HP 840 G4 LAN/WLAN Switching and Conexant HD Audio Driver

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Hi, I am in trouble with  HP 840 G4 business notebook.
I should to troubleshoot 5 problems..


The operating System is Windows 10 64 bits.
The BIOS version is 01.16 Rev.A Apr 9, 2018


1 LAN/WLAN Switching  doesn't work with and without docking station 2013 ultraslim.
Which drivers of LAN and WLAN cards I have to use?
And which version of HP Hotkey Support I should to use?

2 The lastest Conexant HD Audio Driver, doesn't work 11.49.3109.105 Rev.Q  Apr 25, 2018 

3 If I try this version of Conexant HD Audio Driver 11.47.2307.74 Rev.Q  Jul 24, 2017 the audio is work, but now after reboot system I see this error  "Error occured. Flow will not shut down" But the audio is work....

4 Grapchic card "Intel Video Driver and Control Panelsystem software Manager" for Intel HD 620, version 
15.65.5018 Rev.WK Apr 27, 2018 doesn't work...
I tried Version: 24.20.100.6025 (Latest) Date: 4/26/2018 from intel web site win64_24.20.100.6025.zip and  manually I installed it and now I don't have problem with GPU.

 5 Other HP 840 G4, with BIOS version 01.14 Rev.A Jan 23, 2018 can't be charged with docking station 2013 ultraslim?
But I replaced it with 90 Watt charger and I solve the problem, 65 watt is the original.

Which version of drivers I have to use?

Which version of firmware for 2013 ultra slim docking station I should to run?

And how to do the best combination of drivers to get the best performance of device ?

Note:
The HP 840 G4 is with Trend Micro Agent and with Trend Micro FDE (Full Disk Encryption)

I did see and other problems with Edge, IE and Google Chrome,  they just crashed or don't want to download files.
But now these problems with browsers don't apears after change of drivers for VIDEO and AUDIO....