Frequently Asked Question
Guide: Synology Administrator Training
- Introduction Synology
- Login to NAS Web interface
- Introduction Synology DSM Web interface
- System Notification
- System log
- System Security
- How to Update Firmware
- Introduction Storage manager
- Volume Degraded
Storage: How to repair a Volume or Disk Group?
- Volume Degraded
- How to create/modify User
- How to create/modify User Group
- How to create/modify Shared Folder
Synology | Creating a User Account and Shared Folder - How to access the file from PC
- How to access file with mobile
- How to access file with web Interface
- Share file link with File Station & file request
Synology | Adding and Sharing Files on Your Synology NAS
- Share file link with File Station & file request
- Introduction QuickConnect & External Access
- How to access the file remotely
Synology | Set Up Anywhere Access with QuickConnect - How to access the file with mobile applications
- How to access the file remotely
- Introduction VPN
- Introduction Cloud Station Server
- Backup & Restore: How to use Cloud Station to backup my PC folder? (For Windows users)
- How to Synchronize files on my Computers & NAS
Synology | Back Up and Sync Your Computer with Cloud Station
- Backup method
- Snapshot Replication
- Hyper Backup
- Time Machine Backup
- Reboot NAS
- Introduction ACE’s support
- Email: support@aceperipherals.com
- Support Portal & Knowledgebase: http://support.aceperipherals.com
- Phone: +65 61007000
- Business Hour: 9am to 6pm
- Youtube: the relevant support resource (ask our Support Specialist)
Updated 181213
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- How do I sign in to DS file on Android and transfer files securely?
- How do I access a Synology NAS remotely without exposing unnecessary services?
- Hyper Backup reports insufficient destination quota even though the remote NAS has free space. What should I check?
- DSM says there is insufficient system capacity for an update, but my volume has free space. Why?
- Universal Search is using a lot of Synology CPU. How do I check whether indexing is responsible?
- Synology SMB3 Multichannel is enabled but file copies still use one network link. What should I check?
- Why can I not delete a file or shared folder protected by Synology WriteOnce?
- How do I enable Synology NFS access and fix a mount or permission failure?
- How do I set Synology shared-folder permissions and resolve an unexpected Access Denied?
- How do I find a USB device's VID and PID before checking Synology compatibility?
- Reset a Synology NAS: Mode 1 login recovery vs Mode 2 DSM reinstall
- How to submit a Synology support request from DSM
- Synology SHR vs RAID: fault tolerance, mixed drives and expansion
- Synology MailPlus Server setup: DNS, mailboxes and delivery checks
- Synology FTP, FTPS and SFTP setup and connection checks
- Windows error 1219 appears when I map a second Synology share. How can I reconnect?
- DSM rejects the correct six-digit verification code. Could the time be wrong?
- How do I reconnect Hyper Backup to an existing .hbk backup without starting a new archive?
- Active Backup for Business recovery media cannot see my SSD or network adapter. What should I do?
- Can I move the drives from a failed Synology NAS into a replacement model?
- My HEVC videos upload to Synology Photos but will not play in the browser. How do I fix this?
- Why is Delete unavailable for an immutable Synology snapshot?
- DSM says Test mail failed to send. How do I restore email notifications?
- Synology Drive file versions use far more space than my documents. How do I reduce them safely?
- A Synology Drive file is locked or read-only. Who can unlock it?
- Hyper Backup cannot connect to its destination even though the remote NAS opens in a browser. What should I check?
- Why does Synology Drive keep creating conflict copies of my documents?
- My Synology NAS will not power on. How can I check the power supply safely?
- Why does Synology Active Backup for Business show my PC as offline when it is switched on?
- Why does deleting a Synology Hyper Backup version free less space than expected?
- DS cam shows recordings but sends no motion notifications. What should I check?
- Why is a person missing from the People album in Synology Photos?
- How do I arrange Synology warranty service through ACE and prepare a vendor case?
- Why does Secure SignIn fail to connect after I scan the Approve sign-in QR code?
