I don't have an answer to this, but actually want to re-open this thread as it doesn't explain what is going on with my system. I have 5.0.2 indexers (5) and search heads (2) controlled by a deployment server VM and then a bunch of 4.2.3 light forwarders that are ALL getting this error repeatedly. This is a new system and is very un-loaded, so that explanation doesnt seem correct to me. I would like to know more what exactly the message means. I get that its "didnt get a response" but its not giving any indication as to who the client was. And that it is coming in on ALL the systems logs (indexers, search heads, deploy mgr, forwarders alike) is concerning. ... View more