I'm using ubuntu 18.4. My system froze and did a reboot, since then my wifi is not working. I tried the solution suggested in this question but to no avail. I have dual boot with windows and it's not working in windows either. Here is the output sudo lshw -class network
*-network DISABLED description: Wireless interface product: WiFi Link 5100 vendor: Intel Corporation physical id: 0 bus info: pci@0000:01:00.0 logical name: wlp1s0 version: 00 serial: 00:26:c6:32:f9:0e width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-43-generic firmware=8.83.5.1 build 33692 latency=0 link=no multicast=yes wireless=IEEE 802.11 resources: irq:29 memory:d5600000-d5601fff *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:04:00.0 logical name: enp4s0 version: 02 serial: 00:26:9e:ab:16:9f size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:17 ioport:1000(size=256) memory:d2410000-d2410fff memory:d2400000-d240ffff memory:d3600000-d360ffff *-network description: Ethernet interface physical id: 2 logical name: enp0s29f7u2 serial: 0a:35:86:97:9f:c0 capabilities: ethernet physical configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.234 link=yes multicast=yes 
