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mischmuc089's avatar
mischmuc089
Copper Contributor
Mar 25, 2025
Solved

Service Bus: Ip has been prevented to connect to the endpoint

Hi Since yesterday we are facing issues with our Azure Functions (ASP) connecting to the Azure Sevice Bus (Standard, not in VNET). This was working before without any issues and since yesterday it i...
App Services
azure functions
NAT Gateway
networking
Service Bus
VNET
  • mischmuc089's avatar
    mischmuc089
    Apr 02, 2025

    Microsoft Support was able to help me. The rootcasue was a missconfiguration in the Sbunet. We are using the SBN Standard and in the Subnet the Service Endpoint of the SBN was assigned. After removing it, the network was working again. I just wonder why this was not a problem before, the configuration of the subnet was not touched since month. Howerver, If you are using the SBN Standard in combination with Ature Functions in Vnet with or without Nat Gateway, do not assign the Service Endpoint of the SBN to the Subnet as the communication is rotuted over the internet.

mischmuc089's avatar
mischmuc089
Copper Contributor
Apr 02, 2025

Microsoft Support was able to help me. The rootcasue was a missconfiguration in the Sbunet. We are using the SBN Standard and in the Subnet the Service Endpoint of the SBN was assigned. After removing it, the network was working again. I just wonder why this was not a problem before, the configuration of the subnet was not touched since month. Howerver, If you are using the SBN Standard in combination with Ature Functions in Vnet with or without Nat Gateway, do not assign the Service Endpoint of the SBN to the Subnet as the communication is rotuted over the internet.

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