# Joplin Server Sync Issue: "Some items cannot be synchronised. View them now"

[MichaelS]

Operating system

Windows

Joplin version

3.4.12

Desktop version info

Joplin 3.4.12 (prod, win32)

Device: win32, 11th Gen Intel(R) Core(TM) i9-11950H @ 2.60GHz
Client ID: f4bac75177764ac28deac94ec891e139
Sync Version: 3
Profile Version: 48
Keychain Supported: Yes
Alternative instance ID: -

Revision: e9a9f68

Backup: 1.4.3
Easy Backlinks: 1.3.1
Freehand Drawing: 3.1.0
Insert YouTube Video: 1.3.0
Note Link System: 0.8.0
Note Tabs: 1.4.0
Rich Markdown: 0.16.4
Simple Image Resize: 1.3.3
Text Colorize: 1.2.5

Sync target

Joplin Server

Editor

Markdown Editor

What issue do you have?

Joplin Server Sync Issue: "Some items cannot be synchronised. View them now"

Please support me in this sync issue. I am rather new, but I am trying to provide as much detail as possible:

• I moved from Joplin Sync using Filesystem (which sometimes lead to Sync issues) to Joplin Sever running on my TrueNAS Scale.

• 1 - I created a new empty profile on my Desktop & imported all data from a *.jex file. About 6GB and some 10k individual Notes.

• 2 - I then Synced all of it to my TrueNAS Joplin Server

• 3 - Finally I created another naked profile on my Notebook and synced it to the TrueNAS Joplin Server. This took about 2 full days to complete, but it seems everything did sync.

I get this error indicator on my Notebook:

Log & Sync errors

I attached the Log & sync errors. It seems that pretty much all my Notes have this issue (or at least some 77000 of them), even though they seem to sync fine. Log.txt is 44MB in size, so I simply compressed all files using 7zip to fit them into the max upload size of 10MB:

202511 Joplin Server on TrueNAS Sync Errors.7z (2.8 MB)

Configuration TrueNAS Joplin Server

Name: joplin
App Version: amd64-3.4.3
Version: 1.4.17

Source: GitHub - laurent22/ER,O: Joplin - note !aÅjag
for Windows, macOS, Linux, Android and iOS. , hub.docker.com
Train: community

Configuration Notebook

Joplin 3.4.12 (prod, win32)

Device: win32, 11th Gen Intel(R) Core(TM) i9-11950H @ 2.60GHz
Client ID: f4bac75177764ac28deac94ec891e139
Sync Version: 3
Profile Version: 48
Keychain Supported: Yes
Alternative instance ID: -

Revision: e9a9f68

Backup: 1.4.3
Easy Backlinks: 1.3.1
Freehand Drawing: 3.1.0
Insert YouTube Video: 1.3.0
Note Link System: 0.8.0
Note Tabs: 1.4.0
Rich Markdown: 0.16.4
Simple Image Resize: 1.3.3
Text Colorize: 1.2.5

[_vg]

I am afraid your screenshot of the error is not visible. Also I am not sure where your logs are.

If your error is about a single item or just a few, you could try locating the associated notes, duplicating them and deleting the old problematic ones.

Or maybe this is about an attachement which is too large?

Looking forward to your full error message and logs.

[MichaelS]

Thank you for the fast reply.

Sorry - I couldn’t upload as new user and I also couldn’t edit the post until I was “allowed” into the community

I have updated the original post with the screenshot & log files.

Regarding your question: From the log I understand that pretty much every single note is affected. As far as I can tell, the sync between the 2 Windows 11 machines and the Joplin Server on TrueNAS works fine, but … this error message clearly indicates that something is not working as intended.

Is there some “upper limit”. I currently have:

• About 10000 individual Notes (see screenshot)
• The Sqlite DB “database.sqlite” is 1.54 GB in siza
• Ressources folder has 56263 files totalling 6.27 GB

[MichaelS]

I am only allowed I media item per post (seems … a weird restriction IMHO). So here comes

the second screenshot:

[mrjo118]

The key entries in the log are those with: checkDisabledSyncItemsNotification

It looks like there are 45 resources which were unable to be downloaded:

checkDisabledSyncItemsNotification: 45 resource download errors: Triggering notification

There seems to be many errors like this:

2025-11-12 09:02:43: [error] ResourceFetcher: Could not download resource: c69e6f133fb8479cbc8ebf9b537e636c Error: connect EHOSTUNREACH 192.168.0.158:30106
Code: EHOSTUNREACH
Error: connect EHOSTUNREACH 192.168.0.158:30106
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1636:16)

For that error, a Google AI summary says the following:

EHOSTUNREACH

means "No route to host", indicating a network connection could not be established because the system couldn't find a way to reach the destination. This can happen for several reasons, such as a firewall blocking the connection, a problem with your local network configuration or routing table, the host being offline, or issues with IPv4/IPv6

Check that your network configuration on your server is all correct, and then click the ‘View them now’ button and use the Retry all button to re-attempt downloading those 45 resources

[MichaelS]

Thanks a lot for your help.

You were right! The issue is, that at first the window after clicking “View them now” appears empty and only shows the blue button “Export debug report”.

There is no progress bar or anything else indicating that the system is busy preparing the actual report. However, after waiting for about 10 minutes (so much longer than anyone not knowing this would) I got the following report:

I then simply clicked “Retry All” and waited another 5 min or so. Now the error is gone.

Learning

You need to wait for a very long time after clicking “View them now”.

Suggestion

Some kind of progress bar or other indication, that Joplin ist preparing a report of broken files would be great to make the user understand he/she has to wait. Only after the report is complete, the button “Retry all” will appear.