your power level is alittle low not enough to cause any problems... I know for a fact that wireless slows down speeds... but the issue with the router not getting a ip address is easy to fix, first you should hard wire your puter to the cable modem make it give you a ip you should be able to getonline that way, then once you have done that get the mac address of the pc that you had pluged in to the modem, clone that same mac into your router... Plug the router into the modem after it is cloned, make sure modem says on... That should work has for me in the past...