How the connection works
Soundiiz signs you in through Plex.tv, with the email and password of your Plex account. Plex then lists the servers that account can access, and we ask the selected server for its audio playlists. Your Plex password is entered only on Plex.tv, not in Soundiiz.
So the two halves fail differently. A sign-in that will not start is a browser problem. A sign-in that works and then drops you is a server problem, and that is the more common one.
What your server needs
The sign-in page will not load
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Turn off your content blocker for the page
This is the usual culprit, uBlock Origin above all. Switch it off for the page, then reload and try the connection again. -
Clear the browser cache, or use another browser
An old cached page can keep serving a form that no longer works. A second browser tells you in one try whether that was it.
You sign in, then get disconnected
This means the Plex.tv sign-in worked, but Soundiiz could not finish the connection to the selected server. Its public address may be unreachable or too slow, blocked by something in front of it, point to a different Plex server, or fail HTTPS validation. The platform left blinking on Connecting instead of turning green is the same story, and Remote Access showing green on the Plex side does not settle it: that light says your server reached Plex, not that we can.
Open a route through them, or switch them off for the connection. Cloudflare is the exception, because turning it off is rarely an option: it needs the Soundiiz addresses let through instead, and a page of its own shows how to find them in your logs. Whichever it turns out to be, your server logs name the reason it refused, and they are worth a look before anything else.
Frequently Asked Questions
I am connected, but no playlist shows up
Start with the Plex profile and server selected during the connection. A PIN-protected profile, a different server selected by mistake, or a server with no audio playlist can all leave this view empty. Reconnect and use the advanced settings only when you need to select a specific server or Home profile.
Does Soundiiz get my Plex password?
No. You type it on the Plex.tv page, and what comes back to us is a permission to reach your server, which you can withdraw whenever you like.
My server runs on a NAS. Is that hopeless?
Not at all, as long as the NAS lets the server answer from the outside. What blocks us is the private network some of them keep the server on, not the NAS itself.
Do I have to leave the server on?
Yes, both to connect and to transfer. Your music lives on that machine and nowhere else, so a server that goes to sleep halfway through takes your playlists with it.
Do I have to fill in the connection settings on the sign-in page?
No. Leave them empty when automatic discovery finds the right server. Use them when your account can access several servers or profiles, or when you need a custom public address. Enter the complete address with http:// or https://, the port, and any reverse-proxy path. The address must reach a Plex server your account can access; if a selector does not match, another accessible server may be chosen.