Client not authenticated! 403: Forbidden (1.16.5-1.18.2) (Possibly ViaVerison)

[lynrayy]

Describe the bug An error occured Client not authenticated! 403: Forbidden

Possible problem: server using ViaVersion and it is possible to join server with 1.16-1.19

Steps to reproduce

1. Start WDL
2. Set up IP in wdl
3. RMB -> Pause chunk saving
4. Connected to server

Log output

java.lang.RuntimeException: Client not authenticated! 403: Forbidden
	at proxy.auth.ClientAuthenticator.makeRequest(ClientAuthenticator.java:64)
	at proxy.EncryptionManager.lambda$sendReplacementEncryptionConfirmation$11(EncryptionManager.java:304)
	at proxy.EncryptionManager.disconnectOnError(EncryptionManager.java:120)
	at proxy.EncryptionManager.sendReplacementEncryptionConfirmation(EncryptionManager.java:304)
	at proxy.EncryptionManager.lambda$setClientEncryptionConfirmation$5(EncryptionManager.java:220)
	at proxy.EncryptionManager.attempt(EncryptionManager.java:107)
	at proxy.EncryptionManager.setClientEncryptionConfirmation(EncryptionManager.java:209)
	at packets.handler.ServerBoundLoginPacketHandler.lambda$new$1(ServerBoundLoginPacketHandler.java:50)
	at packets.handler.PacketHandler.handle(PacketHandler.java:57)
	at packets.DataReader.readPackets(DataReader.java:163)
	at packets.DataReader.pushData(DataReader.java:118)
	at proxy.ProxyServer.lambda$run$4(ProxyServer.java:86)
	at util.ExceptionHandling.attempt(ExceptionHandling.java:12)
	at proxy.ProxyServer.lambda$run$6(ProxyServer.java:83)
	at java.base/java.lang.Thread.run(Thread.java:833)  
...

Screenshots Can't log into server via WDL: Servers in server list: https://i.imgur.com/a0koF8w.png Successfully logged into server directly:

Version

• Game: Minecraft 1.18.2
• Also tested (same error): Minecraft 1.19.2
• Also tested (same error): Minecraft 1.16.5
• Downloader: latest (.jar)
• Launcher (if login issues): PolyMC 1.4.1

[lynrayy]

Maybe it is because server disabled new microsoft reports feature

[lynrayy]

Trying 1.16.5: java.lang.RuntimeException: Client not authenticated! 403: Forbidden at proxy.auth.ClientAuthenticator.makeRequest(ClientAuthenticator.java:64) at proxy.EncryptionManager.lambda$sendReplacementEncryptionConfirmation$11(EncryptionManager.java:304) at proxy.EncryptionManager.disconnectOnError(EncryptionManager.java:120) at proxy.EncryptionManager.sendReplacementEncryptionConfirmation(EncryptionManager.java:304) at proxy.EncryptionManager.lambda$setClientEncryptionConfirmation$5(EncryptionManager.java:220) at proxy.EncryptionManager.attempt(EncryptionManager.java:107) at proxy.EncryptionManager.setClientEncryptionConfirmation(EncryptionManager.java:209) at packets.handler.ServerBoundLoginPacketHandler.lambda$new$1(ServerBoundLoginPacketHandler.java:50) at packets.handler.PacketHandler.handle(PacketHandler.java:57) at packets.DataReader.readPackets(DataReader.java:163) at packets.DataReader.pushData(DataReader.java:118) at proxy.ProxyServer.lambda$run$4(ProxyServer.java:86) at util.ExceptionHandling.attempt(ExceptionHandling.java:12) at proxy.ProxyServer.lambda$run$6(ProxyServer.java:83) at java.base/java.lang.Thread.run(Thread.java:833) java.lang.IllegalStateException: Packet parsing may have been incorrect! Expected length: 261. Used bytes: 0 at packets.DataReader.readPackets(DataReader.java:172) at packets.DataReader.pushData(DataReader.java:118) at proxy.ProxyServer.lambda$run$4(ProxyServer.java:86) at util.ExceptionHandling.attempt(ExceptionHandling.java:12) at proxy.ProxyServer.lambda$run$6(ProxyServer.java:83) at java.base/java.lang.Thread.run(Thread.java:833)

[lynrayy]

Working with manual authorization (microsoft):

• Game: Minecraft 1.18.2
• Downloader: latest (.jar)
• Launcher: PolyMC 1.4.1

[mircokroon]

Probably this is due to the launcher you're using, so you'll have to use either a different launcher or use the Microsoft login option.