My Equipment: Synology DS1813+ | Panasonic TH-L42ET60A & TH-55DX600U | Windows 10 Professional 64Bit PC's | Raspberry Pi 2's & Odroid C2 with OpenPHT
FAQs - READ THIS FIRST!!!!
Welcome to the Plex Synology FAQs page.
This post will try and answer some common questions.
First of all, we urge you to look @ the NAS Guide page
If English is not your native language, then try Google Translate: Copy the URL for this page into Google Translate in order to see the page in your native language.
For those having issues with your Plex Pass subscription, please contact Plex at
Q0: Posting in the Synology Forum.
Note: When making a post in this forum, please provide as much information about your issue as possible and include the following details:
- Version of Plex you are using
- Version of DSM you are using
- NAS Model number. EG: DS216Play
Also include your Plex logs if you think they will help
If Plex is accessible, then you may grab the logs by going to settings->server->help and click on the download logs button.
If Plex is not accessible, then open File Station and navigate to: Plex/Library/Application Support/Plex Media Server/Logs/
See Q7a if the Plex folder is not visible in File Station.
Please copy ALL of the .log files into a .zip archive (including those in the PMS Plugin Logs folder) and then attach that .zip file to your forum post.
Also, if you want an easy way to read and gather the logs, install the WebTools 2.x plugin and use the excellent Log Viewer that has full download and zip capabilities. It was written by @dane22 & @dagalufh, both valued members of the Plex forums.
It has a lot of other useful features like the Unsupported App Store and Subtitle Management and is compatible with PMS on any platform.
Q1: I installed the latest version...?
If you installed Plex from the Package Center then most likely, you do not have the latest version. The package center is maintained by Synology and is always a few versions behind.
We suggest you visit http://plex.tv/download instead. See Q3 for details about installing the .spk package manually.
Q2: Which version do I need, Intel or ARM?
It all depends on the processor that your Synology NAS is running. If it has an Intel processor, then go for the Intel package, if it has an ARM processor, go for the ARM package.
If you have an Intel processor that supports 64bit instructions, then grab the Intel 64bit Plex package.
You will need to refer to your NAS's documentation for the type of CPU it has or check DSM Control Panel->Info Center and then check the Intel website to see if your CPU supports 64bit instructions.
See also: What kind of CPU does my NAS have?
Note: ARMv5 and PPC powered NAS are no longer supported by Plex since version 0.9.17.x, only Intel and ARMv7 are supported from here on.
Q3: How do I install a downloaded .SPK package from Plex?
First, visit the Plex Downloads page and download the latest version of Plex for your NAS. Always click on 'Public Downloads' first, unless you have a Plex Pass, in which case you would click on Plex Pass first.
Note: that Chrome and Safari have been known to not complete the download correctly, so try another browser if you are having any problems installing Plex after downloading it from the website.
Then, follow this guide: How to add Plex package signing public key to Synology NAS Package Center
You should also follow the above guide if you receive an error message that states 'unknown publisher' when installing the package.
To manually install Plex, open Package Center and click on Manual Install (top center of the window), the rest is straight forward, just follow the prompts.
Note: You can only access Plex Media Server locally (in your home) and you must use a Private LAN IP address in one of the following ranges:
RFC1918 Name . IP Address Range .......................... Number Of Addresses
24-bit block ........ 10.0.0.0 ---------> 10.255.255.255 ..... 16,777,216
20-bit block ........ 172.16.0.0 -----> 172.31.255.255 ..... 1,048,576
16-bit block ........ 192.168.0.0 -> 192.168.255.255 ..... 65,536
You cannot use a remote or WAN address to configure Plex unless you use an SSH Tunnel.
Q4: I installed Plex, what's next?
On the Synology NAS you should do the following:
DSM 4: No longer supported by Plex.
DSM 5: Open DSM control panel->security->firewall and add an entry there that opens all ports.
Or open only the Ports used by Plex
DSM 6: Open DSM control panel->security->firewall and disable the firewall.
However, it is recommended that you enable the firewall and follow the instructions given for DSM 5 and open only the ports required by Plex. This increases your NAS security and provides communication for Plex.
Note: If the firewall is enabled in DSM 6 for any reason, then you MUST open the ports required by Plex.
DSM All: Open DSM Control Panel->Network->Network Interfaces->Edit LANx (where x is the number of the NIC you are using) and make sure 'Enable Jumbo Frame' is NOT turned on. Reboot the NAS after any changes.
Note: In DSM 6.1 Jumbo Frames are not labelled, instead the option is
Set MTU value manually This should be disabled. The default value for MTU is 1500.
Plex does not operate correctly with Jumbo Frames, they should be turned off, No Exceptions.
Q4a: You should make sure that your media is named correctly!
Failure to follow the guidelines can result in issues with Plex.
