diff --git a/upload/source/admincp/admincp_login.php b/upload/source/admincp/admincp_login.php
index a1b1a1e9bd20b130ca7629f5b82f6a85ac8b9ae0..7568c19a53cfa68ac357198b4a6e6116f4399374 100644
--- a/upload/source/admincp/admincp_login.php
+++ b/upload/source/admincp/admincp_login.php
@@ -156,6 +156,11 @@ EOT;
 		</select>
 		<input type="text" name="admin_answer" class="loginqa" placeholder="{$lang['security_answer']}" autocomplete="off">
 		<button type="submit">{$lang['submit']}</button>
+EOT;
+	if (!empty($_G['admincp_checkip_noaccess'])) {
+		echo  '<br><span>'.lang('admincp_login', 'login_ip_noaccess').'</span>';
+	}
+	echo <<<EOT
 		</form>
 EOT;
 }
diff --git a/upload/source/class/discuz/discuz_admincp.php b/upload/source/class/discuz/discuz_admincp.php
index 6d323e3ef5c6f7525102494b2ed7c71e224fc33d..72137ff5060cdfc8d0f82c5913c4a44475f24a1c 100644
--- a/upload/source/class/discuz/discuz_admincp.php
+++ b/upload/source/class/discuz/discuz_admincp.php
@@ -101,6 +101,7 @@ class discuz_admincp
 
 			} elseif ($this->cpsetting['checkip'] && ($session['ip'] != $this->core->var['clientip'])) {
 				$this->cpaccess = 1;
+				$_G['admincp_checkip_noaccess'] = 1;
 
 			} elseif ($session['errorcount'] >= 0 && $session['errorcount'] <= 3) {
 				$this->cpaccess = 2;
diff --git a/upload/source/language/lang_admincp_login.php b/upload/source/language/lang_admincp_login.php
index b7627db35edcba4675c1dd6e86770fcf069a692e..ac853034029f4256bcc888c352a6e427ea896a25 100644
--- a/upload/source/language/lang_admincp_login.php
+++ b/upload/source/language/lang_admincp_login.php
@@ -43,6 +43,7 @@ $lang = array
 	'login_cplock' => '您的管理面板已经锁定！<br>请在<b> {ltime} </b>秒以后重新访问管理中心。',
 	'login_user_lock' => '由于您的登录密码错误次数过多，本次登录请求已经被拒绝。请 15 分钟后重新尝试。',
 	'login_cp_noaccess' => '<b>管理中心(或此项操作)尚未对您开放</b><br><br>您的此次操作已经记录，请勿非法尝试',
+	'login_ip_noaccess' => '<a href="https://www.dismall.com/thread-17514-1-1.html" target="_blank">IP变动可能导致登录失败，查看解决办法</a>',
 	'noaccess' => '后台管理权限(或此项操作)尚未对您开放，请联系站点管理员',