Same thing happening to me. Used to call this "memory leak" in the old days. A gradual build up of digital garbage until memory is wacked. You must reset the hub or the TV (settings). The problem is it dumps all applied data when reset. (wifi hook up, apps, etc). This a royal pain. I get the impression that Samsung Tech support cannot handle these types of issues. They need to put someone on this, not just let tech support take the heat. Where is management - don't they read the forums? This is an ongoing issue with many customers, apparently, and reviews are going to sour. Better get on it!!
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