I put two new DNS on my iMac, but don't know why!
The story is a little complicated. We bought a stick of ROKU and installed in our HDTV. We had continuous problems with streaming. To halfway through most of what we were looking at a status bar 'recovery' presented and crawl slowly until towards the end a message informed us that the program could be is over looked. I went back with CS ROKU and they offered several fixes. After being annoyed for probably the last time technology has suggested I go into my iMac Preferences > network > add DNS and select two new DNS sites which recommended. He believed that this was the problem. So I did this and tested the ROKU streaming three hours but this time without any buffering.
I don't know exactly how applying these two new sites DNS on my Mac is to correct the problem and whether it will continue to provide the cure. Anyone know?
DNS is usually assigned by your ISP, however, there may be cases where using third-party DNS settings are beneficial. Roku is a third-party product, you should contact Roku if you having problems using their product. Personally, we use the Apple TV in my house and have had no problems.
If you want to learn more about what DNS is, I recommend Googling and you'll find a variety of items available. A good starting point is
https://en.Wikipedia.org/wiki/Domain_Name_System
Tags: Mac
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