Search peer indexer1 has the following message: License Manager: Failed to contact license master: reason='Unable to connect to license master:

[sarnagar]

Search peer indexer1 has the following message: License Manager: Failed to contact license master: reason='Unable to connect to license master: https://xxx.com:8089 Connect to=https://xxx.com:8089 C timed out; exceeded 30sec', first failure time=1526522560 (Wed May 16 22:02:40 2018 EDT).

What does this banner msg indicate?

pass4SymmKey were set up between the license master and the Indexers...
What does this sudden banners msgs indicate and why do we get these all of sudden, which was fine till date.

Kindly help

[solarboyz1]

Looking at the error:

License Manager: Failed to contact license master: reason='Unable to connect to license master: https://xxx.com:8089 Connect to=https://xxx.com:8089 C timed out; exceeded 30sec', first failure time=1526522560 (Wed May 16 22:02:40 2018 EDT).

You could increase the connection timeouts for the license server in server.conf:
http://docs.splunk.com/Documentation/Splunk/7.1.0/Admin/Serverconf

[p_gurav]

Is there any connectivity issue between license master and license slave? Can you try using telnet command for 8089 port to license master from license slave?