Hi @Antonio Mendez ,
Could you please provide below information.
- Is your server hosted on a VM in Azure ?
- Whether it was accessible over Public IP or Private IP or did you any ?
- Will you be able to share your High level network diagram ? Which will have the source and destination and if any firewall/NSG .
- Could you please verify if it is accessible internally from the same VNet?
- Was there a change in your environment? please describe.
- Could you please check OS level firewall logs to ensure it is not blocking there.
- Could you please verify if the service on flexible server is running?
Looking forward hearing from you.