I have a Linksys wireless G router, model # WAG54GS, it's positioned between 2 pc's and there about 15 feet away from the router, the signal is so low that sometimes they can't connect to the net, so i thought of boosting the signal. Can someone tell me if i were to get a high gain antenna model # HGA7T that it would be compatible for my router or should i just get a range expander model # WRE54G V2?