Synology NAS + Mac stuck in Relay WAN

Support
1

Thank you for your patience and assistance. I am learning but still very ignorant to some things.

I have SyncThing installed on a Synology NAS. It was installed from the SynoCommunity.

I have a Folder from the NAS synced with two Mac computers. I have it set to “SEND ONLY” from the Nas, and “RECEIVE ONLY” from the computers. For some reason, one computer is stuck on RELAY while the other computer is TCP. I cannot figure out what the differences could. Both firewalls enable connections through ST.

Are there some configurations within ST that I can modify to relieve the RELAY issue?

2

Could you provide some details about your network setup? (e.g. wired, wireless, IP addresses, etc.)

3

Yes.

The two macs are remote (on a different network completely) than the NAS server.

I believe both are hardwired over ethernet.

Not sure what to relay as far as IP addresses go.

4

Are the two Macs together on the same network? Or is there a total of 3 separate networks?

It sounds like you’ve got a networking issue rather than it being a Syncthing issue because Syncthing only resorts to using relay WAN if it cannot find a more direct path.

At this point, a network diagram along with as much detail about the setup as possible is required in order to help because computer networking has a lot of moving parts, and diagnosing networking issues without access to your devices and network makes it even harder.

1 Like
5

Yes, the two Macs are independent of each other network wise. All three devices are in three different cities and there are no VPNs enabled in this instance. So three separate networks.

I know I’ve been vague, but I found a solution!

The Mac network that was forcing relays was using a router supplied by the ISP, spectrum. Even when attempting to open 22000, it didn’t make a change. On a hunch, we got a 3rd party router and enabled forwarding with TCP. Now we have a direct connection with what is seeming like saturated speeds.

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