Troubleshooting network connectivity in Azure is about identifying and resolving issues that prevent communication between resources.
Some of the steps one can take to fix connectivity issues include: gathering information from logs, configuration files and network topology diagrams.
Tools like Azure Network Watcher, Azure Monitor, and Azure Log Analytics can be used to isolate network issues when identified for further analysis to find the root cause before implementing a solution.
You can create alerts in Azure monitor, to monitor and detect network related issues. Network Performance Monitor can track performance metrics. Potential network issues are also logged in the Azure Log Analytics, making it also a good resource for troubleshooting network issues. You can also assess the network configuration with Azure Network Watcher for insight on potential issues.

Ireland | Bobby Abuchi