ECONNREFUSED on getGroupMembershipForUser

[Balgorn]

Hi,

today I encountered an interesting problem. When using getGroupMembershipForUser it can occur that for some users the call results into the error "ECONNREFUSED". It seems to depend on the amount of groups a user has. I could track it down to ldap search function, where some of the group searches result in this error. Does anybody have an idea why this happens. For a quick fix i wraped my code in a retry loop:

Here my original code

let service = createActiveDirectory({  
        url: connectUrl(),  
        baseDN: process.env.BASE_DN || defaultConfig.ad.baseDN,  
        bindDN: process.env.BIND_DN,  
        username: process.env.SERVICE_USER,  
        password: process.env.SERVICE_PASS});
                attributes: {
            user: [ 'dn', 'userPrincipalName', 'objectGUID', 'givenName', 'initials', 'sn', 'mail' ],
            group: [ 'cn', 'description' ],
        },
service.getGroupMembershipForUser(user.dn, (err, groups) => {  
...  
});  

[CallSign-Filter]

I am having the same problem, it would be nice to get a fix for this