Firmware Update: Synology DSM 6.2.3 build 25426-3

Synology has released an update for Disk Station Manager version 6.2.3. Synology DSM is the management software that runs on several of the company’s NAS products. The Disk and Rack Stations offer more than just extra storage space. For example, backups of all clients on the network can be made and files can be downloaded via http, ftp, bittorrent, usenet and emule, so that, for example, energy-hungry PCs can switch off at night while the download just comes in. Furthermore, audio and video files can be streamed over the network via the built-in iTunes server, a dynamic website can be hosted using PHP and MySQL and it can act as a print server.

To be able to install version 6.2.3, at least version 6.0 must be present. Furthermore, it is only suitable for the NAS models whose type number ends with 11 or higher. For the other conditions and the different downloads, look at this page. Few changes that are important to home users have been made in version 6.2. The necessary changes and improvements have been made for the heavier models and the NAS that are used in business environments. The changelog for this release looks like this:

Important Note

• Your Synology NAS may not notify you of this DSM update because of the following reasons. If you want to update your DSM to this version now, please click here to manually update it. Only Synology NAS with DSM 6.2.3 installed can be updated to this version.
  • The update is not available in your region yet. The update is expected to be available for all regions within the next few days, although the time of release in each region may vary slightly.
• This update will restart your Synology NAS.

Compatibility & Installation

• Photo Station must be updated to version 6.8.14-3501 or above to be compatible with this update.

What’s New

• Enhanced NFSv4 connection stability.
• Increased the maximum number of IP camera channels on FS6400 to 150.

Fixed Issues

• Fixed an issue where support ticket submissions might fail in a certain version of Google Chrome.
• Fixed an issue where Windows 10, version 2004 virtual machines might fail to power on when users select UEFI as the firmware.
• Fixed an issue where there might be network disconnections on Virtual DSM.
• Enhanced the stability of SSD caches when multiple processes are accessing the same cache at the same time.
• Fixed an issue where CMS managed servers might not connect to the CMS host after they restarted.
• Fixed an issue where disks in Resource Monitor performance charts were not displayed in the correct sequence. Affected models include:
  • 21 series: DS1621+
  • 20 Series: FS6400, DS1520+, DS920+, DS720+, DS420+, DS220+
• Fixed an issue where when users access files on DSM using Windows software via SMB, system performance might be affected. This is because of Windows software’s continuous attempts to access the shared folders to which it has no permissions.
• Fixed an issue where Windows File Explorer might not update file deletion or removal in real time when folders are mounted via SMB.
• Fixed an issue where the system might not report the power status correctly on SA3200D.
• Fixed an issue where the setting pages after first-time DSM installation might not launch on Synology NAS models with multiple LAN ports.
• Fixed an issue where users were not able to empty the recycle bin of the “usbshare” shared folder.
• Fixed an issue where administrators were not able to change the “User must change password at next logon” setting via Windows RSAT.
• Fixed an issue where domain users could not be added to built-in groups via Windows RSAT.
• Fixed an issue where enabling the “Collect debug logs” option for SMB might result in excessive system space usage.
• Fixed an issue where the system might send incorrect port forwarding notifications after a restart.
• Fixed an issue where SHA-1 certificates might disappear when users click “Upgrade certificate”.
• Fixed an issue where DSM might block users’ IP addresses and create excessive logs when they tried to sign in after re-installing DSM.
• Fixed an issue where incorrect drive compatibility information was displayed after drive migration.
• Enhanced the stability of network interface cards on certain models.
• Fixed an issue where links in password reset emails did not work when the URLs exceed the maximum length.
• Fixed an issue where packages did not update automatically due to dependency problems.
• Enhanced SAS controller stability during system shutdowns.
• Fixed multiple security vulnerabilities. (Synology-SA-20:26)
• Supports Let’s Encrypt ISRG certificates.