- Why do my H.265 cameras still record but show a black screen or unsupported-format message on one computer?
- Why can I not add my existing Surveillance Station camera licence to a replacement NAS?
- Why can I watch a Surveillance Station camera live but not find the expected recordings?
- Why does a Surveillance Station camera keep disconnecting while the NAS remains online?
- Why does my Container Manager app stop with permission denied for a mapped folder?
- How do I troubleshoot Active Backup for Business error 0x80042301 on a Windows computer?
- Why is Hyper Backup skipping backups with a timeout waiting for integrity check message?
- Why does Synology Photos stop backing up when my phone screen locks?
- Why can I see Synology Drive files but not open them when I am offline?
- Why can Windows 11 24H2 no longer open my Synology shared folders?
- Why is my Synology volume still full after I delete files?
- Why did my Synology storage pool grow but my volume stay the same size?
- How do I fix a Synology Drive SSL certificate warning without losing my sync tasks?
- Why are photos missing or showing blank thumbnails in Synology Photos?
- Why is Synology QuickConnect slow when my local NAS connection is fast?
- Can I use third-party hard drives in a 2025 Synology DiskStation Plus running DSM 7.3?
- Why does Synology Drive say up to date when some files are missing?
- Resolving Synology NAS Resource Monitor Issues
- How to Enhance the Security of Your Synology NAS
- Swapping Hard Drive Bay Placement in Synology NAS
- NVR: How to enable GPU acceleration on Surveillance Station Client
- NVR: Is Surveillance Station web player compatible with my browser and client operating system?
- White Paper: CMS Failover in Surveillance Station 8.0.0 and above
- General: How to retrieve Synology System Log?
- DS file (iOS)
- What can I do to enhance the wireless transfer performance of my Synology Router?
- General: What can I do to fix slow SMB file transfers on OS X 10.11.5?
- General: Why can't I use Hyper-V over SMB3 to perform Windows Backup on my Synology NAS?
- General: Why can't I use HTTP to configure browser push notifications?
- Storage: How do I enable file self-healing on DSM?
- File Sharing: How to create a Shared Folder?
- NVR: Which Surveillance Station features are currently not available on NVR216 Local Display, VS360HD, and Surveillance Station Client?
- NVR: How do I choose the right PC for Surveillance Station Live View?
- General: Upgrading DS1815+ RAM
- Backup: How to back up your Synology NAS
- NVR: How to make an attempt to install an unsupported IP camera in Surveillance Station? (New)
- Network: Synology Set up OpenVPN on Windows
- File Sharing: Store files to Synology NAS from a Mac computer within the local network
- Network: Synology Set up OpenVPN on Mac
- White Paper: Synology High Availability (SHA) - Shared Storage
- General: Not able to access to Synology NAS
- General: How to change Synology NAS admin & user password?
- Backup & Restore: How to use Cloud Station to backup my PC folder? (For Windows users)
- NVR: How to export IP camera configuration on Synology Surveillance Station?
- Backup & Restore: What backup tasks are monitored by Hyper Backup Vault?
- General: How do I find the suitable Synology NAS to run MailPlus?
- File Sharing: How to map network drives from your Synology NAS Using Synology Assistant?
- NVR: How to operate the fisheye dewarping feature in Surveillance Station?
- Storage: SSD Cache*
- General: How to migrate Evernote notebooks to Note Station?
- Storage: RAID Scrubbing*
- General: Why does my Synology NAS have a single volume size limitation of 16TB?
- Virtualization: Configuring iSCSI port binding with multiple NICs in one vSwitch for VMware ESXi 5.x and 6.0.x
- Virtualization: Considerations for using software iSCSI port binding in ESX/ESXi (2038869)
- NVR: How to customize the transport protocol for my IP camera?
- NVR: How to make an attempt to install an unsupported IP camera in Surveillance Station?
- Multimedia: Can my Synology NAS transcode 4K videos for my device?
- Installation: How do I install an SSD into my Synology NAS for the best SSD cache performance?
