Bug Fixes:
[DNS Flood] In some condition, the router would be triggered to send lots of DNS queries to the DNS server.
To Upgrade
Note: Do not upgrade the firmware using a wireless connection. Please perform firmware upgrade with “wired” or Ethernet connection only.
Write down all the settings which you changed from the default
ues, since you may need to reenter them manually.
Download using the button below to a convenient place such as your desktop.
Log in to the router using a Web broswer. The URL is
http://www.routerlogin.net.
Click Maintenance > Router Upgrade
Click Browse and find the file you just downloaded.
Click Upload. Do not interrupt the upgrade while the router does this step.
Important Note: The upgrade process is completed when the on screen progress bar completes. If power LED light turns amber and blinking, power cycle the router to complete the upgrade.
http://ftp.ufanet.ru/pub/firmware/Netgear/WNR3500Lv1/
https://moonback.ru/page/wnr3500l-firmware