# \#ldap
**URL:** https://community.auth0.com/tag/ldap/873.md
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## [AD LDAP Connector - error testing LDAP connectivity](https://community.auth0.com/t/ad-ldap-connector-error-testing-ldap-connectivity/41441)
**Author:** [@koenraad](https://community.auth0.com/u/koenraad)\
**Replies:** 1\
**Last updated:** [April 28, 2020, 12:07pm UTC](https://community.auth0.com/t/ad-ldap-connector-error-testing-ldap-connectivity/41441 "2020-04-28T12:07:54Z")
Hi all, Trying to set up AD LDAP Connector for a customer of ours, who is using Auth0. Our AD is multi-tenant, so we have a large hierarchy of OU’s. When I set the LDAP Base in the configuration to the OU of the custom…
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## [AD LDAP Connector on Azure VM: Cannot bind to LDAP](https://community.auth0.com/t/ad-ldap-connector-on-azure-vm-cannot-bind-to-ldap/7960)
**Author:** [@jng](https://community.auth0.com/u/jng)\
**Replies:** 1\
**Last updated:** [August 24, 2017, 3:10pm UTC](https://community.auth0.com/t/ad-ldap-connector-on-azure-vm-cannot-bind-to-ldap/7960 "2017-08-24T15:10:57Z")
I’m trying to test the AD LDAP Connector and have followed (mostly) the instructions here: https://auth0.com/docs/connector/test-dc The only difference is that I created a Windows Server 2016 Dataserver VM instead of Wi…
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## [Error when trying to authenticate automatically using LDAP](https://community.auth0.com/t/error-when-trying-to-authenticate-automatically-using-ldap/7897)
**Author:** [@muriukijoel](https://community.auth0.com/u/muriukijoel)\
**Replies:** 0\
**Last updated:** [August 19, 2017, 12:52am UTC](https://community.auth0.com/t/error-when-trying-to-authenticate-automatically-using-ldap/7897 "2017-08-19T00:52:02Z")
TypeError: First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object. at fromObject (buffer.js:262:9) at Function.Buffer.from (buffer.js:101:10) at new Buffer (buffer.js:80:17) at…