AppUpdater (cl_appupdate)

I moved my site from a test laptop to a real Win 2012 R2 server and all is working fine EXCEPT for AppUpdater.

It worked perfectly on the laptop now I get the "Not Found" error from http response.
Tried it from the browser with same effect:

HTTP Status 404 - /apks/rd.txt

type Status report

message /apks/rd.txt

description The requested resource is not available.

Apache Tomcat/8.0.14

RDC works...

AppUpdater (cl_appupdate)

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