We have started having strange problems with our SmartNode. I decided to upgrade to R5.3 which is the main supported version of 3CX. Unfortunately it did not fix the issue but I did want to know if the VOIP Link indicator light on the front is suppose to be flashing green? The manual says that it indicates a problem if flashing. If it is suppose to be a solid green or not showing at all then that may assist us in fixing our other issues. Thanks. FYI, we used the export configuration file from 3CX to setup the SmartNode.