Hello @Kurvenal, could you reinstall the Roon remote app for your iPhone and let me know if you notice a difference? Afterwards, I’d like to enable diagnostics for your account so we can take a look. Could you also please provide the following details? Thanks!
So we can better assist you, please provide a brief description of your current setup using this link as a guide.
Make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating.