We just got a Cisco 891F router and I am having trouble accessing it on the Ethernet so that I can configure it. I had configured our previous Cisco 820 router and I was able to access it initially be setting my Ethernet adapter to 10.10.10.2 and then I was able to access the router through 10.10.10.1 to configure it. This does not seem to work with the 891F. I do not have a com port on any of our PCs to attach the console cable and I do not have a USB to Serial adapter. I have tried resetting it to factory(press reset within 5 seconds of powering on) but that did not work. Since this is brand new, I guess I can call cisco, but I wanted to see if anyone had an idea here.