Connection error related to sql azure database instance

I use the azure sql database service, I try to connect to the server where I have hosted the database and in a specific network I can not connect, however, from other wifi networks if I can connect. perform a telnet to port 1433 and I do not respond. Another fact is that I already configured in the azure firewall the corresponding ip, I can ask the internet provider about it or is it a matter of lack of configuration on my part, I thank you in advance, the error is as follows:
TITLE: Connect to Server

Cannot connect to server.database.windows.net.


ADDITIONAL INFORMATION:

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: TCP Provider, error: 0 – An error occurred during the connection attempt because the connected party did not respond properly after a period of time, or the established connection failed because the connected host was unable to respond). (Microsoft SQL Server, Error: 10060)

For help, click: https://docs.microsoft.com/sql/relational-databases/errors-events/mssqlserver-10060-database-engine-error


An error occurred during the connection attempt because the connected party did not respond properly after a period of time, or an error occurred in the established connection because the connected host was unable to respond.

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