As per them restore job was failing with errors. Let us learn how to solve Log Shipping Job Error: Failed to Connect to Server.
Question: What are Ports Needed to Configure Log Shipping?
The blog topic might seem controversial and doesn’t go well with definition of log shipping features. Read it again. The blog has an alternative way to set up something “similar” to log-shipping. If the database is in simple recovery model, then we can’t take transaction log backups and hence no log shipping possible.