Connection lost issue on Synology


#1

Well… nothing has gone well. Now when I start Duplicati (it and Mono report “running”, I continue to get server connection issues in the Duplicati window.

I appreciate any suggestions here. I need a reliable tool to access Google Drive and B2.


How to install Duplicati on Synology / DSM
#2

Are you connecting from with the DSM manager or a ‘remote’ machine?


#3

I was connecting to DSM web interface on the LAN using…
https://NASname:port

Thanks for your response.

I discovered was that if I log into the DSM web interface from
http://192.168.xxx.xxx:port

Then duplicati opens.

Initially, when it opens it throws a blank popup window which I cannot acknowledge. Next I close/reopen duplicati and I get the basic interface. Sometimes I have to close/reopen to see all the dropdown options… for example the dropdown from which to select Dropbox, etc.

I tried logging in to DSM via DDNS and it too fails. So for now, only the LAN IP seems to work.

I have managed to run a backup (manually) to Dropbox and to restore from there. My hope is to get duplicati working next with B2 and Google Drive via the Synology NAS package.


#4

Is that a typo or is it really what shows up in the address bar (no domain or IP address)?

Also, what happens if you change the “https” to just “http”?


#5

That was a formatting error (darned brackets). It should have read…
https://NASname:port
Here’s the error popup I get frequently…
https://i.imgur.com/0jYg64v.png


#6

Check out this post:


#7

Thanks for pointing me to that post What seems to work for me now is to log into the DSM interface using my LAN IP (I presume I could do this via VPN, but haven;t tested). For example…

hxxps:/192.168.1.10:5001

When I open the duplicati gui I initially get a blank error popup window, I close that, and then close the duplicati window. Then I reopen the duplicati gui and all is well. No error popup, and the dropdown selections for creating a new backup are then active.

I do get warnings, which seem to be about certs, but otherwise backup/restore/encryption seem to be working on Dropbox and B2.


#8

I also saw this on Synology after upgrading from Duplicati 2.0.3.3 to 2.0.4.5. I ran the command at the bottom (Synology section) of this page to resolve it:


#9

I’m having same issue on DSM 6.2.1 and Duplicati 2.0.4.10. The workaround posted above doesn’t work for me.
The only thing that works is starting the server manually.


#10

More info: Using chrome to inspect the traffic here is what I see repeating periodically on attempted reconnect every 15 seconds

Request URL: http://192.168.70.5:8200/webman/login.cgi?_dc=0.08646593455368112
Request Method: GET
Status Code: 404 Internal server error
Remote Address: 192.168.70.5:8200
Referrer Policy: no-referrer-when-downgrade

Request URL: http://192.168.70.5:8200/api/v1/serverstate/?lasteventid=10&longpoll=false&duration=299s
Request Method: GET
Status Code: 403 Administrator login required
Remote Address: 192.168.70.5:8200
Referrer Policy: no-referrer-when-downgrade


#11

Hmmm…I don’t recall seeing the “Administrator login required” before.

Do these seem to show up in pairs?


#12

Yes, these show in pairs every 15 seconds on automatic reconnect attempt.


#13

Are there any other logs I can grab? Where are they located?


#14

When I open the URL in new windows (right click open in new window) I get only one of the errors repeating every 15 seconds on reconnect

Request URL: https://192.168.70.5:5001/webman/3rdparty/Duplicati/api/v1/serverstate/?lasteventid=-1&longpoll=false&duration=299s
Request Method: GET
Status Code: 403 Administrator login required
Remote Address: 192.168.70.5:5001
Referrer Policy: no-referrer-when-downgrade


#15

SOLVED!!! Mea culpa, I apologize for wasting time here. I did not have my user in http group. The user is admin level but still needs to be in http group.
After adding user to http group I got one message about missing XSRF token and then when I re-opened the window all is working. No more lost connection, reconnecting messages.

Step 3) in install instructions here is really important!


#16

Glad to hear you figured it out!

And don’t worry about “wasting time” - your post will likely help many people save time going forward. :slight_smile: