• Can I create a high-availability cluster with two different Synology NAS servers?

    It is always recommended to create a high-availability (HA) cluster with two identical Synology NAS servers. However, it is also possible to create a hybrid HA cluster using two similar Synology NAS servers as a temporary alternative before you acquire two identical Synology NAS servers. This article will cover the limitations of hybrid HA cluster. Synology NAS servers supportin…


  • Does Synology Product support HTTPS connection?

    Yes. For the detailed feature introduction, please visit this webpage.…


  • How do I change the display language of DSM?

    To change the display language of DSM, please follow the instructions below. For a user belonging to the administrators group: Log in to DSM using an account belonging to the administrators group. Go to Control Panel > Regional Options > Language. Under Display Language, sel…


  • How do I check the PID and VID of my USB device?

    All USB devices have a Vendor ID (VID) and Product ID (PID) which are used to distinguish it from other USB devices. Many USB devices (especially Wi-Fi and LTE dongles) are often revised or have regional variants while retaining the same model name. This means that chipsets and driver support may vary, and even though one revision of a model may work on your Synology NAS or Synology Rout…


  • How do I copy files along with their domain ACL privilege settings from a Windows server to my Synology NAS?

    To migrate/copy files and folders along with their ACL privilege settings from a Windows server to your Synology NAS, please follow the steps below: Make sure your Synology NAS and Windows server are joined to the same ADS domain. Refer to here…


  • How do I delete my Synology Account?

    If you do not wish to keep your Synology Account, you may delete it as follows: Go to the web-version Synology Account, and log in with your personal credentials. Go to Personal information. Find and follow the deletion guide on the bottom-left…


  • How do I find the suitable Synology NAS to run MailPlus?

    For every MailPlus supported model, you can find the following two parameters in the MailPlus section of its specifications page: Parameter Description Example (DS1815+) Recomm…


  • How do I log in if I forgot the admin password?

    You can reset the admin password by pressing the RESET button on your Synology product for about 4 seconds until you hear a beeping sound. This will restore IP, DNS and passwords for the "admin" account to default value, and reset the "guest" account to the "disabled" status. The default password of the "admin" account is blank.…


  • What is the width of my RackStation server?

    All Synology RackStation servers are designed to fit in a standard 19-inch server rack cabinet. Please refer to the illustrations and model groups below for the width of your Synolgoy RackStation and arrange cabinet space accordingly. 2U Chassis Group 1…


  • How do I recognize a hibernating Synology NAS via the LED indicators?

    A helpful and convenient way to tell whether your Synology products has entered hibernation is to observe the status of its LED indicators. The tables below list the LED indicators that are related to hibernation. For more information, see the Quick Installation Guide for your model.…


  • How do I register my extended warranty?

    Checklist You have purchased a Synology device bundle with the Extended Warranty license pack within the past 30 days. You have a Synology Account. Under Personal information the Country field is set to the place of purchase. You have the Exte…


  • How do I reserve my Synology DDNS hostname?

    If you have registered a Synology DDNS hostname for your Synology product, you can access it without remembering its IP address. However, the Synology DDNS hostname will be made available to other users if it is not used for more than 60 days. To reserve your Synology DDNS hostname, please do as follows according to the connection statuses. When your Synology product remains…


  • How do I unsubscribe from Synology eNews?

    Synology Account webpage: Log in to the web-version Synology Account. Go to Personal information > Subscription settings and deselect the unwanted options. Click Submit to finish unsubscription.…


  • How to add extra security to your Synology NAS

    Overview When you connect your Synology NAS to the Internet, there is a chance that hackers and viruses will attack your Synology NAS and try to gain unprivileged access of sensitive data. This article will give you tips and guide you through the best way to configure your Syn…


  • How to choose the right HDD for my Synology NAS

    With myriad hard drive classes and models available, selecting the right hard drive for a Synology NAS might feel like a daunting task. This article will explain some of the major differences between various hard drive classes available on the market, as well as what considerations are needed when selecting the right hard drive for Synology NAS. Currently there are four major har…