- Storage: Which file system should I use to create a volume?
- Virtualization: How to Use Port Binding to Configure Multipathing on VMware for Synology NAS?
- General: Which Synology NAS models support WOL (Wake on LAN)?
- Application: How to connect to Synology's VPN Server using a Windows PC or Mac?
- Backup & Restore: How to retrieve backup files with Hyper Backup Explorer (Windows/Mac/Linux)?
- Cloud Service: How to back up the data in my Google Drive with Synology?
- General: How to fix if my Windows cannot access shared folder?
- General: What is the width of my RackStation server?
- Multimedia: How to embed Photo Station to WordPress, Joomla, Drupal, and other websites?
- Virtualization: How to use iSCSI Targets on Mac computers?
- Storage: How to create a Volume?
- General: What stops my Synology NAS from entering System Hibernation?
- General: How to migrate emails from other mail servers to Synology MailPlus Server?
- General: How to login to DSM with root permission via SSH/Telnet?
- General: How to migrate Synology Mail Server to MailPlus Server?
- Network: LAN/Internet
- Application: Application Portal
- General: What type of fan speed modes are available on my Synology NAS?
- General: Can I create a high-availability cluster with two different Synology NAS servers?
- Storage: How to repair a Volume or Disk Group?
- Application: How to create and manage your to-do list with Note Station?
- Application: How to install and use the Google Chrome App for Note Station?
- General: Why does Security Advisor inform me of modified system files?
- Storage: Which models have limited support to Synology Hybrid RAID (SHR)?
- SRM: How come the "Oops! Website blocked!" page does not pop up even when a website has been blocked by my custom Web-filter?
- Cloud Service: How to back up the data on your Synology NAS to the public cloud?
- Application: How to install applications with Package Center?
- Virtualization: How to Use iSCSI Targets on VMware ESXi Server with Multipath Support?
- General: What is Synology DDNS Service?
- General: What kind of CPU does my Synology NAS have?
- Application: How to set up VPN Server in Synology NAS?
- File Sharing: Store files to Synology NAS from a Windows PC within the local network
- White Paper: Synology High Availability (SHA)
- Multimedia: Can my Synology NAS transcode videos for my device?
- Storage: Does the eSATA port of Synology products support eSATA disk enclosures with port multipliers?
- Backup & Restore: What backup software does my Synology NAS support?
- Storage: Which Synology DiskStation/RackStation can I use with Synology Expansion Units?
- SRM: Can Synology Router RT1900ac works with Singtel Mio TV?
- File Sharing: How can I use File Station to access files on my Mac computer?
- NVR: What joystick does Synology Surveillance Station support?
- Application: What is Synology Cloud Sync Decryption Tool?
- Storage: How to increase Synology Storage Raid rebuild speed?
- General: Why are the LED indicators on the LAN ports of my Synology NAS not working?
- Network: How to register Synology DNS server IP with Singtel Aztech Router?
- NVR: Why is Surveillance Station plugin deactivated after the installation? (NPAPI issue for Google Chrome version 44 and older)
- NVR: How do I install Surveillance Station plugin on Internet Explorer to enable Surveillance Station Live View?
- General: Unable to map network drive - System Error 67
- Storage: Choose a RAID Type
- White Paper: Synology QuickConnect
- Backup & Restore: How to use Cloud Station to sync files between Synology NAS and Windows computers
- General: What can I do if the STATUS LED keeps flashing in orange?
- NVR: How to add camera to Synology Surveillance Station?
- General: How to create a high-availability configuration with Synology NAS?
- General: Why are Skype and MSN push notifications no longer supported in DSM?
- Application: How to join the Synology NAS to the LDAP directory service
- Storage: How can I recover data from my DiskStation using a PC?
- General: How to choose the right HDD for my Synology NAS?
- General: What is the RESET button on the Synology product for?
- General: What USB3.0 external storage devices are supported by Synology NAS?
- General: What network ports are used by Synology services?
- General: What UPS (Uninterruptible Power Supply) devices do Synology product support?