Have a wnr834bv2 works fine 2-3days lights up no internet reset modem&router lasts a few hours wait a week does the same thing

Well, upgrade the firmware on the router using the below steps:

A. Open the router page using the following way:

1. Connect a computer to the router using any one of the 4 available ports.
2. Open a web browser (Internet Explorer, Mozilla Firefox or Safari).
3. Access the router, usually by typing 'http://192.168.1.1' or 'http://www.routerlogin.com' in the address bar.
4. Login to the router with the Username as "admin" and Password as "password" (please note that the Username and Password are case sensitive).

B. Visit the following link to download the latest firmware.

http://kb.netgear.com/app/answers/detail/a_id/860

C. Please follow the steps to upload the firmware of the router:

1. Open the router page using the steps mentioned above.
2. Under Maintenance, click router Upgrade.
3. Click Browse and locate the upgrade file.
4. Click Upload.
5. Wait for the router to reboot.
6. Click on 'Logout' (at the bottom of the list) from left menu.

I hope this information allows you to resolve this issue.

If I have helped you, please help me, and rate this suggestion the highest FixYa rating. If you cannot rate this post with the highest rating, then please comment to this post and I will try to help you further.

Regards
Anand