in the world of routers i have noticed that all makes, shapes, sizes are just as likely to go wrong as any other....
having installed 200+ routers now i still cant suggest a brand to anyone sure dlink draytek zyl linksys (cisco) netgear belkin all make nice gear but its so random on how well it will work....
and thats just cable routers dont get me started on adsl routers/modems and line length - but i do admit the zyxel adsl gear is very nice for long line length signals.
as for the wireless side of thing - so many factors that can make it all go wrong - firmware - security - drivers on the pc's etc etc
my last words would be - i dont have much luck with netgear or linksys i also find the linksys interface lacking. but thats just me