Just got started recently with Raspberry Pi 2.
One day 1, fired up RPi2, connected it to Laptop using Ethernet and did SSH to the device. I was also able to open up wpa_gui tool and see the listed WiFi networks. My WiPi dongle was working well and blue light flashing.
Today on Day 2 when I plugged in my WiPi, there is no Blue light, just one micro-second flash the moment it is plugged in and dead after that. "ifconfig" does show me wlan listed. wpa_gui shows nothing. Seems the dongle went dead.
pi@raspberrypi ~ $ iwconfig
wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dB Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off lo no wireless extensions. eth0 no wireless extensions.
pi@raspberrypi ~ $ sudo lsusb
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. Bus 001 Device 007: ID 148f:5370 Ralink Technology, Corp. RT5370 WirelessAdapter
Can someone help troubleshoot this?
NEW INFO: "dmesg" output on connecting WiFi Dongle:
[ 1402.128972] usb 1-1.5: new high-speed USB device number 5 using dwc_otg
[ 1402.246605] usb 1-1.5: New USB device found, idVendor=148f, idProduct=5370
[ 1402.246630] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1402.246647] usb 1-1.5: Product: 802.11 n WLAN
[ 1402.246664] usb 1-1.5: Manufacturer: Ralink
[ 1402.246680] usb 1-1.5: SerialNumber: 1.0
[ 1402.269406] ieee80211 phy1: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x1000 with error -19
[ 1402.269435] ieee80211 phy1: rt2800_probe_rt: Error - Invalid RT chipset 0xb9b3, rev faa8 detected
[ 1402.269453] ieee80211 phy1: rt2x00lib_probe_dev: Error - Failed to allocate device
[ 1402.270736] usb 1-1.5: USB disconnect, device number 5