Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

可能的原因包括不允许空密码，登录时间限制，或强制的策略限制。

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To overcome the same-origin policy restriction, WebSphere Portal offers a solution that is based on a server-side HTTP proxy, the Ajax proxy layer.

为了克服相同来源的限制，WebSphere Portal 提供了一个基于服务器端的 HTTP 代理方案，也就是 Ajax 代理层。

youdao

Logon failure: user account restriction. Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

登录失败：用户帐户限制。可能的原因是不允许空白密码，登录时间限制，或限制政策已被强迫。

youdao

In order for a fiscal union to work, national governments including parliaments would have to give up the right to set taxes and determine public expenditure independently and accept a restriction of national sovereignty in other areas of economic and social policy.

FORBES: A Better Solution For The Euro Crisis: Europeanization Of Banking