no access to wifi after updating dualboot on HP250 G5 NB

[robert]

Hi there,

I have install 16.04 LTS some month ago on a HP 250 G5 notebook.

Everything worked fine, but the dualboot was clumsy, as the user had to go into 
the bios each time booting the laptop to define what OS to boot.

So i used bootrepair to set up the grub such, that the user gets a grub screen 
to select the OS to boot from.

It was quiet some shuffling till I had all obstacles regarding UEFI restriction. 
But not the dualboot works as expected.


However, the LAN, bot wired and wifi behaves strangely.

1. WIFI: I can not find any WIFI interface. Although opening the connections 
dialog shows the 3 networks that were used before the dualboot upgrade was executed

2. the wired connection is always switch off after boot and has to be switched 
from the system settings


I tried to find out what wifi chip the pc is using with

lspci
00:00.0 Host bridge: Intel Corporation Device 5904 (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor 
Thermal Subsystem (rev 02)
00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI 
Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal 
subsystem (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI 
(rev 21)
00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller 
[AHCI mode] (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port 
(rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port 
(rev f1)
00:1f.0 ISA bridge: Intel Corporation Device 9d58 (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 
PCI Express Gigabit Ethernet Controller (rev 15)
02:00.0 Network controller: Intel Corporation Device 24fb (rev 10)

but none of devices listed seems to be a wifi controller.


can you please give me a hint

thanks

robert