TWX 9.4 some performance problems - Timeouts/Connection refused/404

Hello community,

I would like to learn when thingworx return a timeout or connection refused or 404. I put to you in context, we have a simulated device that send data to one thingworx endpoint each 15 seconds, and sometimes we receive the next errors:

• timeout errors (Appear in our log as "Task cancelled" as a connection attempt will timeout after 5 seconds.)
• Connection refused error (Connection refused only occurred 3 times, the others more often)
• 404 error

Here I can put some logs:

timeout error - reference to TaskCanceledException

Connection refused

Can you help me to discover which is the problem and when happen each error? 

Thank you in advance,

Luis.