I have Grandstream GXP2124 phones. I just upgraded to 3CX version 12 SP3. I reset the config server path with the new provisioning path for V12 in the GXP2124 manually via the phone's web page. The phone appears to retrieve the config file and work normally. If I go back into the phone's web page, the config server path is reset back to the old path for V11. I updated the grandstreamexecutive.ph.xml file on the server with the correct config server path. I even updated the file using the /%%PROVSUBDIR%%/ variable then again using the actual subdirectory name. Each time I test (manually entering the correct path in the phone's web page, save config and reboot) no matter what path is in the config file, the phones config server path always resets to the V11 path (without the /%%PROVSUBDIR%%/). Where is the phone picking up the old file path from?