I have an RPI Model 2B running Raspbian that works (almost) perfectly.
I recently bought a TP-LINK WN725N V2.0 that I thought would work if I followed the instructions listed here. However, when I use the
lsusb command, I don't see the WiFi dongle listed. I though it could be because I booted the RPI with the WiFi dongle attached, so I booted it without the dongle, and then attached it when it was booted. The rainbow thing in the top right corner appears, and the RPI freezes. I try typing, but the text lags about 10 minutes behind my key strokes. After what seems like an eternity of waiting, the RPI finally becomes responsive, but I still don't see the dongle when I type in the
Could this be an issue with the RPI or the dongle? Is the RPI not receiving enough power? If that's the case can you please recommend a cheap but reliable power supply I can purchase?
I should probably mention (not sure if this is important) that connecting to the internet via ethernet works perfectly.