this is a known issue
yes there is a memory leak
it’s particularly bad with youtube, but other things are affected as well
factory reset, you can try if you like
alternative reset option is here http://community.wd.com/t5/WD-TV-Live-Streaming/WDTV-Reset-EVERYTHING/td-p/845085
these might help a bit
but will definetely NOT solve the memory leak, that would have to be fixed via a firmware update by WD
