Known Issue(s) and Limitations:
- Ping IP address should be in the same subnet of remote traffic selector from both GUI ,and CLI
- [CLI] Device is accepting start ip address is larger than end IP address in IPv6 Address ,pool table
- Observed critical error when we click on trace route option, if ping though VPN tunnel is selected
- Device is not accepting mode config pool IPs for a specific range of addresses through CLI
- Device is not showing prefix length for IPv6 wan address in router status and wan setup page.
- Sometimes telnet session to the device is not accessible
- List of services of server group are not displaying in CLI show command.
- Device is not showing proper error message while performing ping and trace route when the selected ,local gate way wan is down
- 'PPPD' process got killed in backend observed after overnight test.
- ,Device is showing error "IP subnet conflicting with WAN1" while adding multi-homing ip address ,when WAN ISP type is PPPoE/PPTP
- Opened ports are getting closed when we make changes to other rules in Port Triggering page.
- Routes are exchanging with mismatching of both first key parameters and second key parameters.
- Device showing L2TP client MTU size as 1400.
- L2TP/PPTP client is not getting LAN side dns servers
- Not able to do netbios over L2TP tunnel.
- Functionality of reset button is not working in IPv6 WAN ISP Settings page
- Unable to login to the device gui after configuring custom portal as default
- ,Device is not showing prefix length for IPv6 wan address in router status and wan setup page.
- ,Can't add domain that "Authentication Type" is "WIKID-PAP" or "WIKID-CHAP"
Installation Instructions:
- Using the Download Link below, download and extract the new firmware to a convenient place such as your desktop. The filename after extracting is fvs336gv3_v4.3.1-14.img
Download Link: http://www.downloads.netgear.com/files/GDC/FVS336GV3/FVS336Gv3_V4.3.1-14.zip
Note: Reboot the firewall before begining the update process.
- Select Administration > Settings Backup and Firmware Upgrade from the main/submenu.
- In the Router Upgrade section, click Browse.
- Locate the downloaded file and click Upload.
This will start the software upgrade to your VPN firewall. This may take some time. Do not interrupt the upgrade process.
At the conclusion of the upgrade, your firewall will reboot.
Last Updated:10/17/2025
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Article ID: 25734