SMB over QUIC is a network protocol used by Windows. It allows secure, shared use of resources such as files on the network. To use SMB (Server Message Block) without QUIC, TCP port 445 is required. Some Internet providers block TCP port 445 for security reasons. Therefore, it is not possible to connect to a file share on Azure by SMB successfully.
To bypass the blocking of TCP port 445, there are several options to choose from, including the following:
- VPN (Virtual Private Network), e.g. AlwaysOnVPN
- Third party software, e.g. MyWorkDrive
- SMB over QUIC (Quick UDP Internet Connection)