After years of tolerating this frustrating annoyance relating to this chronic LAN disconnect issue, I may have just discovered, if only by chance, the solution to this issue. For a brief timespan, my set stopped detecting any other wireless connections (i.e. other neighbors.) Because I had chosen to finally just get a new set, I had moved to problematic one to a different room. In that new location, the problem has since RESOLVED 100%! Now it detects every neighbors signal in my apartment building, but it instantly connects wirelessly and the the signal no longer EVER drops. So perhaps, device location in one's living quarters may be direct impacting the modem's signal. All I know, is that the problem NO LONGER EXISTS! That's the rap. I hope this almost 'serendipitous' action works to everyone else's benefit.