Hello, For a week or so I bought a wifi router from my internet operator and since then,the wifi network says "no internet access". I called the internet provider and they said that it's from my computer and that everything is fine from the company's side. My laptop is a Dell inspiron 1525. I tried entering at Ipv4 connectivity the i.p. addresses from ipconfig and nds servers from several forums,but no result. I disabled homegroup,tried disabling windows firewall,updated the dell wlan driver,still nothing. What should I do?