While they are right, try the usual as networks look to be playing with their users.
1. Read http://forums.cnet.com/7723-13973_102-597473/samsung-un32eh4003f-wireless-issue/?tag=contentBody;threadListing
2. Be sure the date and time as well as TV firmware is up to date and like Windows, uninstall and re-install cranky apps.
Yes, it's not Windows but with fingers pointing every direction, it feels like it.
I have had Vudu on my TV ever since it got it.. It worked perfectly. the last couple of months is a crap shoot as to whether it will open. Typically, it starts, then down in the left hand corner, it says "updating" and that's where it stays. Contacting Vudu, they said to contact Samsung. Help!!