My Roku TV does not respond to either mDNS or SSDP queries when attempting to wake it. It is currently running software version 14.5.4.
Under normal operation, I observe frequent mDNS packets and occasional SSDP messages in Wireshark. During this state, I’m able to control the TV using the Roku mobile app without issue. I can successfully send and receive SSDP messages to obtain the device name and IP address, and I’m also able to send ECP commands. Fast TV Start is enable.
However, once the TV enters its low-power state, the behavior changes:
The Roku app is no longer able to communicate with the TV, even if I turn it back on using the physical remote and resume normal video playback.
mDNS traffic becomes extremely sparse — only appearing approximately once every 3 minutes or longer.
SSDP messages are sent very rarely — occasionally in bursts of 9 messages, but these are infrequent and unpredictable.
This behavior suggests that once the Roku TV enters its low-power mode, it significantly reduces or suspends its network activity. As a result, it becomes essentially undiscoverable and unresponsive to mDNS and SSDP queries — even after being turned back on via the remote.
