Can't communicate with Syncthing

[ItsKazBorn]

I have syncthing open, as I can access the config page on my browser and it syncs folders, but synctrayzor won't be able to communicate with syncthing. When I open synctrayzor, it stays stuck in the "Syncthing Stopped / Start Syncthing" page. If I click "Start Syncthing" the following popup shows:

It adds this to the Syncthing console bellow:

[monitor] 18:35:23 INFO: Log output saved to file "C:\Users\[USER]\AppData\Local\Syncthing\syncthing.log"
[start] 18:35:23 INFO: syncthing v1.18.1 "Fermium Flea" (go1.16.6 windows-amd64) [email protected] 2021-07-30 12:41:57 UTC
[start] 18:35:23 WARNING: Failed to initialize config: config file version (37) is newer than supported version (35). If this is expected, use -allow-newer-config to override.

Also adds this to the synctrayzor log:

2025-01-22 18:44:50.2781 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Starting syncthing: C:\Users\[USER]\AppData\Roaming\SyncTrayzor\syncthing.exe 
2025-01-22 18:44:50.3840 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Syncthing exited. Restarting... 
2025-01-22 18:44:50.3840 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Starting syncthing: C:\Users\[USER]\AppData\Roaming\SyncTrayzor\syncthing.exe 
2025-01-22 18:44:50.4762 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Syncthing exited. Restarting... 
2025-01-22 18:44:50.4762 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Starting syncthing: C:\Users\[USER]\AppData\Roaming\SyncTrayzor\syncthing.exe 
2025-01-22 18:44:50.5693 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Syncthing exited. Restarting... 
2025-01-22 18:44:50.5693 #24452 [Info] SyncTrayzor.Syncthing.SyncthingProcessRunner: Starting syncthing: C:\Users\[USER]\AppData\Roaming\SyncTrayzor\syncthing.exe 
2025-01-22 18:44:50.6635 #24452 [Warn] SyncTrayzor.Syncthing.SyncthingProcessRunner: 4 restarts in less than 00:01:00: not restarting again 

What I tried:

• Reinstalling both syncthing (via both the Syncthing Windows Setup and Syncthing's own installer) and synctrayzor
• The "Kill all Syncthing processes" in synctrayzor and ending all syncthing processes manually via task manager then clicking "Start Syncthing" again

[dust2k]

Your new config.xml won't be recognized by old versoin of syncthing.exe, update syncthing.exe to newest version first then the problem will be fixed.

[mezmare]

It tells you what the problem is here:
"config file version (37) is newer than supported version (35). If this is expected, use -allow-newer-config to override."

If you simply want to get rid of this, open SyncTrayzor window, go to File, then Settings, tab "Syncthing", and Advanced, and in start parameters... paste "-allow-newer-config to override", without the quotation marks. Restart the application.