I have a Xojo web app that makes a simple call to a web service that authenticates the user. After upgrading the server from ancient Apache 2.2.15 to 2.4.41 my Xojo app could no longer receive/process the result coming back from the server. I know that I'm making an HTTP/1.0 Post operation and thus am expecting a similarly versioned response. I've used PAW and/or Curl to test the web service call with no issues under either version of Apache. I assumed the updated service was sending back the wrong format so I added the directive to Apache to always send back HTTP/1.0 and confirmed the response has the HTTP/1.0 headers now...and yet my Xojo program just doesn't seem to acknowledge a response. It "times out". Even though my Server logs indicate that the POST was received...processed..and a response was returned. If I shut down Apache 2.4.41 and restart Apache 2.2.15 -- the Xojo app works fine again. Ive been comparing the raw response from Curl and see no difference in the response. Since the problem only plagues my server running Apache 2.4.x I have to assume it's fixable by a configuration change. I don't really want to change the Xojo program to use the HTTP 1.1 newer POST format if I don't have to. The argument values I'm transferring are in Form Data format. Any ideas appreciated. I really need to run the more modern (security patched) Apache version.