This article applies as of PRTG 24
When sending an SMS text message notification via bulksms.de, got this error message: Error sending "SMS": Number=+1555123456, Message=Socket Error # 10060 Connection timed out.
Connection timeout when sending SMS via BulkSMS
The error message indicates that PRTG did not receive any response for the HTTP call. When you use the provider BulkSMS, check if your firewall is blocking outgoing connections and make sure that connections on TCP port 5567 can go through to BulkSMS' servers.
If changing firewall settings is a problem, you can also use the Enter a custom URL for a provider not listed option and enter the provider's URL. Use the default port number 80.
For more information, see https://www.bulksms.com/developer/eapi/.
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Disclaimer:
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.