  • How to create a high-availability configuration with Synology NAS

    Overview In today's non-stop computing world, server malfunctions caused by component failure, human error, or system malfunctions might lead to service interruption and raise the cost of running your business. Therefore, uninterrupted availability is a critical goal to reduce costs and administration time.…


  • How to enable HTTPS and create a certificate signing request on your Synology NAS

    Overview In some situations, HTTPS (Hypertext Transfer Protocol Secure) can be used to encrypt and secure network communication between your Synology NAS and other devices, providing protection against eavesdropping or man-in-the-middle attacks. To secure network com…


  • How to enhance personal productivity with Note Station

    Overview Note Station is a versatile note-keeping application to boost your personal productivity in business and academics. Your notes can accommodate audio recordings, cross-note hyperlinks, and clipped texts/graphs from third-party sources, making your notes informative and resourceful. Moreover, with a click, you can turn your notes right into a stylish and smart presenta…


  • How to implement PXE with Synology NAS

    Overview Equipped with TFTP support and Synology's service, Synology NAS serves as an integral part of your Preboot Execution Environment (PXE) setup. With PXE, client devices can boot over the network using network bootstrap programs stored on your Synology NAS, instead of booting up with operating systems…


  • How to login to DSM with root permission via SSH/Telnet

    For system security reasons, root access to Synology NAS is limited. If you need to get the root permission, please log in to your DSM in the command line interface (e.g. PuTTY) with any account credentials belonging to the Administrators group, and then run the sudo -i…


  • How to make Synology NAS accessible over the Internet

    Overview When you're away from home or the office, you might wish to access your Synology NAS over the Internet. DSM includes options to easily set up remote access, allowing you to log in to DSM and other services by simply entering a custom domain name in a web browser. This article provides s…


  • How to map network drives from your Synology NAS

    Overview Synology NAS is designed to make storing and sharing files within your local network quick and simple, allowing you to directly access shared folders and files on the Synology NAS without going through the hassle of logging into DSM everytime. For example, you'll be able to store files to your Synology NAS with Windows Explorer just like other network devices.…


  • How to migrate Evernote notebooks to Note Station

    Overview Note Station is a well-rounded note-keeping application developed by Synology. You can migrate your Evernote notebooks to Note Station as the centralized platform, and enjoy easy organization and reference to your notes. This article will guide you through the process of importing notebooks from Evernote to Note Station. <…


  • How to migrate Synology Mail Server to MailPlus Server

    Overview Synology MailPlus Server provides a cost-effective mail server solution for small and medium businesses requring high level of security and stable performance. You can start enjoying the new features of MailPlus Server by migrating your previous Synology Mail Server to the new package powered by Synology. This tutorial will guide you through the migration of yo…


  • How to migrate between Synology NAS (DSM 5.0 and later)

    Overview When you purchase a new Synology NAS, your existing data can be moved from the old Synology NAS to the newly acquired one. This simple process is called "migration" but needs to be performed with care, so please read the instructions below to avoid any accidental data loss due to human error.…


  • How to migrate between Synology NAS (DSM 6.0 and later)

    Overview When you purchase a new Synology NAS, your existing data can be moved from the old Synology NAS to the newly acquired one. This simple process is called "migration" but needs to be performed with care, so please read the instructions below to avoid any accidental data loss due to human error.…


  • How to migrate emails from other mail servers to Synology MailPlus Server

    Overview With a built-in mail migrator, MailPlus Server helps you migrate emails from non-MailPlus email servers (e.g. Microsoft Exchange and IMAP mail servers) and third-party services (e.g. Gmail and Yahoo Mail) without complicated setup. This article will guide you through how to migrate emails from Microsoft Exchange to MailPlus Server for easy email centralization.…


  • How to reset your Synology NAS

    Overview Every Synology NAS server comes with a RESET button. There are two different reset modes: The first mode allows you to reset the administrator password and network settings; the second mode allows you to reinstall the operating system (this also resets the administrator password and n…


  • How to set up MailPlus Server on your Synology NAS

    Overview With the Synology MailPus Server package, your Synology NAS can become a mail system that supports SMTP, POP3, and IMAP. User accounts and email messages can be centrally managed and archived on your Synology NAS. In addition, the MailPlus package provides DSM users with an easy-to-use, browser-based email client for viewing, managing,…


  • How to use sMedio DTCP Move to transfer TV recordings to Synology NAS

    Overview sMedio DTCP Move is a DMS service package used to transfer recordings from your TV recorder to your Synology NAS. This package can also be used with sMedio TV Suite to watch recordings on your personal computer, mobile device or tablet. You can learn more about sMedio TV Su…


  • What is Synology DDNS Service?

