"Connection closed while SSL/TLS handshake was in progress" Failing after migrating the service in Azure #1091

I see similar error after migrating the service in Azure. Firewall opened for outbound to api.push.apple.com, not sure why we don't see any traffic after DNS is resolved. Can you please advise if there any resolution on this?

nioEventLoopGroup-2-1 | c.t.p.a.ApnsChannelFactory | | | Tried to mark promise as "failed," but it was already done. java.nio.channels.ClosedChannelException: null at io.netty.handler.ssl.SslHandler.channelInactive(SslHandler.java:1150) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:305) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1405) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:301) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:901) at io.netty.channel.AbstractChannel$AbstractUnsafe$7.run(AbstractChannel.java:813) at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:566) at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.base/java.lang.Thread.run(Thread.java:829) Suppressed: io.netty.handler.ssl.StacklessSSLHandshakeException: Connection closed while SSL/TLS handshake was in progress at io.netty.handler.ssl.SslHandler.channelInactive(Unknown Source)

2024-11-20 16:42:50,640 | DEBUG | nioEventLoopGroup-2-1 | i.n.r.dns.DnsNameResolver | | | [id: 0xae756d38] RECEIVED: UDP [7263: /172.25.0.10:53], DatagramDnsResponse(from: /172.25.0.10:53, to: /0:0:0:0:0:0:0:0:47575, id: 7263, QUERY(0), NoError(0), RD RA) DefaultDnsQuestion(api.push.apple.com. IN A) DefaultDnsRawRecord(api.push.apple.com. 19 IN CNAME 34B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(api-vs.push-apple.com.akadns.net. 19 IN A 4B) DefaultDnsRawRecord(OPT flags:0 udp:4096 0B)