Unable to connect to the Instant JChem Update ... DH keypair

Having a problem downloading plugins from Instant JChem 16.5.30.0 running on Mac OS (tested on 10.6.8 and 10.10.5 at two different network locations).   

After hitting "Reload Catalog" (Tools->Plugins-Available Plugins), the following error message is displayed.  

"Unable to connect to the Instant JChem Update Center because of java.lang.RuntimeException: Could not generate DH keypair"

I changed the network proxy setting a bit but no avail (the default setting is "No proxy" here).  The same error message persists.  

Any help will be appreciated.  

Hello,

thank you for noticing this. We will fix this. Meanwhile, please edit your AUC and AUC API connection strings so that they use http instead of https. See attached screenshot. This will resolve the problem for you till the fix comes around.

Wishing all the best

David