Ubuntu 23.04 无法加入私有网络AD域的问题求助

各位好，我在私有网络里搭了一台AD服务器，Windows电脑都能顺利加入域，但我的Ubuntu 23.04客户端尝试加入的时候却报错，谷歌搜了半天也没找到能解决问题的方向，想请大家帮忙看看。

我执行的命令是：

sudo realm join -U -v Administrator sb.lan

命令执行后的输出如下：

• Resolving: _ldap._tcp.sb.lan
• Performing LDAP DSE lookup on: 172.19.0.2
• Performing LDAP DSE lookup on: 192.168.1.100
• Successfully discovered: sb.lan
  Password for Administrator:
• Unconditionally checking packages
• Resolving required packages
• LANG=C /usr/sbin/adcli join --verbose --domain sb.lan --domain-realm SB.LAN --domain-controller 192.168.1.100 --login-type user --login-user Administrator --stdin-password
• Using domain name: sb.lan
• Calculated computer account name from fqdn: LEGION
• Using domain realm: sb.lan
• Sending NetLogon ping to domain controller: 192.168.1.100
• Received NetLogon info from: dc.sb.lan
• Wrote out krb5.conf snippet to /var/cache/realmd/adcli-krb5-2BPZfj/krb5.d/...

备注：内容来源于stack exchange，提问作者bas