    DDNS (Dynamic Domain Name Service) simplifies connecting to your Synology NAS over the Internet by mapping a hostname to its IP address. As a DDNS provider, Synology offers a variety of host addresses (such as *.synology.me, *.DiskStation.me, *.myDS.me, etc.) free to registered users with a Synology Account to apply to their NAS devices. On the DSM web interface, go to Control Pan…


  • What can I do if the STATUS LED keeps flashing in orange?

    The possible reasons that cause the STATUS LED to flash in orange are: No hard drives are installed (STATUS LED will flash in orange/green). DSM has not been installed. No volumes are created. The volume is in degraded mode. The volume has crashed. Please follow the steps below to fix this issue: If no hard d…


  • What can I do to fix slow SMB file transfers on OS X 10.11.5?

    For security enhancement, Mac OS X 10.11.5 will enable SMB client signing by default, thus impacting the transfer speed of SMB files. If you want to perform SMB file transfers over the LAN (we do not recommend you to perform SMB file transfers via the Internet for security purposes), please do the following to disable SMB client signing from the client end via /etc/nsmb.conf file:…


  • What can I do when I get the error message "Failed to format disk" when formatting data partition during the setup?

    Please follow the steps below to solve this problem: Turn off your Synology product. Remove the internal hard drive from your Synology product, and then connect it to a PC. (PC should be set to a fixed IP.) Right-click on My Computer and select Manage. Go to Disk Management, and then right-click on the hard drive you just co…


  • What is the RESET button on the Synology product for?

    The RESET button performs various functions on different models. Please refer to the following description according to the Synology product model. For models installed with DSM 2.2-0941 and onward The RESET button on the Synology product has the following functions. To restore the "admin" account to default value. To reset the UI man…


  • What is the difference between HDD Hibernation, System Hibernation, and Deep Sleep?

    HDD Hibernation, System Hibernation and Deep Sleep are types of energy-saving modes available on Synology NAS and Expansion Units. The table below provides details for each mode. To enable one of these hibernation modes, log into DSM and go to Main Menu > Control Panel > Hardware > Hibernation or HDD Hiber…


  • What is the username and default password for accessing my Synology Product via Telnet/SSH?

    For DSM 5.2 and earlier: The login account name is: root. The password is the same as that of the admin. You cannot leave the password field blank. For DSM 6.0 and above: Please refer to this tutorial for detailed steps.…


  • What kind of CPU does my Synology NAS have?

    #nas_cpu_table { width: 100%; } #nas_cpu_table td[colspan] { border: none; padding-top: 2em; } x17 Series System Model CPU Model Cores Threads FPU Package Arch…


  • What network ports are used by Synology services?

    Please refer to the following list: Setup Utilities TypePort NumberProtocol Synology Assistant9999, 9998, 9…


  • What should I do if file transfers are slow?

    If you discover that the file transfer speed between your computer and Synology NAS is significantly slower than the figures on our performance tests, please check out the suggestions below to find the cause of the problem: Make sure the connection between your Synology NAS and computer is Gigabit:…


  • What should I do when the message "No shared folder available to sync" appears on Cloud Station Drive?

    If the message "No shared folder available to sync" appears when you are trying to sync your shared folders on Cloud Station Drive, please follow the steps below to enable the folders you want to sync: Go to Cloud Station Server > Settings > Sync Settings.…


  • What stops my Synology NAS from entering Hibernation?

