I have been dealing with this for months. I have contacted customer support and had the local sales man out to our office and even had a local networking company out but I continue to have problems. My network here works fine for days at a time but then for several days in a row we experience connectivity issues between my router and my modem. Rebooting the devices will not fix the problem. I have to unplug the LAN cable from the router and plug it directly into a computer. Once I do this it instantly connects to the internet and I can plug the router back in and it works fine. I have replaced the router with a different brand and even tried using a computer I installed ClearOS on to use for routing DHCP but the same thing happens every time. Does anyone have any suggestions?