# Beats can not connect to Logstash

**URL:** <https://discuss.elastic.co/t/beats-can-not-connect-to-logstash/244584>\
**Category:** Logstash\
**Created:** [August 11, 2020, 3:20pm UTC](https://discuss.elastic.co/t/beats-can-not-connect-to-logstash/244584 "2020-08-11T15:20:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ben\_said](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ben_said/32/48319_2.png) [@Ben\_said](https://discuss.elastic.co/u/Ben_said)\
**Post date:** [August 11, 2020, 3:20pm UTC](https://discuss.elastic.co/t/beats-can-not-connect-to-logstash/244584/1 "2020-08-11T15:20:16Z")

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[2020-08-12T12:53:29,146][INFO][org.logstash.beats.BeatsHandler][main][2ab0e765b84268c7156e67dc3b10bd35b876b27ad91871edfa9d3b1669f4fea7] [local: 10.100.80.40:5044, remote: 10.100.80.40:39494] Handling exception: org.logstash.beats.InvalidFrameProtocolException: Invalid version of beats protocol: 69  
[2020-08-12T12:53:29,146][WARN][io.netty.channel.DefaultChannelPipeline][main][2ab0e765b84268c7156e67dc3b10bd35b876b27ad91871edfa9d3b1669f4fea7] An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.  
io.netty.handler.codec.DecoderException: org.logstash.beats.InvalidFrameProtocolException: Invalid version of beats protocol: 69  
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:471) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:404) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:371) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:354) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:262) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.channel.AbstractChannelHandlerContext.access$300(AbstractChannelHandlerContext.java:61) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.channel.AbstractChannelHandlerContext$4.run(AbstractChannelHandlerContext.java:253) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:66) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) [netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-all-4.1.49.Final.jar:4.1.49.Final]  
at java.lang.Thread.run(Thread.java:748) [?:1.8.0\_242]  
Caused by: org.logstash.beats.InvalidFrameProtocolException: Invalid version of beats protocol: 69  
at org.logstash.beats.Protocol.version(Protocol.java:22) ~[logstash-input-beats-6.0.11.jar:?]  
at org.logstash.beats.BeatsParser.decode(BeatsParser.java:62) ~[logstash-input-beats-6.0.11.jar:?]  
at io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:501) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:440) ~[netty-all-4.1.49.Final.jar:4.1.49.Final]  
... 11 more

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<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [August 11, 2020, 3:52pm UTC](https://discuss.elastic.co/t/beats-can-not-connect-to-logstash/244584/2 "2020-08-11T15:52:33Z")

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This is not a logstash question, it is an elasticsearch question. If you move this thread to the elasticsearch forum you may find someone is willing to provide additional explanation of the error message.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 8, 2020, 3:53pm UTC](https://discuss.elastic.co/t/beats-can-not-connect-to-logstash/244584/3 "2020-09-08T15:53:06Z")

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