no wireless connection, wlan0 and eth0 devices not found

on my 3rd day on Ubuntu 16.04 (which I love) wifi connection suddenly disappeared: here i post some diagnostics in advance.

lspci:

Code:

0:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
00:1c.6 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #7 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM87 Express LPC Controller (rev 05)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev a1)
07:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe
07:00.1 Bluetooth: Ralink corp. RT3290 Bluetooth
09:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)
0f:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)

iwconfig

Code:

lo        no wireless extensions.

wlo1      IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          
eno1      no wireless extensions.

Code:

buoncri@buoncri-HP-ENVY:~$ sudo ifconfig wlan0 up
wlan0: ERROR while getting interface flags: No such device
buoncri@buoncri-HP-ENVY:~$ sudo ifconfig eth0 up
eth0: ERROR while getting interface flags: No such device

and at last I tried this:

Code:

buoncri@buoncri-HP-ENVY:~$ dmesg | grep -e wlan -e b43
[    5.259831] rt2800pci 0000:07:00.0 wlo1: renamed from wlan0

I sense there's something wrong here, but i'm really new and i really don't know. Thanks in advance

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no wireless connection, wlan0 and eth0 devices not found