4 port wired routers can be had for around $50.00, sometimes less using rebates. Check CompUSA, Best Buy, Circuit City, Office Depot, ect. in your area or order from
www.newegg.com Good ones are Linksys, SMC, D-Link.
You might wait a few days and see if the problem will clear up I went thru that couple of years age when my ISP made some changes and my router kept locking up. It quit after couple of weeks.
Chas