# How to solve this login problem
**URL:** https://community.bluespice.com/t/how-to-solve-this-login-problem/315
**Category:** Bugs
**Created:** [June 26, 2025, 2:44pm UTC](https://community.bluespice.com/t/how-to-solve-this-login-problem/315 "2025-06-26T14:44:32Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Heather](https://community.bluespice.com/u/Heather)
#### Post date: [June 26, 2025, 2:44pm UTC](https://community.bluespice.com/t/how-to-solve-this-login-problem/315/1 "2025-06-26T14:44:32Z")
**Describe the issue / Steps to reproduce:**
Our company is using the software, however when we try to login, there is always the error reported
**Expected behavior:**
Normally after we input username and password which integrated with our company’s account, pages with different permissions will be displayed.
**What was the error message/error log?**
[4561762c9b9c91710a104812] /wiki/Special:PluggableAuthLogin MWException from line 169 of /var/www/bluespice/w/extensions/LDAPProvider/src/Client.php: Could not bind to LDAP: (49) Invalid credentials
Backtrace:
#0 /var/www/bluespice/w/extensions/LDAPProvider/src/Client.php(92): MediaWiki\Extension\LDAPProvider\Client-\>establishBinding()
#1 /var/www/bluespice/w/extensions/LDAPProvider/src/Client.php(331): MediaWiki\Extension\LDAPProvider\Client-\>init()
#2 /var/www/bluespice/w/extensions/LDAPAuthentication2/src/PluggableAuth.php(195): MediaWiki\Extension\LDAPProvider\Client-\>canBindAs()
#3 /var/www/bluespice/w/extensions/LDAPAuthentication2/src/PluggableAuth.php(62): MediaWiki\Extension\LDAPAuthentication2\PluggableAuth-\>checkLDAPLogin()
#4 /var/www/bluespice/w/extensions/PluggableAuth/includes/PluggableAuthLogin.php(30): MediaWiki\Extension\LDAPAuthentication2\PluggableAuth-\>authenticate()
#5 /var/www/bluespice/w/includes/specialpage/SpecialPage.php(600): PluggableAuthLogin-\>execute()
#6 /var/www/bluespice/w/includes/specialpage/SpecialPageFactory.php(635): SpecialPage-\>run()
#7 /var/www/bluespice/w/includes/MediaWiki.php(307): MediaWiki\SpecialPage\SpecialPageFactory-\>executePath()
#8 /var/www/bluespice/w/includes/MediaWiki.php(947): MediaWiki-\>performRequest()
#9 /var/www/bluespice/w/includes/MediaWiki.php(547): MediaWiki-\>main()
#10 /var/www/bluespice/w/index.php(53): MediaWiki-\>run()
#11 /var/www/bluespice/w/index.php(46): wfIndexMain()
#12 {main}
**System info:**
Product Version
MediaWiki 1.35.10 (aed5b1a)
07:18, 16 May 2023
PHP 8.0.28 (fpm-fcgi)
MariaDB 10.6.12-MariaDB-0ubuntu0.22.04.1
ICU 70.1
Lua 5.1.5
BlueSpice (Credits) 4.2.7 (build:20230516085453)
---
### Author:  [@rvogel](https://community.bluespice.com/u/rvogel)
#### Post date: [June 27, 2025, 5:57am UTC](https://community.bluespice.com/t/how-to-solve-this-login-problem/315/2 "2025-06-27T05:57:03Z")
Hello and welcome to the BlueSpice community forums!
The error message indicates that the wiki server can not connect to the LDAP/AD server. Possible reasons are:
1. No network connection - The wiki server can actually not establish a network connection to the LDAP/AD server, e.g. due to firewalls, subnetwork boundaries or similar.
2. No hostname resolution - In case you configured used a hostname rather than an IP in the `connection.server` section of the [domain config](https://www.mediawiki.org/wiki/Extension:LDAPProvider#Domain_config_settings) the wikiserver may just not be able to resolve it properly, due to DNS issues. You can test this by running `ping ` on the wikiserver CLI
3. Wrong username/password - Make sure `connection.user` and `connection.pass` are properly set. Be aware that `connection.user` needs to be a user DN
4. Other connection settings are wrong - Check settings e.g. regarding secure connection (`connection.enctype`)
How to troubleshoot?
1. Check if an LDAP connection can be established from the wikiserver to the LDAP server. E.g. use [`ldapsearch`](https://www.man7.org/linux/man-pages/man1/ldapsearch.1.html).
2. Enable [debug logging](https://www.mediawiki.org/wiki/LDAP_hub#Debugging) for the LDAP-Stack extensions to get more information
3. Use maintenance scripts like `extensions/LDAPProvider/maintenance/CheckLogin.php`, `extensions/LDAPProvider/maintenance/ShowUserInfor.php` and `extensions/LDAPProvider/maintenance/ShowUserGroups.php` to verify that the wiki can connect to the LDAP/AD server
You can also share your LDAP related config here. Just make sure to remove any sensitive data (usernames, passwords, …) beforehand.
Hope that helps!
EDIT: Actually the error message indicates that values of `connection.user` and `connection.pass` are not correct. Apparently it is no generic connection issue.