Why Standby SMS show No communication ?

[todd]

Hi,

My customer standby SMS show " No Communication, Communication with dr-sms failed since ****".

I cannot open smartconsole to this standby sms.

From Active SMS server, standby SMS SIC communication is OK. 　

Is there any possible reason cause this problem ?

Thank you.

Todd

[simonemantovani]

Hello

did you check if all the services are running on the standby SMS? (cpwd_admin list)

[Martijn]

Hi,

Is there an error when connecting to the Standby SMS with SmartConsole?
Is there a firewall located between Active and Standby SMS? If so, anything changed there?

Check with tcpdump to see if traffic between servers if flowing as expected.

Regards,
Martijn

[Chris_Atkinson]

Can you ping between the machines, how are the date/time settings is ntp in sync?