    There are three possible power-saving modes: HDD Hibernation, HDD Deep Sleep, and System Hibernation. Depending on the model and packages installed, your Synology NAS may be able to utilize HDD Deep Sleep and System Hibernation. The following flow chart illustrates the mechanism of entering advanced hibernation modes.…


  • What tools can I use to replicate data on my Synology NAS?

    Synology provides a variety of data replication tools for different scenarios, including File Station, Cloud Station ShareSync, Shared Folder Sync, and Snapshot Replication. Users can select the suitable one to meet their needs. Data replication File Station (manual) With File Station, you can manually drag and drop files and folders between two Synology NAS ser…


  • What type of fan speed modes are available on my Synology NAS?

    There are four fan speed modes available on your Synology NAS. You can choose the one you prefer at Control Panel > Hardware & Power > General > Fan Speed Mode. Full-Speed Mode: Fan operates at full speed, keeping the system cooler, but producing more noise. Cool Mode…


  • What is the RAID implementation for Btrfs File System on Synology NAS?

    To secure stored data, Synology has verified Btrfs File System in the way that has been confirmed to be the most stable for business use. Some concerns have been raised in regards to systems with Btrfs RAID potentially encountering issues with parity calculation errors, resulting in unrecoverable data loss. You can read about it…


  • What websites does Synology NAS connect to when running services or updating software?

    In order to increase service stability, Synology has set up various websites to offer services to your Synology NAS. When running services or performing software/package updates, your Synology NAS will need to connect to the corresponding websites. In organization or business environment where external network access is restricted, please make sure you add the IP address to the firewall…


  • Which 2.5" Disk Holder should I use to install a 2.5" hard drive?

    Please choose the correct 2.5" Disk Holder type according to DiskStation model: Type Applied Models Type A DS109+, DS109, DS109j Type B…


  • Which Synology DiskStation/RackStation supports Seagate IronWolf Health Management?

    Seagate IronWolf Health Management (IHM) is a feature integrated in Synology DSM, allowing you to monitor the health status of the Seagate IronWolf™ and IronWolf Pro drives installed in Synology NAS. Seagate IHM monitors drive health status, provides suggested actions, and offers a higher accuracy in predicting drive failure. IHM is supported on specific Synology NAS models and on specif…


  • Which Synology NAS models support WOL (Wake on LAN)?

    Most Synology NAS models support power recovery or Wake on LAN (WOL). Please see the table below for the models that do not support the power recovery or WOL feature. Support for Wake on WAN requires switches or routers which recognize the Magic Packet. Once WOL has been enabled, the Synology NAS server can be powered-on over the local area network or the Internet by using a WOL…


  • Why am I asked to enter user credentials at every access to my Synology NAS?

    Under the Windows environment, the guest account is used by default for connection with your Synology NAS. To avoid automatic login as guest, you can create an account on your Synology NAS exactly the same with the account on your Windows PC. To find out the account you are using on the Windows PC, follow the instructions below. Click the Start button on the lower-left of…


  • Why am I unable to install my Synology NAS and why is my power LED is flashing constantly?

    If you are unable to complete the installation of your Synology NAS because of some error message, or if the power LED is flashing constantly, then please follow the steps below to check the motherboard of your Synology NAS: Power off the Synology NAS. Remove all attached external devices. Remove the internal drive(s). Power on the Synology NAS…


  • Why are Skype and MSN push notifications no longer supported in DSM?

    Due to discontinued support from the official developer, the push services for MSN and Skype were scheduled to be removed from DSM in July, 2014. Please see the following details for the official termination of MSN and SkypeKit support: The official support of MSN messenger was officially discontinued in all regions except China in March, 2013, by its service p…


  • Why are the LED indicators on the LAN ports of my Synology NAS not working?

    Some Synology NAS servers come with LED indicators on LAN port(s) to show network activity. For models without LED indicators on LAN port(s), you can check their network activity from the LAN LED indicator(s) on the front panel of your Synology NAS. Please refer to the Quick Installation Guide of your Synology NAS for the exact location and definitions of the LED indicators. The t…


  • Why can't I browse local files in File Station after updating to Google Chrome version 42 and onward?