See the file naming guidelines here: Media Prepartion
Try using FileBot to rename your files for you.
Also, TinyMediaManager is another renaming program worth trying.
Q5: Where should I put my media files?
It is recommended that you open Control Panel->Shared Folders and create a folder named Media or similar. On the permissions tab, make sure the folder has read/write permissions for both Plex and admin. Then add folders like so, in File Station:
..|_ TV Shows
..|_ Home Movies
Place the relevant media files into each of the above folders and then when creating your libraries in Plex, point Plex to the relevant folder above.
EG: You are creating a Movies library, you would then select the Movies type library and point Plex to the Media/Movies folder.
Q6: Do I have to uninstall before installing a new version?
No, but it is good practise to stop Plex from running by opening Package Center->Installed->Plex->Action and selecting 'stop' in the drop down list, before you install the new version.
After installation, open Package Center->Installed->Plex->Action and select 'start' to run Plex.
Q7: How do I do a complete reinstall of Plex on my Synology NAS?
- Open Package Center->Installed->Plex->Action and select 'stop'.
- Open Package Center->Installed->Plex->Action and select 'uninstall'.
- Open Control Panel->Users and delete the Plex user.
- Open Control Panel->Shared Folders and delete the Plex folder. (This step is Optional, see the note below.)
Note: If you remove the Plex folder, you will lose all of your libraries and metadata etc. You can leave the Plex folder intact if you wish to keep all of your libraries and metadata.
To double check and make sure Plex has been completely removed, SSH into the NAS and check that the relevant folder locations have been removed.
See Q11 for those locations.
See Q14 for details of how to SSH into your NAS.
When re-installing see Q3 or if you are only upgrading see Q6.
Q7a: I don't see the Plex folder anywhere?
If the Plex folder is not visible in File Station, Finder or File Explorer (Windows Explorer), then open Control Panel->Shared Folders and edit the Plex folder and make sure the Plex folder has read/write permissions for both Plex and admin. Also check the other options, they may hide the Plex folder.
Note: Windows users should make sure that 'hide this shared folder in "My Network Places" is NOT turned on.
Don't forget to close and reopen File Station, Finder or File Explorer (Windows Explorer) and/or refresh your browser page before attempting to view the Plex folder.
An alternative method of enabling the Plex folder to be viewed in File Station is to follow these steps:
- SSH into NAS using user=admin and password=admin password then,
sudo -su root(use admin password again)
synoshare --setbrowse Plex 1
Q8: How do I find the installed version of Plex Media Server?
Open Package Center->Installed->Plex The version will be listed under Version in the info panel.
Or, you can open Plex and go to settings->server->general to view the server version. Settings->web->general will display the version of Plex/web that is currently installed.
Q9: How do I find out what model of Synology NAS I'm running?
Open Control Panel->Info Center and your NAS model number will be listed with other important information.
Q10: How do I find the DSM firmware version I am running?
Same as above.
Q11: Where is Plex Media Server installed on my NAS?
Plex is installed to the following locations:
/volume1/@appstore/Plex Media Server (main application folder)
/var/packages/Plex Media Server (various files and scripts)
/volume1/Plex (The Plex Folder, where your libraries and metadata are stored)
Note: The first two locations are only visible by using SSH to log into your NAS. DSM 5: User name is 'admin' or 'root'. DSM 6: User name is admin. Password is the same as your NAS 'admin' password.
Q12: Will my Synology NAS be powerful enough to support client X?
Check the compatibility guide here: Compatibility
Plex will determine if a file needs to be transcoded based on your playback device's specifications. If your NAS is not capable of transcoding (See the compatibility guide) then you need to ensure that your files comply with the file type specifications of your device. Check the manual for your device or visit your device's web site for the specifications.
If the file does not comply with those specifications, then you will need to replace or re-encode your file/s to comply with the specifications of your device.
I recommend Video To Video (PC) or Handbrake (PC/Mac), both are free and both do a good job of re-encoding video.
The recommended format for most files is MP4 H.264/AAC or AVC/AAC. This is the most compatible format across many devices.
Note: If your file/s comply, then most NAS are capable of direct streaming/direct playing video to any client.
Q13: How do I get to the logs directory?
The Plex logs can be found by opening File Station and navigating to:
Plex/Library/Application Support/Plex Media Server/Logs/
See Q7a if the Plex folder is not visible in File Station, Finder or File Explorer.
If you need to post your logs, then please copy ALL of the .log files into a .zip archive (including those in the PMS Plugin Logs folder) and then upload that .zip file to OneDrive or similar and post the link to me (trumpy81) in a private message.
Please include a link to the thread you created in the message. Thanks.
If you are still able to access Plex then, if you want an easy way to read and gather the logs, install the WebTools 2.x plugin and use the excellent Log Viewer that has full download and zip capabilities. It was written by @dane22 & @dagalufh, both valued members of the Plex forums.
