Wifi suddenly stopped. Tried many things need help.

[Hygieia]

i was using Linux Mint Cinnamon 18.3 yesterday when for no reason Wifi disappeared.
No options availble in network settings or network connections to join up to wifi.
Tried many things on other site then cam across this one. just in case I had made things worse I reintalled Linux 17.3
Have tried to follow advice on this site site:

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linux@linux-System-Product-Name ~ $ iwconfig
eth0      no wireless extensions.

eth1      no wireless extensions.

lo        no wireless extensions.

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rfkill list

Nothing

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linux@linux-System-Product-Name ~ $ inxi -nx
Network:   Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169 v: 2.3LK-NAPI port: d800 bus-ID: 02:00.0
           IF: eth0 state: down mac: bc:ae:c5:b8:86:d9

Im stuck and baffled and would love any help.
thx in advance

[kc1di]

Please enter this command in a terminal and post the output here:

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inxi -Fxz

Could be a few things, Have you upgrade the kernel lately?

[j8a]

Hi kc1di,
I would recommend you not to go back, specially when you could forward and install Mint 19. You could get a better support on the problem you posted.