Roku App 4.0.4 can't login to Linux Server 4.4.3.0

[jsbiff 0]

I just downloaded and installed the latest Emby Linux server (4.4.3.0) on Ubuntu 20.04 on AMD64 CPU, and the latest Emby Roku App (4.0.4) on my Roku Stick.

I know I'm definitely putting in the right password - I can login fine with Firefox on the Ubuntu server device using that password, but the exact same username and password on the Roku app just always fails to connect with "Invalid username or password".

Snippet below of log that I think shows the error:

2020-07-25 11:27:14.583 Info HttpServer: HTTP GET http://hostname:8096/emby/system/info/public?format=json. UserAgent: Roku/DVP-9.30 (249.30E04170A)
2020-07-25 11:27:14.585 Info HttpServer: HTTP Response 200 to 192.168.1.176. Time: 2ms. http://hostname:8096/emby/system/info/public?format=json
2020-07-25 11:27:15.702 Info HttpServer: HTTP GET http://hostname:8096/emby/Users/Public. UserAgent: Roku/DVP-9.30 (249.30E04170A)
2020-07-25 11:27:15.712 Info HttpServer: HTTP Response 200 to 192.168.1.176. Time: 11ms. http://hostname:8096/emby/Users/Public
2020-07-25 11:28:10.061 Info HttpServer: HTTP POST http://hostname:8096/emby/Users/AuthenticateByName?format=json. UserAgent: Roku/DVP-9.30 (249.30E04170A)
2020-07-25 11:28:10.089 Error UserManager: Error authenticating with provider Default
    *** Error Report ***
    Version: 4.4.3.0
    Command line: /opt/emby-server/system/EmbyServer.dll -programdata /var/lib/emby -ffdetect /opt/emby-server/bin/ffdetect -ffmpeg /opt/emby-server/bin/ffmpeg -ffprobe /opt/emby-server/bin/ffprobe -restartexitcode 3 -updatepackage emby-server-deb_{version}_amd64.deb
    Operating system: Unix 5.4.0.42
    64-Bit OS: True
    64-Bit Process: True
    User Interactive: True
    Runtime: file:///opt/emby-server/system/System.Private.CoreLib.dll
    System.Environment.Version: 3.1.2
    Processor count: 8
    Program data path: /var/lib/emby
    Application directory: /opt/emby-server/system
    System.Exception: System.Exception: Invalid username or password
       at Emby.Server.Implementations.Library.DefaultAuthenticationProvider.Authenticate(String username, String password, User resolvedUser)
       at Emby.Server.Implementations.Library.UserManager.AuthenticateWithProvider(IAuthenticationProvider provider, String username, String password, User resolvedUser, CancellationToken cancellationToken)
    Source: Emby.Server.Implementations
    TargetSite: System.Threading.Tasks.Task`1[MediaBrowser.Controller.Authentication.ProviderAuthenticationResult] Authenticate(System.String, System.String, MediaBrowser.Controller.Entities.User)
    
2020-07-25 11:28:10.091 Info HttpClient: POST https://connect.emby.media/service/user/authenticate
2020-07-25 11:28:10.410 Info UserManager: Authentication request for myusername has been denied.
2020-07-25 11:28:10.416 Warn HttpServer: AUTH-ERROR: 192.168.1.176 - Invalid username or password entered.
2020-07-25 11:28:10.417 Error HttpServer: Invalid username or password entered.

Edited July 26, 2020 by jsbiff

[speechles 2062]

You may need to delete the Roku devices in your devices tab of your Emby server. Do not worry they regenerate when those devices reconnect to the server. It just shows which devices have used your Emby server. After you delete all the Roku devices from the devices tab try to connect on the Roku again. This time it should work. Let us know if it does not. Thanks.

 

Also.. wipe your Emby server address(the TLD shown not the LAN numerics) from the text. Everyone is not a good person that may read your post.

Edited July 25, 2020 by speechles

[jsbiff 0]

So, there aren't any devices in the devices tab for the Roku server, except for the Firefox device from my localhost connection. There's nothing to wipe.

I went ahead and edited my post, but honestly, there's no way for anyone to make any use of that hostname, since it's on a private address LAN behind both NAT and Firewall. Also, as an added layer of defense-in-depth, I disabled all remote access in the Emby server.

[jsbiff 0]

Any other ideas? Any other logs I can provide for diagnosing why it's failing?

[Luke 42276]

Curious do you have any symbols in your password?

[jsbiff 0]

2 hours ago, Luke said:

Curious do you have any symbols in your password?

Yes, I do. Is that a problem?

[Luke 42276]

Not at all, just trying to narrow it down. Thanks.

[speechles 2062]

The Roku might have problems with certain characters. Can you divulge what the special character or characters are? No specific order.

[jsbiff 0]

There is an '&' character. I was able to find it and type it on the Roku on-screen keyboard (when I was attempting to login before I first reported this, that is). I suppose maybe somehow it isn't getting transmitted correctly as part of the password during login.

Hey, I know that in html/xml, the & character has to be encoded specially - typically as & or as a character code, like %26 - maybe the Roku app needs to, but isn't properly encoding the '&' when transmitting it to the server?

Edited July 30, 2020 by jsbiff

[jsbiff 0]

I tested this by changing the password to not have the '&', and it worked. So it does seem to be the ampersand.

[Luke 42276]

Yes it's just a bug in the app. It is resolved for the next app update. Thanks for helping us chase it down.