Read timed out issue on engines start

 Hello,

we are trying to start engines in a new installation of Appian 18.3 on Windows Server 2016 but we are getting the below error:

java.net.SocketTimeoutException: Read timed out.

The complete log:

Starting Distributed Transaction Log
Executing command: '[cmd, /c, start, "Zookeeper", /min, "%JAVA_HOME%\bin\java.exe", -Xms128m, -Xmx256m, -Dzookeeper.log.dir=C:\appian\logs\service-manager\zookeeper, -Dzookeeper.root.logger=INFO,CONSOLE,ROLLINGFILE, -Duser.timezone=GMT, -cp, C:\appian\services\zookeeper-3.4.11\zookeeper-3.4.11.jar;C:\appian\services\zookeeper-3.4.11\lib\slf4j-log4j12-1.6.1.jar;C:\appian\services\zookeeper-3.4.11\lib\slf4j-api-1.6.1.jar;C:\appian\services\zookeeper-3.4.11\lib\netty-3.10.5.Final.jar;C:\appian\services\zookeeper-3.4.11\lib\log4j-1.2.16.jar;C:\appian\services\zookeeper-3.4.11\lib\jline-0.9.94.jar;C:\appian\services\zookeeper-3.4.11\lib\audience-annotations-0.5.0.jar;C:\appian\services\zookeeper-3.4.11\conf, org.apache.zookeeper.server.quorum.QuorumPeerMain, C:\appian\services\conf\zookeeper.properties]' in C:\appian\services\bin\..\zookeeper-3.4.11\bin with environment [:]
Starting QuorumPeerMain...
process QuorumPeerMain running
Zookeeper connected, root child count of [10]
QuorumPeerMain started in 2657 ms
Service Zookeeper successfully started
local Kafka broker 0 : (EndPoint(localhost,9092,PLAINTEXT)) : null registered in Zookeeper
Un-registering local broker id 0 from Zookeeper.
Executing command: '[cmd, /c, start, "Kafka Server", /min, cmd, /c, C:\appian\services\bin\..\kafka_2.11-0.10.1.1-appian-3\bin\windows\kafka-server-start.bat, C:\appian\services\bin\..\conf\kafka-server.properties, --override, log.dirs=C:\appian\services\bin\..\data\kafka-logs, --override, min.insync.replicas=1, --override, listeners=PLAINTEXT://localhost:9092, --override, zookeeper.connect=localhost:2181, --override, advertised.host.name=localhost, --override, advertised.port=9092, --override, broker.id=0, --override, zookeeper.connection.timeout.ms=40000, --override, zookeeper.session.timeout.ms=40000]' in C:\appian\services\bin\..\kafka_2.11-0.10.1.1-appian-3\bin\windows with environment [KAFKA_HEAP_OPTS:-Xms512m -Xmx1024m, KAFKA_OPTS:-Duser.timezone=GMT, LOG_DIR:C:\appian\logs\service-manager\kafka, CLASSPATH:, KAFKA_LOG4J_OPTS:-Dlog4j.configuration=file:///C:/appian/services/bin/../conf/kafka-log4j.properties]
Starting Kafka...
waiting for process Kafka
process Kafka running
local Kafka broker is not registered in Zookeeper
Waiting for local Kafka broker to be registered with Zookeeper
local Kafka broker is not registered in Zookeeper
Waiting for local Kafka broker to be registered with Zookeeper
local Kafka broker is not registered in Zookeeper
Waiting for local Kafka broker to be registered with Zookeeper
local Kafka broker is not registered in Zookeeper
Waiting for local Kafka broker to be registered with Zookeeper
local Kafka broker is not registered in Zookeeper
Waiting for local Kafka broker to be registered with Zookeeper
local Kafka broker 0 : (EndPoint(localhost,9092,PLAINTEXT)) : null registered in Zookeeper
Local Kafka broker is registered with Zookeeper...checking topics
Waiting for the following topics listed in Zookeeper to become available: List(serviceManager.transaction.notifications, serviceManager.transaction.download-stats, serviceManager.transaction.forums, serviceManager.transaction.groups, serviceManager.transaction.notifications-email, serviceManager.transaction.execution01, serviceManager.transaction.channels, serviceManager.transaction.portal, serviceManager.transaction.execution00, ds_txEffects, serviceManager.transaction.execution02, serviceManager.transaction.content, serviceManager.transaction.process-design, serviceManager.transaction.analytics02, serviceManager.exec.idblocks, serviceManager.transaction.analytics00, __consumer_offsets, serviceManager.transaction.analytics01)
Waiting for topic serviceManager.transaction.forums to be available
Topic serviceManager.transaction.forums available.
Waiting for topic serviceManager.transaction.notifications to be available
Topic serviceManager.transaction.notifications available.
Waiting for topic serviceManager.transaction.notifications-email to be available
Topic serviceManager.transaction.notifications-email available.
Waiting for topic serviceManager.transaction.channels to be available
Topic serviceManager.transaction.channels available.
Waiting for topic serviceManager.transaction.content to be available
Topic serviceManager.transaction.content available.
Waiting for topic serviceManager.transaction.download-stats to be available
Topic serviceManager.transaction.download-stats available.
Waiting for topic serviceManager.transaction.groups to be available
Topic serviceManager.transaction.groups available.
Waiting for topic serviceManager.transaction.portal to be available
Topic serviceManager.transaction.portal available.
Waiting for topic serviceManager.transaction.process-design to be available
Topic serviceManager.transaction.process-design available.
Waiting for topic serviceManager.transaction.analytics00 to be available
Topic serviceManager.transaction.analytics00 available.
Waiting for topic serviceManager.transaction.analytics01 to be available
Topic serviceManager.transaction.analytics01 available.
Waiting for topic serviceManager.transaction.analytics02 to be available
Topic serviceManager.transaction.analytics02 available.
Waiting for topic serviceManager.transaction.execution00 to be available
Topic serviceManager.transaction.execution00 available.
Waiting for topic serviceManager.transaction.execution01 to be available
Topic serviceManager.transaction.execution01 available.
Waiting for topic serviceManager.transaction.execution02 to be available
Topic serviceManager.transaction.execution02 available.
All topics accessible...local Kafka broker localhost:9092 successfully launched
Kafka started in 13161 ms
Service Kafka successfully started
Distributed Transaction Log Started
Deleting all files not modified in the last 30 days
Starting Service Manager
Executing command: '[cmd, /c, C:\appian\services\bin\..\lib\scripts\service-manager.bat]' in C:\appian\services\bin\..\lib\scripts with environment [JAVA_OPTS:-XX:MaxDirectMemorySize=8g -Xms64m -Xmx8g]
Waiting for Service Manager to launch
Service Manager started in 13751 ms
Starting forums
forums: Start initiated
Starting notifications
notifications: Start initiated
Starting notifications-email
notifications-email: Start initiated
Starting channels
channels: Start initiated
Starting content
content: Start initiated
Starting download-stats
download-stats: Start initiated
Starting groups
groups: Start initiated
Starting portal
portal: Start initiated
Starting process-design
process-design: Start initiated
Starting analytics00
analytics00: Start initiated
Starting analytics01
analytics01: Start initiated
Starting analytics02
analytics02: Start initiated
Starting execution00
execution00: Start initiated
Starting execution01
execution01: Start initiated
Starting execution02
execution02: Start initiated

