Typical scenario, you download the VMware ISO file, then you burn to USB and in your mind you’re thinking, it will take me few minutes to install and configure the system and then I will be doing other stuff and then BAMMM ERROR:

No network adapters were detected. Either no network adapters are physically connected to the system, or a suitable driver could not be located. A third party driver may be required.
Ensure that there is at least one network adapter physically connected to the system before attempting installation. If the problem persists, consult the VMware Knowledge Base.

You received this error because your network card is not support by VMware vSphere and no network drivers are included in the ISO installation media for your network card. There is a good chance that your network card manufactured by company called Realtek.
If that the case in this tutorial I will show you from where to download community supported Realtek drivers and how to include those drivers into an image.
I would not recommend use this solution in a production environment, because if VMware do not support Realtek netwok cards there is a good reason why.
This solution for those who want to install vShpere in a lab environment without buying VMware supported network card.

Step 1- Download and Install PowerCLI from VMware website

https://my.vmware.com/web/vmware/details?downloadGroup=PCLI650R1&productId=614

Step 2 – Downlaod VMware vSphere Hypervisor (ESXi) Offline Bundle

Step 3 – Download Realtek EXI Community Package Tools

In my case I downloaded Net55-r8168 driver

https://vibsdepot.v-front.de/wiki/index.php/List_of_currently_available_ESXi_packages

Step 4 – Create a new directory and place all files

Create a new directory with any name, I named mine MVSourceCode and copy the script and downloaded files into newly created directory

VMware vSphere Hypervisor (ESXi) Offline Bundle
Realtek Offline Bundle Version 8.45.a
MVSourceCode.ps1 script (copy of the source)

You should have similar to the screenshot below:

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<#
	.NOTES
	Script name: MVSourceCode.ps1
	Created on: 20/09/2018
	Author: MVSourceCode
	
	.DESCRIPTION
	Script adds cummunity network drivers that are no longer supported by VMWARE and generate a new ISO bootable file
	Do not create EXI image for production use only for testing and lab environment
	
	MVSourceCode Blog Tutorial
    http://mvsourcecode.com/vmware-vsphere-esx-6-7-no-network-adapters-were-detected-either-no-network-adaptters-are-physically-connected-to-the-system/
	
#>

$mvFiles = Get-ChildItem *.zip
$mvDir = $mvFiles | Select -First 1 |  Select-Object -Property DirectoryName
$mvFullName = $mvFiles | Select -First 1 | Select-Object -Property FullName
$mvISOName = $mvDir.DirectoryName +"\MVSourceCodeEXI.ISO" 
$mvImageProfile = ""

#Seek Files in the current directory
if ($mvFiles.Count -eq 2){
Write-Host "Step1: " -ForegroundColor DarkCyan
    foreach($mvFile in $mvFiles){
        Write-Host "File was found: $mvFile" -ForegroundColor Green 
        Add-EsxSoftwareDepot $mvFile | Select -Property FullName

}

#Determine correct standard exi image profile
   $EXIProfile = Get-EsxImageProfile  | Where-Object Name -like '*-standard' 
       if($EXIProfile[0].Name.Length -ge $EXIProfile[1].Name.Length){
            $mvImageProfile =  $EXIProfile[1].Name
       }
       Else{
            $mvImageProfile =  $EXIProfile[0].Name
       }
Write-host Write-Host "Step2: " -ForegroundColor DarkCyan
Write-Host "EXI Image Profile: $mvImageProfile" -ForegroundColor Green

Write-host Write-Host "Step3: " -ForegroundColor DarkCyan
Write-Host "Start Clonning EXI Image Profile" -ForegroundColor Green

#Clone EXI image profile    
    New-EsxImageProfile -CloneProfile $mvImageProfile -Name "MVSourceCode" -Vendor "MVSourceCode"

Write-host Write-Host "Step4: " -ForegroundColor DarkCyan
Write-Host "Set AcceptanceLevel for CommunitySupport" -ForegroundColor Green

#Set AcceptanceLevel for CommunitySupport
    Set-EsxImageProfile -Name "MVSourceCode" -AcceptanceLevel CommunitySupported -ImageProfile "MVSourceCode"

Write-host Write-Host "Step5: " -ForegroundColor DarkCyan
Write-Host "Add Realtek software package into Software package" -ForegroundColor Green
Write-Host " "
#Add Realtek software package into Software package
    $package = Get-EsxSoftwarePackage | Where-Object Vendor -EQ "Realtek" | select Name
    Add-EsxSoftwarePackage -ImageProfile "MVSourceCode" -SoftwarePackage $package.Name

Write-host Write-Host "Step6: " -ForegroundColor DarkCyan
Write-Host "Exporting ISO image $msISOName" -ForegroundColor Green
#Export ISO image to current directory
    Export-EsxImageProfile -ImageProfile "MVSourceCode" -ExportToIso -FilePath $mvISOName

}

Step 5 – Open PowerCLI and run the Script

Right-click on PowerCLI icon and select Run as Administrator. Then you get terminal window change directory to were all your files are located and the run the script

Change directory – cd c:\Temp\MVSourceCode

Execute the script – .\MVSourceCode-image.ps1

In the script output now you should see steps of execution, if no error you should have all lines green and an ISO file created in the same directory.

At this stage you can burn the image onto USB drive, or boot on Virtual machine.

VMware vSphere ESX 6.7 | No network adapters were detected. Either no network adaptters are physically connected to the system ..

Step 1- Download and Install PowerCLI from VMware website

Step 2 – Downlaod VMware vSphere Hypervisor (ESXi) Offline Bundle

Step 3 – Download Realtek EXI Community Package Tools

Step 4 – Create a new directory and place all files

Step 5 – Open PowerCLI and run the Script

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