Ubuntu Mate 16.04 Wifi Networks greyed out and disabled

Hi,

I have already tried to do what you have suggested - without any luck…
I have already downloaded the manual and looked at the wifi stuff…no
joy!

I have enabled and re-enabled the connection in XP’s network manager, I
have installed the Intel Proset Utility and it has reported that a
driver is not installed, so I had opened up the Device Manager and the
intel wifi dedvice looked fine (no re or yellow icons by it) - the Intel
utility still reports that a driver is not installed, which seems odd. I
have removed, installed and reinstalled the Intel 2100 b mini
driver…still no change. However as soon as I plug in the TL-WN725N
wifi adapter I have wifi connectivity with XP… sadly this is not the
case in Mate…- which reports that both the usb wifi and onboard
wifi are disabled.

As you have probably gathered I am somewhat confused by Mate, first time
in several years of use that I have had any issues with Ubuntu,and very
new to it all.

I have noticed that since installing Ubuntu Mate I have been getting
error messages when I boot:

[drm:intel_set_cpu_fifo_underrun_reporting [i915]] ERROR pipe A underrun

and

[drm:intel_cpu_fifo_underrun_irq_handler [i915]] ERROR CPU pipe B FIFO
underrun

These two messages were highlighted in the output from ‘dmesg’ …
could it possibly have any

relevance.

I have ‘googled’ them but regrettably what I found didn’t really mean
much to me.

I regret my input is somewhat foggy but I’m trying hard!

Too prevent you using up too much precious time I will say that maybe
try one more suggestion then I will try to revert to using ubuntu 32 bit
with gnome metacity as that worked fine before (for over two years
without a hiccup!)

Best regards…