Sony TV 42 inches (DE22)

I have just taken it off my wall because netflix won't update on this.It works fine with a digital box like sky box, now t.v or any other.It was working normal channels fine with my sky box an sky channels but netflix stopped working and YouTube works but sometimes slow on it maybe needs re setting.its a older smart t.v with limited apps pre installed.condition of the.v itself is excellent and 42 inch Sony make.