Fix-NLA/Test-InterfaceStatus.ps1 at main · AdaptiveTechnical/Fix-NLA · GitHub

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##########
# Test-InterfaceStatus.ps1
#
# A script to ensure that a given interface is in a given connection
# state, take action if it is not, and optionally restart a list of
# services if recovery actions had to be taken.
# Written for use by Adaptive Technical Inc.
#
# Copyright (C) 2025 Lance Hathaway
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
##########

#Requires -RunAsAdministrator

##########
# PARAMS
##########

param(
  [Parameter(Mandatory,
  HelpMessage="Indicates the monitored interface.")]
  [String]
  $MonitoredInterface,

  [Parameter(
  HelpMessage="Sets the target state for the interface's network category.")]
  [System.Management.Automation.ValidateSetAttribute("DomainAuthenticated","Private","Public")]
  [String]
  $TargetState = "DomainAuthenticated",

  [Parameter(
  HelpMessage="Indicates the desired recovery action for the network adapters.")]
  [System.Management.Automation.ValidateSetAttribute("Restart")]
  [String]
  $ResolutionAction = "Restart",

  [Parameter(Mandatory,
  HelpMessage="Enables service restart after connection recovery.")]
  [Switch]
  $RestartServices,

  [Parameter(Mandatory,
  HelpMessage="List of service names to restart.")]
  [String[]]
  $ServicesList
)

##########
# MAIN
##########

If ((Get-NetConnectionProfile -InterfaceAlias $MonitoredInterface).NetworkCategory -eq $TargetState){
  exit 0
}

If ($RestartServices -and (($null -eq $ServicesList) -or ($ServicesList.Count -eq 0))){
  exit 1
}

while ((Get-NetConnectionProfile -InterfaceAlias $MonitoredInterface).NetworkCategory -ne $TargetState) {
  switch ( $ResolutionAction ){
    "Restart" {
      Restart-NetAdapter -Name $MonitoredInterface
    }
  }

  Start-Sleep -Seconds 60
}

If ($RestartServices){
  ForEach ($service in $ServicesList){
    If ([string]::IsNullOrEmpty($service)){
      continue
    } Else {
      Restart-Service -Name $service
    }
  }
}