If you are running one of the Orders2me integration apps (POS Connector or Aldelo POS Integration) on your PC & run into some issues such as below in your event viewer:
-ERROR FETCHING ORDERS
-UNABLE TO FETCH ORDERS
This is a most probably a DNS issue.
You may want to try updating the network to use Google's DNS servers (220.127.116.11 and 18.104.22.168).