My Jenkins version 2.116; remote Jenkins version 2.66.  At first I configured the remote job call in my jenkins master ( you can see on a screen JenkinsJob.png). After I wrote a function in pipeline: 

void runIntegrationTests()

{ def handle = triggerRemoteJob(remoteJenkinsName: 'AFT_Desk', job: 'AFTDesk_RunTM_Allure_NDO', parameters: 'TESTMODEL_ID=46') }

I have also configured remote jenkins job (screen RemoteJenkins1.png, RemoteJenkins2.png, RemoteJenkins3.png). 

Then I run my jenkins pipeline and got this error:

 
################################################################################################################
http://jenkins-rc.moscow.alfaintra.net:8080/blue/organizations/jenkins/cashrequest-ui/detail/feature%2FRCNDO-343/113/pipeline#step-58-log-2 Parameterized Remote Trigger Configuration:
 - job: AFTDesk_RunTM_Allure_NDO

 - remoteJenkinsName: AFT_Desk

 - parameters: [TESTMODEL_ID=46]

 - blockBuildUntilComplete: true

 - connectionRetryLimit: 5

 ################################################################################################################

  
http://jenkins-rc.moscow.alfaintra.net:8080/blue/organizations/jenkins/cashrequest-ui/detail/feature%2FRCNDO-343/113/pipeline#step-58-log-9Connection to remote server failed , waiting for to retry - 10 seconds until next attempt. URL: http://ltjenkins:8080/job/MDMi_Pipeline/job/NDO/job/AFTDesk_RunTM_Allure_NDO/api/json, parameters:
Retry attempt #1 out of 5

 

 
http://jenkins-rc.moscow.alfaintra.net:8080/blue/organizations/jenkins/cashrequest-ui/detail/feature%2FRCNDO-343/113/pipeline#step-58-log-11Connection to remote server failed , waiting for to retry - 10 seconds until next attempt. URL: http://ltjenkins:8080/job/MDMi_Pipeline/job/NDO/job/AFTDesk_RunTM_Allure_NDO/api/json, parameters:
Retry attempt #2 out of 5

 Connection to remote server failed , waiting for to retry - 10 seconds until next attempt. URL: http://ltjenkins:8080/job/MDMi_Pipeline/job/NDO/job/AFTDesk_RunTM_Allure_NDO/api/json, parameters:

 Retry attempt #3 out of 5

Connection to remote server failed , waiting for to retry - 10 seconds until next attempt. URL: http://ltjenkins:8080/job/MDMi_Pipeline/job/NDO/job/AFTDesk_RunTM_Allure_NDO/api/json, parameters:

Error: 

org.jenkinsci.plugins.ParameterizedRemoteTrigger.exceptions.ExceedRetryLimitException: Max number of connection retries have been exeeded.

Help me to find reason of this error..((