My Roku TV does not respond to either mDNS or SSDP queries when attempting to wake it. It's currently running software version 14.5.4.
Under normal operation, I can see 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 any issues. 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.
However, once the TV enters its low-power state, the situation changes:
The Roku app is no longer able to communicate with the TV, even if I use the physical remote to turn the TV back on and stream videos as normal.
Wireshark shows that mDNS traffic becomes extremely sparse, appearing roughly once every 3 minutes or less.
SSDP messages are sent only sporadically — sometimes 9 are sent together, but very infrequently.
This behavior suggests that once the ROK TV enters low-power mode, it severely limits its network activity, making it essentially undiscoverable or unresponsive via mDNS/SSDP — even after being turned on via the remote.
