求救：ROS-2.9.27版->DDNS动态域名不成功!!No change!!

derekwen

我的ros版本是：2.9.27，在使用DDNS动态域名时动态无法更新！好烦啊~ 高手来帮下我完了这心愿吧~ 谢谢~!!!!!

:log info "DDNS: Begin"
:global ddns-user "用户名"
:global ddns-pass "密码"
:global ddns-host "dk2000.ddns.ms"
:global ddns-interface "外网网卡"
:global ddns-ip [ /ip address get [/ip address find interface=$ddns-interface] address ]
:if ([ :typeof $ddns-lastip ] = nil ) do={ :global ddns-lastip 0.0.0.0/0 }
:if ([ :typeof $ddns-ip ] = nil ) do={
  :log info ("DDNS: No ip address present on " . $ddns-interface . ", please check.")
} else={
  :if ($ddns-ip != $ddns-lastip) do={
    :log info "DDNS: Sending UPDATE!"
    :log info [ /tool dns-update name=$ddns-host address=[:pick $ddns-ip 0 [:find $ddns-ip "/"] ] key-name=$ddns-user key=$ddns-pass ]
    :global ddns-lastip $ddns-ip
  } else={
    :log info "DDNS: No change"
  }
}
:log info "DDNS: End"

试好好多次都是在 log 里显示 NO change，有没人能帮我解决这问题，实力是想不懂~ 如果知道问题出在哪里，请详细说明一下，谢谢!
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