About a month ago, I installed a wireless CCK to replace my powerline connection that had died, with the help of the info in this post. http://www.dbstalk.com/topic/210533-powerline-died-how-to-install-cck/page-2 Since installing the CCK, we have had frequent wifi problems with other computers in the house. Connections have become unreliable, with lags and complete dropouts. The worst one is the PC that is located furthest from the router, and the CCK is closer to the router than that PC. Since this is the only thing that has changed on the network, I'm assuming that the CCK is somehow interfering with the other connections. I'm not terribly savvy on wifi networking. We have an ASUS RT-N66U (dual band) router. I have gone into the router software, but don't really see anything that would explain the problem. I do not know if there is a way to see which clients are connecting to which band, but I assume most are connecting to the 5GHz band. Is there something easy I can do to try to troubleshoot this? Or should I try the wired route with the CCK? At the router location, I have an R16. Someone mentioned on my earlier thread that I could connect the R16 to the CCK using a splitter and a band stop filter, and hard-wire the CCK to the router. Is that correct, and where can I get the splitter and BSF? And what exactly would the setup look like? (What is the diagram of the connections?) Does the CCK connect to the router via Ethernet? Where does the splitter go? Where does the band stop filter go? Will any of this adversely affect my HR20-700, which has a DECA connected to it? Thanks.