In this json file, you will see the IP addresses for the 24 Helium seed nodes, as well as your hotspot’s connect status to the seed nodes. Your hotspot needs at least 1 successful dial to connect to the blockchain and mine. If all 24 dials ‘failed’, then you have a network issue. In this scenario, you should follow the steps provided on this community resource to fix your network.
Dig is used for retrieving information about DNS name servers and is commonly used by network administrators to verify and troubleshoot DNS problems and perform DNS lookups.