Waiting for services to start...
execution00 in STARTING state, REPLICA mode
notifications-email in STARTING state, REPLICA mode
channels in STARTING state, REPLICA mode
execution02 in STARTING state, REPLICA mode
groups in STARTING state, REPLICA mode
execution01 in STARTING state, REPLICA mode
content in STARTING state, REPLICA mode
portal in STARTING state, REPLICA mode
notifications in STARTING state, REPLICA mode
process-design in STARTING state, REPLICA mode
download-stats in STARTING state, REPLICA mode
forums in STARTING state, REPLICA mode
analytics02 in STARTING state, REPLICA mode
analytics00 in STARTING state, REPLICA mode
analytics01 in STARTING state, REPLICA mode
Error running script: Read timed out
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:139)
at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:155)
at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:284)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261)
at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:165)
at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:167)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:272)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:124)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:271)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
at com.appian.komodo.cluster.client.ClusterRestClient.sendGet(ClusterRestClient.java:174)
at com.appian.komodo.cluster.client.ClusterRestClient.doGet(ClusterRestClient.java:127)
at com.appian.komodo.cluster.client.ClusterRestClient.doGet(ClusterRestClient.java:104)
at com.appian.komodo.cluster.client.ClusterRestClient.doGet(ClusterRestClient.java:86)
at com.appian.komodo.KomodoScriptRestClient.get(KomodoScriptRestClient.groovy:92)
at com.appian.komodo.KomodoScriptRestClient.get(KomodoScriptRestClient.groovy)
at com.appian.komodo.KomodoScriptRestClient.getManagerStatus(KomodoScriptRestClient.groovy:198)
at com.appian.komodo.KomodoScriptRestClient.engineStatusesList(KomodoScriptRestClient.groovy:170)
at com.appian.komodo.KomodoScriptRestClient.engineStatusesWithLeaderTransitionInfo(KomodoScriptRestClient.groovy:159)
at com.appian.komodo.StartKomodo.waitForAllEnginesToBeUp(StartKomodo.groovy:237)
at com.appian.komodo.StartKomodo.startEnginesAndWait(StartKomodo.groovy:181)
at com.appian.komodo.StartKomodo.run(StartKomodo.groovy:100)
at com.appian.komodo.KomodoScript.runWithExitCode(KomodoScript.groovy:96)
at com.appian.komodo.KomodoScript.executeNoExit(KomodoScript.groovy:117)
at com.appian.komodo.KomodoScript.execute(KomodoScript.groovy:132)
at com.appian.komodo.StartKomodo.main(StartKomodo.groovy:60)

Any ideas? 

Thanks!