Hello., I have a DLink router model DIR-300 and I need to set a password for the WIFI. I have the following set up at home. - The cable of the service provider goes from the modem to the DLink router - From the Dlink router I have connected 1 PC and the other PC uses the WIFI How I do set up the password, thus no other users can use my signal. I have read the manual but sine I am not an expert is very hard to understand what I have to do thanks Francisco