Le 14/05/2016 07:50, Tim a écrit :
On Fri, 2016-05-13 at 11:12 +0200, François Patte wrote:
The issue now is about wifi connections and usb (!!)
If I plug an external usb harddrive, the wifi connection becomes awfull:
Important question: Is the USB harddrive externally powered?
Ed makes the point that the USB host may not handle powering the drive and the WiFi, very well, simultaneously.
I'll make the point that some externally power supplies are absolutely terrible, they can radiate a massive amount of electromagnetic interference.
I've had a couple that could knock an ADSL modem off-line if I plugged them into a computer, anywhere on the network, even in a different room. The drive just had to be connected, the system it was plugged into could be completely powered off. It just spewed crap everywhere. The modem would die off and stay unworkable.
I use both: HDD are not powered, but I sometimes use a hub to plug several HDD and the hub can be powered. But with or without external power supply, nothing changes!