I’m getting Error code 155 when deploying Sophos Cloud

4/26/2018 1795 Contributors

Purpose:

To identify why you receive error code 155 when deploying Sophos Cloud

 

Resolution:

Error code 155 according to Sophos is:

Installation blocked because tamper protection is enabled

Disable any previous versions of Sophos and try installing again.

IMPORTANT: In certain cases where Sophos Tamper Protection is enabled and Sophos Firewall is installed, Sophos may turn on the firewall if it detects a certain level of tampering. Depending on the settings, this can stop ingress and egress network traffic from the machine, requiring a local login and manual disablement of the Sophos firewall.

 

See also:

https://www.sophos.com/en-us/support/knowledgebase/122157.aspx