Solved Drive destkop client problem

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Solved Drive destkop client problem

Hey there
I used nextcloud for quite a while. But i keep having some issues with external storage. Also I do not like the fact with the docker container not supporting th PUID feature...
Anyway i want to give synology drive a chance to prove itself.
I configured it with following parameters:
So far so good. Then I wanted to test this configuration: Opened the drive app on my iPhone:, user and password and use https check. And it worked perfect.
And now my struggle: This do not want to work on my computers. Inside the network or outside the network. Always the error: cannot connect to server.
I tried several diffrent option: customise word like etc. No connection.
I tried it with three macs and a windows virtual machine.
I can only get a connection, when I use the direct IP-address of the server. When I connected with the direct IP I can use the forwarding of the client app to open the drive app in my browser. This is working.
For now... I do not have any addtional ideas.

Is there something I missed? Maybe a configuration? A hidden secret?

Thanks in advance!
So trying to get to your FQDN does not work inside your LAN on any desktop device in any browser? If so then your router does not support NAT loopback feature and you will have to use local nas ip/port to get around this.
That is maybe a good hint. 6690 is a port I'm not aware of.
But then there should be a difference in the mobile and desktop version. The clients will use different ports.

I will check that!
Last edited:
It was the port 6690 :)
Thanks Rusty!
Hi, I just have the same issue, but I don't have clear how to resolve. I redirected on my router the port 6690 to 443 for the reverse proxy do the work.
Here the RP resends from 443 to web interface drive port that I think that is not the way. (it works on browser perfectly).

But I think I missing something.

I just deactivated the firewall on the NAS. No good results.
I tried on synology drive desktop client to connect to and and nothing. "Connection error".

for RP I have htaccess file like this.. for when I becomes an https petition... but it is for HTTP incoming calls redirect https calls.
I start thinking that it gonna be one rule I have that is redirects directly to DSM Web interface, but it only answer if port is 443, not 6690...

RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

maybe it is redirecting to nowhere the 6690 over ssl?

Can you tell me how do you did that works?


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Ok I solved. just using my and redirect from 6690 to 6690 on router to the nas.
Ok I solved. just using my and redirect from 6690 to 6690 on router to the nas.
6690 is the Druve client port that desktop and especially mobiles apps use. Apart from that you can get to the drive ui via 443 but the client one needs 6690 to work.

Glad you got it going.

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