Here is the solution:
Go in setting your router and check whether the N standard enables or approved.
Depending on the router disable the N-standard, disable the automatic default selection or setting the standard manual on b / g, b or g!
The main thing, the router can not use the N-standard!
(The default setting can be for example as 802.11g, 802.11b or 802.11n recognize as such or adjust)
Because then my "Täppi" PERFECT !!!
(Been using it for skype for example, or watch HD movie in a bathtub, of course, only with waterproof Case !!!)