Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works? Not if they can help it

I bought the range extender and set it up and it seemed to work for about an hour when it itterupted the wireless signal and required me to restart the network. I tried talking to Cisco who at forst gave me the runaround since my router was out of warranty, nothing wong with router. Afgter much complaining I finnaly spoke with someone who then told me my router was not compatable..... HMMMM the box says it was...... oh they found someone who can't type and left off the 2 on the website. The same build firmare and release date but they can't figure it out. I WILL NEVER BUY AGAIN. customer service is very important for me and to get snubbed like that gets me angry and frustrated. I am NOT a NOOB to the computer world and when something doesn't work and you won't help.... I will be sure to tell hundereds of people.