Hi, i bought an alfa wifi adapter with realtek rtl8187 moderboard, when i plug it to computer using 10 meters usb cable it show me the message: usb device not recognized. but it appear on Device manager and wifi management softwares (but no wifis shown) .
but when i plug it to other cables (5meters and lower) it work without problems .
what is the problem please ? this cable was workin great with my old alfa with the ralink moderboard !
thank's in advance
mouaadable 0
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Jump to PostThat's beyond the distance we expect USB to function. Yes it might work with say an older device if said device was different in any way (USB 1 vs 2?)
To fix this I'd try those "10 Meter (32 Foot) USB 2.0 Active Extension Cable" versus a simple cable.
Jump to PostYou're falling for the old trap that old worked, why not new. That is, it's beyond the USB spec and as such can be hit or miss. I don't see if you tried an active cable.
Jump to PostA USB cable that is more than 10 feet long (3+ meters) is going to be dicey at best. The fact that it worked with your old WiFi gear was luck. 5 meters (15 feet) is already getting to the limits of the tech for unaugmented (non-active) cables.
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