Vigor3910 Quad-Core Powerful Enterprise Gateway
Product Information
The Vigor3910 Series is a router that offers advanced features
and security options. The firmware version 4.3.2.1 includes various
improvements, bug fixes, and new features.
New Features:
- Support for automatic daylight saving time
- Session-Based and IP-Based modes options for Routing >>
Route Policy
Improvements:
- Support for up to 31 characters for IP Bind Mac comment
- Fix for buffer & socket leakage issue in OpenVPN
- Improved IPv6 throughput for subnets other than LAN1
- Fix for frequent WAN (static IP) reconnects in HA hot standby
mode - Fix for router rebooting issue when APM sent the profile to AP
frequently - Fix for DHCP WAN frequent disconnection with a specific
ISP - Fix for missing WAN IP Alias interface selection in Service
Status Setup page - Fix for failure to dial-up NordVPN cloud server via OpenVPN
LAN-to-LAN - Fix for HotSpot Web Portal profiles’ settings disappearing
after router reboot - Fix for NAT loopback traffic being blocked wrongly when
Firewall Default Rule was set to Block - Fix for Vigor Router’s local service being blocked wrongly when
Firewall Default Rule was set to Block - Fix for USB thermometer(TEMPer1F_V3.4) not being detected
correctly when the router rebooted - Fix for Let’s Encrypt – Certificate Auto Renew failure
(certificate domain did not match router domain) - Fix for failure to access Vigor router via HTTP/HTTPS from LAN
and WAN due to buffer & socket leakage
Known Issue:
- The web portal may cause the router to be too busy to respond
quickly - The encryption method for OpenVPN will be factory defaulted if
firmware upgrading is performed from v3.9.7 to v4.3.1 or above - When the firmware is downgrading via System Maintenance
>> Firmware Upgrade, RD NO: 111_11_17
Product Usage Instructions
Before using the Vigor3910 router, it is recommended to change
the passwords for admin login and password/PSKs for VPN profiles if
you have upgraded to the latest firmware from 3.9.6.2 or earlier
due to a WebGUI security issue.
To enable daylight saving time, go to the router’s settings and
select the option for automatic daylight saving time.
For Routing >> Route Policy, you now have the options for
Session-Based and IP-Based modes.
For IP Bind Mac comment, you can now use up to 31
characters.
If you were experiencing issues with OpenVPN, such as buffer
& socket leakage or low IPv6 throughput for subnets other than
LAN1, these issues have been corrected in the latest firmware.
If you were encountering frequent disconnections or other issues
with WAN (static IP), DHCP WAN, or Let’s Encrypt – Certificate Auto
Renew, these issues have also been fixed.
For any other known issues or further assistance, please refer
to the user manual or contact customer support.
Release Note for Vigor3910 Series
Firmware Version: Release Type: Applied Models:
4.3.2.1 Normal Vigor3910
Read First
Due to the WebGUI security issue (fixed in 3.9.6.3), we recommend changing the passwords for admin login and password/PSKs for VPN profiles after upgrading the latest firmware from 3.9.6.2 or earlier.
New Features
Support daylight saving time enabled automatically. Support the “Session-Based” and “IP-Based” modes options for Routing >> Route Policy.
Improvement
Improved: Support up to 31 characters for “IP Bind Mac” comment. Corrected: An issue with the buffer & socket leakage in OpenVPN. Corrected: An issue with low IPv6 throughput for subnets other than LAN1. Corrected: An issue where WAN (static IP) reconnects often in HA hot standby mode. Corrected: An issue where the router reboots when APM sent the profile to AP frequently. Corrected: An issue with a DHCP WAN frequent disconnection with a specific ISP,
Thüringer Netkom. Corrected: An issue with sending authentication code via SMS with 2FA for VPN not
working. Corrected: An issue with missing WAN IP Alias interface selection in Service Status
Setup page. Corrected: An issue with failure to dial-up NordVPN cloud server via OpenVPN
LAN-to-LAN. Corrected: An issue with the HotSpot Web Portal profiles’ settings were gone after the
router rebooted. Corrected: An issue of NAT loopback traffic was blocked wrongly when Firewall Default
Rule was set to Block. Corrected: An issue of Vigor Router’s local service was blocked wrongly when Firewall
Default Rule was set to Block. Corrected: An issue with the USB thermometer(TEMPer1F_V3.4) was not detected
correctly when the router rebooted. Corrected: An issue with Let’s Encrypt – Certificate Auto Renew failure (certificate
domain did not match router domain).
1
Corrected: An issue with failure to accessing Vigor router via HTTP/HTTPS from LAN and WAN due to buffer & socket leakage.
Known Issue
The web portal may cause the router to be too busy to respond quickly. The encryption method for OpenVPN will be factory defaulted if firmware upgrading is
performed from v3.9.7 to v4.3.1 or above. When the firmware is downgrading via “System Maintenance >> Firmware Upgrade”,
one might have a chance to experience a config compatibility error, which causes the config of a certain function to return to the default setting. To avoid this error, “System Maintenance >> Configuration Export >> Restore Firmware with config” is the preferred way for firmware “downgrading”. We suggest backup the config file before upgrading any firmware as well. To prevent potential errors when upgrading firmware, it is recommended to upgrade firmware sequentially one version at a time. (e.g., if the current firmware is 3.9.1, upgrade to 3.9.2 then 3.9.7.2, and last 4.3.2).
RD NO: 111_11_17
2
