As can be read in the "heading" already, the TP-LINK 821N initially has totally convinced. After about 5 months but then the problems started. The connection is interrupted again and again to the wireless network and takes forever to this again is built - was several times with a fresh installation of Windows 7 (Ultimate / Professional) (all relevant drivers have been properly installed) tested.
Why now only 1 star will be some questions? Quite simply -> TP-Link, it has still not managed to bring out a licensed / functioning Windows 8 drivers. Except for a "Beta Driver", which has at least does not work with me. Really weak ...
Conclusion: first as described above TOP and then suddenly flop. I buy in any case no more TP-Link.