Wireless Not Detected - Xbox 360 S says I have an ethernet cable connected

For the past few days, I've been having problems connecting to Xbox Live with my Xbox 360 S.  The Xbox says I have an ethernet cable connected when I don't.  I have never had an ethernet cable connected - always wirelessly connected.  When I try to check my connection options, the wireless connections flicker up but then go away again.  Also, a few days ago, I had problems with the Xbox starting up.  It has been slow to start up, and I did get a single red light in the center once.  Any ideas?

 

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Last updated July 4, 2018 Views 2 Applies to: