Universal Media Server | Forum

Posted: **Sun Jun 29, 2025 4:30 am**

I see errors that UMS is unable to bind to an IP address as it is already in use, it is as if there is another UMS process is running.

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ERROR 2025-06-27 04:36:48.446 [main] Couldn't start Jetty server
java.io.IOException: Failed to bind to /0.0.0.0:9001
	at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:349)
	at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:313)
	at org.eclipse.jetty.server.Server.lambda$doStart$0(Server.java:569)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
	at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.forEach(Unknown Source)
	at org.eclipse.jetty.server.Server.doStart(Server.java:565)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:93)
	at net.pms.network.webguiserver.WebGuiServerJetty.start(WebGuiServerJetty.java:129)
	at net.pms.network.webguiserver.WebGuiServerJetty.<init>(WebGuiServerJetty.java:85)
	at net.pms.network.webguiserver.WebGuiServerJetty.createServer(WebGuiServerJetty.java:163)
	at net.pms.network.webguiserver.WebGuiServer.createServer(WebGuiServer.java:120)
	at net.pms.PMS.resetWebGuiServer(PMS.java:696)
	at net.pms.PMS.init(PMS.java:349)
	at net.pms.PMS.createInstance(PMS.java:1009)
	at net.pms.PMS.main(PMS.java:960)
Caused by: java.net.BindException: Address already in use: bind
	at java.base/sun.nio.ch.Net.bind0(Native Method)
	at java.base/sun.nio.ch.Net.bind(Unknown Source)
	at java.base/sun.nio.ch.ServerSocketChannelImpl.netBind(Unknown Source)
	at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)
	at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:344)
	... 22 common frames omitted

As there are multiple startups shown in the logs I don't think the previous process fully shutdown before restarting in trace mode.
Check your Task Manager to make sure there are not multiple copies running. It will show as "javaw.exe"

Posted: **Sun Jun 29, 2025 11:59 am**

I am not sure what is going yesterday it was finding no renders today it is just showing a black screen and nothing playing

Posted: **Mon Jun 30, 2025 8:13 pm**

I have no idea what is going on for the past couple days the video I was watching only shows a black screen & doesn't resume play & I have tried force close on the VLC player on the Firestick and closing UMS on my laptop and nothing has changed

Posted: **Tue Jul 01, 2025 12:51 pm**

That is a bit strange. It could be it is not using the right conf file so is transcoding something incorrectly that cannot be played by the renderer.
With VLC very little if anything will need to be transcoded.

Your logs were still a bit strange as it is not in TRACE mode when it should have been and is giving errors binding to ports as it is not shutting down properly.

I could not see anything being played so can't tell if anything was transcoding.

One thing that might help is if you make sure UMS is not running and edit "C:\ProgramData\UMS\UMS.conf" in a text editor to add "log_level =TRACE" at the end.
This will start UMS in trace mode immediately when run so you don't need to switch modes to make the logs. You only need to repeat the problem then pack the log files.

So your Firestick shows up now? I did see something about VLC in the logs but no other info. What about on the iPad?

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