Newly installed Liftmaster 8550 goes offline constantly.

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Newly installed Liftmaster 8550. Added a repeater to ensure strong wifi signal in garage. I get four full bars. The app will connect briefly, then suddenly go offline for extended periods, sometime going back on line. Or I have to reprogram it.
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John McComas

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Posted 6 days ago

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John McComas

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Called Chamberlain support and spent 20 mins going through the same procedures I had done myself.  When I explained to the support rep that I had done this several times before, he just kind of glossed over it.  So naturally after redoing the setup procedure with the rep on the phone, the MYQ app worked, but just like before it went offline within minutes.  So I'm back where I started and just wasted time.  With all the postings of this and similar problems, I can't believe Chamberlain isn't taking it more seriously.
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My-Q FTW

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Try holding the black adjustment button until a blue light comes on, then do the setup.myqdevice.com procedure. I had the same issue with my 8500W and tried this
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John McComas

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The problem is that it keeps losing connection.  I will do the set up and it will show connected, then a few moments later will say no connection with server.  Sometimes it will spontaneously reconnect, only to disconnect a short time later.  So the problem is a case of only working intermittently.  I have four bars of wifi in my garage, so I suspect it's the 8550 router that has a connectivity issue.  And from the posts on this group, it would seem a somewhat prevalent problem.