    Browsing local files in File Station using your web browser relies on Java. However, starting with Chrome version 42, the Google browser blocks Java by default unless you choose to allow it to run. To run Java in Chrome version 42 and onward, please follow the steps below: In your URL bar, enter: chrome://flags/#enable-npapi Click the E…


  • Why can't I connect to my Synology NAS over the Internet via QuickConnect?

    For DSM 5.0 or later, please go to Control Panel > QuickConnect and ensure Enable QuickConnect is checked. Then confirm the applications and services you would like to use are enabled in Advanced. If the services have been properly enabled yet QuickConnect is still not working, you can try the following methods to troubleshoot this problem:…


  • Why can't I connect to my Synology NAS over the Internet via Synology DDNS?

    Please go to Control Panel > External Access > DDNS (for DSM 5.0 and later) or Control Panel > DDNS (for DSM 4.3 and earlier) and ensure Synology DDNS appears in the list of service providers. In some situations, the external IP address of your Synology NAS may be out-of-date so you need to log in to DSM via local network, and click Upda…


  • Why can't I delete files or folders on the Synology product?

    This usually occurs on Windows platforms. The possible reasons are: The files or folders were created on Mac platforms using illegal characters which cannot be handled properly on Windows, such as a forward slash(/), a colon(:), a dot(.), and space. The files or the folders are being accessed by other users. To solve this issue, delete files or folde…


  • Why can't I use HTTP to configure browser push notifications?

    To use push notification via Chrome extension, please note the following: To open the notification message, you must enable HTTPS connection. To receive notifications after the browser is closed, you need to tick Continue running background apps when Google Chrome is closed.…


  • Why can't I use Hyper-V over SMB3 to perform Windows Backup on my Synology NAS?

    The following explains the issues related to using Hyper-V over SMB3 to perform Windows Backup: DSM now supports Windows 8.x versions to perform backups via SMB3. Please upgrade your Windows security software to the latest version if backup errors occur. Windows Hyper-V is now supported on DSM to export virtual machine images, but is not supported to directly run DS…


  • Why can't I use Storage Manager to run S.M.A.R.T. test on my SSDs?

    S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitoring system for hard drives to detect and report on various indicators of reliability to anticipate drive failures. Although an industry standard exists among most major hard drive manufacturers, not all manufacturers are willing to share the details of their hard drive designs due to proprietary concerns. Th…


  • Why do I always log into my Synology NAS as "guest" automatically?

    There are two cases that may trigger this situation: The "guest" account is enabled. The password for the guest account is empty. To resolve the problem, go to Control Panel > User and adopt one of the solutions below: Disable the guest account. Set a password for the guest account. Cre…


  • Why do I get redirected to "http://server-IP:5000" when trying to access Web Station?

    If you are redirected to "http://server-IP:5000" when you try to access Web Station at "http://server-IP/", one possible reason is that Web Station has not been enabled yet. To enable Web Station, go to Main Menu > Package Center > Installed > Web Station and click Run from the Action drop-down menu.…


  • Why does Security Advisor inform me of modified system files?

    Security Advisor is responsible for a well-rounded checkup on the system settings of DSM to secure your Synology NAS. When you receive this message from Security Advisor, one of the possibilities is that you may have installed/executed uncertified third-party packages in your Synology NAS. Using such packages may have the system files of DSM modified and thus render your Synology NAS vul…


  • Why isn't the Synology Product running in true Gigabit speed?

    Even though the Gigabit speed "in theory" is 1000Mb/s (125MB/s), no one can really get that fast in reality. The real network speed also depends on other hardware components on the network, such as CPU, HDD, switch, etc. We have run some tests on the Synology Product and the results show that users do get faster speed with Gigabit on the download. For detailed information, please refer t…


  • Why was my credit card declined?

    Synology relies on a trusted third party payment processor to verify the validity of your payment information. Please ensure that all the information you have inputted is correct. If payment still fails, check with your bank if the transaction was blocked due to any of the following: Suspicious purchases detected (mostly due to overseas transactions). Credit limi…