Tried multiple cables, multiple PSU's, multiple systems in place of a PSU (laptop, workstation etc, etc); the only thing that's worked so far is the USB Y cable.drgeoff wrote:Try using a better PSU and/or cable feeding the RPi and see if the Y-cable can be dispensed with.
USA A -> Micro cables from Nexus 5, 7, Oneplusone phone devices.tpylkko wrote:what psu/cable are you using?
Prior to the Y cable, was using a 1M cable; it did not seem to matter whether the Pi2 was right next to or away from the WiFi adapter unfortunately, the only thing I can confirm is having the power draw from a separate source for the WiFi adapters has solved the issue now over 13hours of continuous operation. I've have the wifi adapter right on top of and far away from the Pi2 without issue in this configuration.obcd wrote:Could it be RF interference from the stick into the Pi electronics?
I had some issues with a Huawei 3G stick.
When I put a cable between the stick and the Pi, the problems went away.
Maybe your Y cable is doing the same and making the distance from the stick to the Pi larger decreasing possible interference.
No I had not, in the interestes for as full a test as I can carry with what I have here please note the following.gkreidl wrote:Assuming that your power supply + cable (!!!) really supply enough power without voltage loss, did you enable the usb high power mode
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