diff --git a/inferium-harvester.lua b/inferium-harvester.lua
index 8ce9e1c..a49bd3f 100644
--- a/inferium-harvester.lua
+++ b/inferium-harvester.lua
@@ -280,15 +280,19 @@ local function fetchRemotePlan()
     local replyMessage, errMessage = net.sendQuery(INFERIUM_SERVER, message, NETWORK_TIMEOUT)
     if replyMessage and replyMessage.payload then
       previouslyFetchedRemotePlan = replyMessage.payload
+      print('> plan fetched')
       return replyMessage.payload
     elseif previouslyFetchedRemotePlan then
-      print('> failed to fetch remote plan, use the previous one instead')
+      print('> failed to fetch: ' .. tostring(errMessage))
+      print('> use the previous recorded remote plan instead')
       return previouslyFetchedRemotePlan
     elseif not replyMessage and errMessage then
       if lastErrMessage ~= errMessage then
         lastErrMessage = errMessage
         print('> failed to fetch: ' .. tostring(errMessage))
       end
+    else
+      error('unknown error during fetch')
     end
 
     os.sleep(IDLE_TIME)