1. "land line" is generally accepted as a phone line. The type you plug your phone into or a modem. I bet you meant to write "Ethernet cable."
2. Try your laptop at some free hotspot and report what happens.
In closing, my neighbor had a similar event. Even though he didn't change a thing more wifi routers in the neighborhood meant we had to not only change channels but update the firmware in the router. It's fine now.
hello my friend has a compaq presario with win xp 9 months old. It was working fine until last week. laptop runs fine but wont connect to internet. The internet icon in the bottom right tray shows connected at 54 mps excellant. But when you try and connect to internet explorer it says no connection. I plugged in the land line fron the linksys routter direct to the laptop and no problems. works fine. tried rebooting computer,laptop,router in all possible sequences and same result. Im assuming since the networking icon shows excellant connection its not the laptop. like i said it was working until a week ago..........lost internet for 2 days...got it back but not on the laptop. he has a som that brings his school laptop home and that connects to the internet fine. shyt off firewalls just in case but no diff. help?