Lab 3.4 - Curl command to exposed service is unresponsive.

Hi- I am able to run everything in lab 3.4, and even went through the previous sections of lab 3 to confirm I didn't miss something again. Everything goes smoothly except when trying to reach the service itself; albeit by the 'cluster ip' or the 'endpoint'. I have been to calico's site, and tried looking for some solutions. 'tunl0' is up on both the master and worker nodes, however I am unable to curl or telnet. Curl fails on the worker node itself. I have included some screenshots, but not sure what else to do in order to validate that calico is fully operational other than to ping or curl. Thanks.