Hello Lucas,
We are currently implementing ssdp device discovery for Panasonic TV vDC. TV was not responding to M-SEARCH.
After short investigation it turned out that there is needed different formatting of line endings and additional new line in M-SEARCH header field.
According to http://upnp.org/specs/arch/UPnP-arch-DeviceArchitecture-v1.1.pdf:
- point 1.1.1
- page 32: "Note: No body is present in requests with method M-SEARCH, but note that the message MUST have a blank line following the last header field."
After modification I checked also with Hue - it is still responding to M-SEARCH.
Could you please have a look?
Best regards, Marcin
@kheberlein FYI