Hi Dan,

This message could be considered harmless if sporadic (for your information we are considering to downgrade this log message to info level).

But please also consider that with the latest versions of Lightstreamer server the factory configuration of https is more severe with regard of protocols and cipher suites considered by now too weak.
Please refer to the settings for <remove_cipher_suites> and <remove_protocols> and note that this may be too restrictive for some old user agents.

Regards,
Giuseppe