We just got a wired internet connection set up in the house. We had a linksys router and tried to connect it to the modem. We can get on the internet through the wire, but when we try to connect wirelessly, it's not working. It askes us for the password, but we don't know if we have one. If we connect without the password, there is limited or no connectivity. We called linksys and they told us to go to http://192.168.1.1/, but the usual password (admin) did not work. We tried a whole bunch of other combinations that were recommended, but nothing works. How can we fix this problem and get connected wirelessly?