DMM 34405A USB连接错误

您好，昨天我成功安装了所有安捷伦软件，并在我的桌面计算机上连接了DMM（win7 x64）。
Benchvue正在工作，但我无法使用安捷伦工具更新DMM固件：“工程师程序中设置的固件检查条件无效”我今天转到实验室，我重新安装了软件和我的笔记本电脑（win7 x64
）。
我无法在笔记本电脑上连接任何3 34405A（Windows外围设备管理器显示安装严重的IVI设备）固件更新工具和所有其他安捷伦软件都看不到任何设备。
在两台计算机上，在安捷伦连接专家中都有一个“更新驱动程序”按钮=>“无法访问安捷伦驱动程序信息网站......”任何想法？
谢谢



     以下为原文

  Hello,

Yesterday I sucessfully installed all agilent softwares and connected the DMM on my desktop computer (win7 x64). Benchvue was working but I wasn't able to update the DMM firmware with the agilent tool :

"firmware checking condition set in engineer program is invalid"

I move to the lab today, and I have reinstalled the softwares and my laptop computer (win7 x64). I cannot connect any of my 3 34405A on the laptop (windows periph manager shows a IVI device badly installed)

The firmware update tool and all other agilent softwares don't see any device.

On both computer, in agilent connection expert there is a "update driver" button => "the agilent driver information website could not be accessed..."

Any ideas?
Thank you