Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It works at first, then it doesn't

Setup was a breeze, probably because I only use MAC address filtering rather than WEP, etc. Once setup, my network was expanded and everything was good for 2 days. Then the expander seemed to stop working, and needed to be reset to make it work again... every 1-2 hours. Then it started interfering with the network, i.e. signal was strong but there was no Internet connection. I recommend going with a Panasonic Powerline -- it works like a charm:Panasonic BL-PA100KTA Ethernet Adaptor Starter Pack Includes two HD-PLC (High Definition Power Communication)