To get connected is sometimes a bit quirky, at least with my router (Buffalo). I first assumed it has something to do with range to AP, but now I believe it has nothing to do with it, it does the same whether the range. Sometimes it needs several retries to get connected. After initial struggle, it usually keeps connection well. I have had best odds (0-2 retry needs), if I enable wlan first using connection manager before opening browser. If I open browser first (wlan off), it needs half of dozen retries, before I have stable connection. This is pure empiric testing, don't have any ideas why.
Maybe this is the reason for Mobile Gazette's assumption: You first try it in 10 meters range:not working, second try 5 meters: not working, third 1 meter: working. Assumption:Range problem.