I have had a LevelOne wireless router G which I have been using for over 5 years without much problems with WEP encryption.
As recently I have added a ROKU player for TV streaming in a different floor (wireless connection) of my home, I was trying for an upgrade to the new N routers - even though the G router was able to support the streaming without much fuss.
First I bought a dual band N600 belkin router which had so many connection drops, I had to return it in a week. Now I got a 300 MBps ASUS single band (2.8 GHz) router which too makes my devices - computers and ROKU struggle to connect wirelessly. There are so many connection drops and buffering - it's not even close to the G router.
I've now temporarily switched back to the G router, and it's working quite flawlessly. The difference was so clear -- the whole family feels it readily because now the TV is dependent on it too.
Now, I am perplexed what's wrong with the newer and faster technology that I have had this problem in two separate occassions -- The only difference to my knowledge was - I used WPA2 encryption on the new N router vs. WEP password on the old G router. Other features including MAC filtering and Firewall function, DMZ etc are all turned off.
I have a time warner cable internet, which first connects to my VoIP (Ooma) phone adapter and then in turn to the wireless router. All these are in an upstairs room closet -- there are quite a few walls between the family room where I actually use the computers and ROKU to the closet in which I could place the routers and VoIP adapters etc (This is the only place I have the wall phone connection and cable connection, and therefore the only place where the VoIP adapter and wires can be setup...There is one more place but it is in high traffic area and therefore would look messy.)
Thought of asking an expert forum before deciding to return even the 2nd router and say good bye to the 802.11N for a few months/years.