Failed to connect to the firewall driver, error 2. Please ... contact ... support

Question

Whenever I start my PC or attempt to restart the Sophos Firewall service I get the following error: 4/25/2011 5:28:53 pm Failed to connect to the firewall driver, error 2. Please restart your computer and, if the symptoms persist, contact Sophos technical support. How do I fix this?

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jak · Accepted Answer

Hi,

Error 2 usually suggests file not found: http://msdn.microsoft.com/en-us/library/ms681382(v=vs.85).aspx

I can only assume that the driver file or files are not there, i.e.

\windows\system32\drivers\scfdriver.sys \windows\system32\drivers\scfndis.sys 
 You could also run from a command prompt: driverquery | find "scf" to see if the above are loaded or run msinfo32 and take a look under: "Software environment" - "System drivers" If they are not there, I would suggest a reinstall might be the easiest fix.

Regards, 
 Jak :12339