In ArcGIS for Server 10.3, a Web Map Service (WMS) GetCapabilities request displays comma delimited coordinate values instead of a decimal delimiter coordinate values as displayed in version 10.2.2. This issue occurs with ArcGIS for Server is installed on European operating systems.
Create an external capabilities file. In the editor, change all of the commas to decimals manually.Refer tothe documentation below:<a href="http://server.arcgis.com/en/server/latest/publish-services/windows/using-external-capabilities-files-with-wms-services.htm" target="_blank">http://server.arcgis.com/en/server/latest/publish-services/windows/using-external-capabilities-files-with-wms-services.htm</a>