It has a lot of other useful features like the Unsupported App Store and Subtitle Management and is compatible with PMS on any platform.
Note: There is also an easy to install .spk package available to install WebTools 2.x
Plex also provides a convenient 'download logs' button in Plex settings->server->help.
Q14: How do I connect to my Synology NAS with SSH?
It depends on your OS:
Windows -> Use Putty.exe or WinSCP Mac and Linux -> Open terminal, type in 'ssh admin@NAS IP Address'
Make sure you have SSH enabled on your NAS. Open DSM Control Panel->Terminal & SNMP and turn on SSH. Turn off Telnet while you are there and also, if you wish to change the default port number of SSH you can do so.
Remember, you will need to use your configured port number when addressing the NAS. The default is 22.
DSM 5 The User name for SSH is 'admin' or 'root'. Password is the same as your NAS 'admin' password.
DSM 6 Using PuTTY or Terminal, you must log in as admin, and use your admin password, once logged in, you can then issue
sudo -su root and you will then be asked for a password, use your admin password again.
DSM 6 Using WinSCP with DSM 6 requires that you follow these steps once only:
- Using PuTTY login to the NAS using admin and the admin password for your NAS
- Once logged in, issue
sudo -su rootand press enter
- You will be asked for a password, use your admin password again.
- type in,
- type in,
cp sudoers sudoers.bak
- type in,
cp sudoers /volume1/Plex... Do not close the PuTTY window.
- Now, using File Station, go to the Plex folder and edit the sudoers file using Text Editor (you may need to install Text Editor from the Package Center first.)
- Add the following lines to the bottom of the sudoers file and save it.
# My addition
%administrators ALL=NOPASSWD: ALL
- Go back to the PuTTY window and type in,
cp /volume1/Plex/sudoers sudoersand allow it to overwrite the existing file
- If all has gone well, then you should now be able to use WinSCP to correct the file permissions etc. when you are using DSM 6.
- If anything has gone wrong, then type in,
cp sudoers.bak sudoers... and that will restore the original sudoers file.
This will allow WinSCP to have access to all of the commands needed for general operation and you wont get any errors when trying to manipulate file permissions.
In PuTTY though, you will still need to issue
sudo -su root to have root access whenever you need it, but you wont be asked for a password.
You will also need to follow the WinSCP Set up below.
If you are using PuTTY, Linux or a Mac to SSH, then here is a list of Linux commands that you can use: http://ss64.com/bash/
Note: That not all of the commands work on the Synology NAS.
WinSCP Set up - When you install WinSCP accept the defaults. Then open WinSCP and click on New Site.
Change the following:
File Protocol = SCP
Host name = Your NAS IP Address
Port Number = the SSH port number configured in DSM Control Panel->Terminal & SNMP
Username = admin or root (root gives 100% access)
Password = Password used by the admin account of your NAS
Note: WinSCP will not work if you don't follow this step.
From the Advanced drop down select Advanced. In the Settings dialogue, go to Environment - SCP/Shell (towards the top of the list). Then for Shell: type in /bin/sh and click OK, then click Save and give your shortcut a name.
Now you should have a shortcut to click on, click on it and then click on login. You should see your local files on the PC on the left and the files etc. on the NAS on the right. The rest is pretty much like Windows Explorer, right click, select properties to set permissions etc.
PuTTY - Double click the putty.exe and then for;
Host Name = Your NAS IP Address
Port = Use the port number you configured in DSM Control Panel->Terminal & SNMP
Connection type = SSH
Then click on open. You will be asked for the user name and then the password, DSM 5 users may enter admin or root as the user name and then use your NAS admin password. DSM 6 users may only use admin as the username and then the NAS admin password.
DSM 6 Once logged in, DSM 6 users should then enter
sudo -su root and enter your NAS admin password again.
Q15: Adding plug-ins to Plex
I highly recommend that you use WebTools to install/uninstall plug-ins. WebTools 2.x
Note: There is also an easy to install .spk package available: WebTools 2.x
Third Party plug-ins are stored here: Plex/Library/Application Support/Plex Media Server/Plug-ins
You must rename the plugin folder after extracting it from the zip file and the folders should look like so:
If you don't see the Plex folder, then see Q7a.
Q16: I have a problem with plex.tv, how can I connect to it?
Q17: My files wont Play in Plex?
If your files don't play, the first thing to do is to check the file. There are many things that can effect a files ability to play, but if the file is damaged at all, then you cannot expect it to play at all.
Here are the command line templates you will need to use with ffmpeg in your CLI environment:
Linux ............ ffmpeg -v error -i file.avi -f null - 2>error.log
Windows ..... ffmpeg.exe -v error -i file.avi -f null - >error.log 2>&1
Windows users, see Q28 for a batch file to check all videos in a location on your Windows machine or Network Attached Storage device.