Model: DDU-24/26
Doc. Ref. no. : - m06bom101
Issue no. 09
Page 50 of 51
User’s Manual
1. Verify that the NTP server(s) specified are reachable, communicating, and are not flagging their
reported time as invalid.
2. Verify that a gateway/router/firewall has been configured that allows the clock to communicate
outside of its local network.
3. Verify that the IP address configured for the clock is correct. If you manually enter an IP address that
already exists on the network, this will create an IP address conflict.
4. Obtain a new IP address for the clock or resolve the duplication. Consult your IT/Network
Administrator for a list/range of available IP addresses to avoid IP address conflicts.
5. Verify that the clock is connected to the Ethernet LAN.
6. Verify that all network cables, hubs, etc. are in proper working order. Be sure that Ethernet crossover
“patch cables” are not being used where inappropriate.
TELNET Configuration for WINDOWS 7:
If TELNET window is not opening in windows-7 Operating System, then go to My Computer
Find
window
write TELNET as shown in below Picture.
By Pressing enter you can see the TELNET file. By double clicking on that TELNET file it will open
new window as shown in below figure.
If these troubleshooting tips do not solve your problem then, please contact Customer support
at either nearest area office or Main Head Office as given on the first page.
