Computer Hope

have win 8.1, and windows defender as security. i restored my

computer to factory, did all the updates about 4 weeks ago do

to different problems.
   my problem is windows keeps loosing its ability to

find my casting devices such as google chromecast and my

stereo. i didn't have this problem after restoring and updating

my computer but 3 weeks in i started having this problem. the

devices show up on my network on my other computers but not

this one. i like to use it every night to stream movies to my

chromecast from either vlc media player or microsoft edge but 

they wont show my divices when i want to cast.
   i did a restore point back a week or so and regained

casting, but lost it the next day, so ive been going back to

that point every day, and have noticed in just a couple hours

after going back to Whear it works, it all of a sudden stops

showing up when i want to cast.
   when i try to cast i am online and on my network, but

shows no divices to cast to. would appreciate any help on this

issue as i cant figure it out. fred