We lose connection a few times per day, probably since a week or so before Christmas, the other night my connection dropped 3 or 4 times during a single one hour TV show we were watching on Netflix.
I'm on a Huawei HG633 router if that makes any difference.
This seems to happen mostly when we're streaming content or downloading files, more heavy duty usage. General use of mobile phones looking at facebook and reading news doesn't seem to cause this issue.