I’m trying to setup Syncthing for the first time.
I have the remote devices connected. The folder “pizza” is synced and “up to date”. The file paths are correct. And when I add a file to seedbox (mariner.whatbox.ca), then TrueNAS (4028ff337c8c) successfully recognizes a new file was added (papajohn.txt) and finds it under the Latest Change. This only happens in one direction. When I add something to seedbox, it recognizes it as the Lastest Change on TrueNAS, but not when I add something to TrueNAS. However the main problem is that files are NOT syncing in either direction.
Here is the log from TrueNAS:
2025-10-17 09:41:55 INF Synced file (folder.label=pizza folder.id=ccpse-6hkze folder.type=sendreceive file.name=papajohn.txt file.modified="2025-10-17 09:41:44.407945997 -0500 CDT" file.permissions=0640 file.size=6 file.blocksize=131072 blocks.local=0 blocks.download=1 log.pkg=model)
2025-10-17 09:51:31 WRN Failed to acquire open port (mapping="[::]:22000/TCP" id=NAT-PMP@172.16.12.1 error="getting new lease on NAT-PMP@172.16.12.1 (external port 6760 -> internal port 22000): read udp 172.16.12.2:52083->172.16.12.1:5351: recvfrom: connection refused" log.pkg=nat)
Here is the log from seedbox:
2025-10-17 14:37:56 INF Ready to synchronize (folder.label=pizza folder.id=ccpse-6hkze folder.type=sendreceive log.pkg=model)
2025-10-17 14:37:56 INF Folder changed state (folder=ccpse-6hkze state=scan-waiting log.pkg=model)
2025-10-17 14:37:56 INF Folder changed state (folder=ccpse-6hkze state=scanning log.pkg=model)
2025-10-17 14:37:56 INF Folder changed state (folder=ccpse-6hkze state=idle log.pkg=model)
2025-10-17 14:37:56 INF Completed initial scan (folder.label=pizza folder.id=ccpse-6hkze folder.type=sendreceive log.pkg=model)
2025-10-17 14:38:37 INF Peer has a new index ID (device=XXXXXX folder.label=pizza folder.id=ccpse-6hkze folder.type=sendreceive indexid=0xD62584DD8494F319 log.pkg=model)
2025-10-17 14:40:27 INF Folder changed state (folder=ccpse-6hkze state=scan-waiting log.pkg=model)
2025-10-17 14:40:27 INF Folder changed state (folder=ccpse-6hkze state=scanning log.pkg=model)
2025-10-17 14:40:27 INF Folder changed state (folder=ccpse-6hkze state=idle log.pkg=model)
2025-10-17 14:41:15 INF Folder changed state (folder=ccpse-6hkze state=scan-waiting log.pkg=model)
2025-10-17 14:41:15 INF Folder changed state (folder=ccpse-6hkze state=scanning log.pkg=model)
2025-10-17 14:41:15 INF Folder changed state (folder=ccpse-6hkze state=idle log.pkg=model)
2025-10-17 14:41:54 INF Folder changed state (folder=ccpse-6hkze state=scan-waiting log.pkg=model)
2025-10-17 14:41:54 INF Folder changed state (folder=ccpse-6hkze state=scanning log.pkg=model)
2025-10-17 14:41:54 INF Folder changed state (folder=ccpse-6hkze state=idle log.pkg=model)
2025-10-17 14:48:09 INF Folder changed state (folder=mqfib-mmplj state=scan-waiting log.pkg=model)
2025-10-17 14:48:09 INF Folder changed state (folder=mqfib-mmplj state=scanning log.pkg=model)
2025-10-17 14:48:09 INF Folder changed state (folder=mqfib-mmplj state=idle log.pkg=model)
This feels like a permissions issue, but It’s odd to me that it says ““Synced file” in the logs. I wouldn’t expect it to appear successful if the file didn’t actually make it. Here are some ownership info.
TrueNAS ownership:
ls -ld /mnt/MyPool/MyDataset/pizza
drwxrwxrwx+ 2 root root 7 Oct 17 10:56 /mnt/MyPool/MyDataset/pizza
seedbox ownership:
ls -ld ${PWD}/pizza
drwxr-x— 3 hankmountain hankmountain 78 Oct 17 15:01 /home/hankmountain/pizza
I’m at a loss as what to do. It feels like a permissions issue, but the lack of error message makes it difficult to diagnose. I’ve tried different permutations of chown to try to get the ownership correct, but I’ve been unsuccessful.
