen in
some routers.
Isolate the DeviceMaster from the network. Connect the
device directly to the NIC in the host system (see Page 97).
The default IP address is often not accessible due to the
subnet masking from another network unless 192.168 is used
in the network.
In most cases, it will be necessary to program in an address
that conforms to your network.
If you do not use the NS-Link driver to program the IP
address, you only have 15 seconds to disable the Bootloader
with Redboot to get into the setup utility.
See RedBoot Procedures on Page 75
of programming an IP address.
Troubleshooting and Technical Support - 99
General Troubleshooting
97.
for the Redboot method