I'm not sure what changed but when I recently upgraded via yum to Kernel 2.6.34 none of my uPnP or DLNA apps show up on my tvs (Sony TV and PS3). Booting an older version, i.e. 2.6.33 solves the problem with no other changes. I use MediaTomb, MythTV uPNP server and Serviio. All work fine except with the newest kernel.
Any ideas what changed?