Hi, we are having difficulties with network connection inside our single story house in a major city. I am unsure why this is happening but I often only have 1 bar or none and when I am on a call it usually drops out or the person can't hear me. We recently bought a Sure Signal device and installed that. It appears to be connected properly and working but it hasnt changed the bars on our mobile devices at all. What else can we try? I will be sending the Sure Signal back as it hasnt worked.