I get this during the mount

[juslintek]

==> linguobot-admin: Mounting NFS shared folders...
The following SSH command responded with a non-zero exit status.
Vagrant assumes that this means the command failed!

mount -o vers=3,udp,actimeo=1,nolock 192.168.10.1:/D/www/linguobot_admin /home/vagrant/Code/linguobot-admin
result=$?
if test $result -eq 0; then
if test -x /sbin/initctl && command -v /sbin/init && /sbin/init --version | grep upstart; then
/sbin/initctl emit --no-wait vagrant-mounted MOUNTPOINT=/home/vagrant/Code/linguobot-admin
fi
else
exit $result
fi

Stdout from the command:

Stderr from the command:

mount.nfs: Connection timed out

Using this script from homestead on Vagrant 1.9.0:

Vagrantfile:

# -*- mode: ruby -*-
# vi: set ft=ruby :

require 'json'
require 'yaml'

VAGRANTFILE_API_VERSION ||= "2"
confDir = $confDir ||= File.expand_path(File.dirname(__FILE__))

homesteadYamlPath = confDir + "/Homestead.yaml"
homesteadJsonPath = confDir + "/Homestead.json"
afterScriptPath = confDir + "/after.sh"
aliasesPath = confDir + "/aliases"

require File.expand_path(File.dirname(__FILE__) + '/scripts/homestead.rb')

Vagrant.require_version '>= 1.9.0'

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
    if File.exist? aliasesPath then
        config.vm.provision "file", source: aliasesPath, destination: "/tmp/bash_aliases"
        config.vm.provision "shell" do |s|
            s.inline = "awk '{ sub(\"\r$\", \"\"); print }' /tmp/bash_aliases > /home/vagrant/.bash_aliases"
        end
    end

    if File.exist? homesteadYamlPath then
        settings = YAML::load(File.read(homesteadYamlPath))
    elsif File.exist? homesteadJsonPath then
        settings = JSON.parse(File.read(homesteadJsonPath))
    else
        abort "Homestead settings file not found in #{confDir}"
    end

    Homestead.configure(config, settings)

    if File.exist? afterScriptPath then
        config.vm.provision "shell", path: afterScriptPath, privileged: false
    end

    if defined? VagrantPlugins::HostsUpdater
        config.hostsupdater.aliases = settings['sites'].map { |site| site['map'] }
    end
end

Homestead.yaml:

ip: 192.168.10.10
memory: 2048
cpus: 2
provider: virtualbox
mongodb: false
mariadb: false
postgresql: false
mysql: true
authorize: ~/.ssh/id_rsa.pub
keys:
    - ~/.ssh/id_rsa
folders:
    -
        map: 'D:\www\linguobot_admin'
        to: /home/vagrant/Code/linguobot-admin
        type: "nfs"
sites:
    -
        map: linguobot_admin.app
        to: /home/vagrant/Code/linguobot-admin/public
databases:
    - homestead
name: linguobot-admin
hostname: linguobot-admin

homestead.rb

class Homestead
    def Homestead.configure(config, settings)
        # Set The VM Provider
        ENV['VAGRANT_DEFAULT_PROVIDER'] = settings["provider"] ||= "virtualbox"

        # Configure Local Variable To Access Scripts From Remote Location
        scriptDir = File.dirname(__FILE__)

        # Prevent TTY Errors
        config.ssh.shell = "bash -c 'BASH_ENV=/etc/profile exec bash'"

        # Allow SSH Agent Forward from The Box
        config.ssh.forward_agent = true

        # Configure The Box
        config.vm.define settings["name"] ||= "homestead-7"
        config.vm.box = settings["box"] ||= "laravel/homestead"
        config.vm.box_version = settings["version"] ||= ">= 2.0.0"
        config.vm.hostname = settings["hostname"] ||= "homestead"

        # Configure A Private Network IP
        config.vm.network :private_network, ip: settings["ip"] ||= "192.168.10.10"

        # Configure Additional Networks
        if settings.has_key?("networks")
            settings["networks"].each do |network|
                config.vm.network network["type"], ip: network["ip"], bridge: network["bridge"] ||= nil
            end
        end

        # Configure A Few VirtualBox Settings
        config.vm.provider "virtualbox" do |vb|
            vb.name = settings["name"] ||= "homestead-7"
            vb.customize ["modifyvm", :id, "--memory", settings["memory"] ||= "2048"]
            vb.customize ["modifyvm", :id, "--cpus", settings["cpus"] ||= "1"]
            vb.customize ["modifyvm", :id, "--natdnsproxy1", "on"]
            vb.customize ["modifyvm", :id, "--natdnshostresolver1", settings["natdnshostresolver"] ||= "on"]
            vb.customize ["modifyvm", :id, "--ostype", "Ubuntu_64"]
            if settings.has_key?("gui") && settings["gui"]
                vb.gui = true
            end
        end

        # Configure A Few VMware Settings
        ["vmware_fusion", "vmware_workstation"].each do |vmware|
            config.vm.provider vmware do |v|
                v.vmx["displayName"] = settings["name"] ||= "homestead-7"
                v.vmx["memsize"] = settings["memory"] ||= 2048
                v.vmx["numvcpus"] = settings["cpus"] ||= 1
                v.vmx["guestOS"] = "ubuntu-64"
                if settings.has_key?("gui") && settings["gui"]
                    v.gui = true
                end
            end
        end

        # Configure A Few Parallels Settings
        config.vm.provider "parallels" do |v|
            v.name = settings["name"] ||= "homestead-7"
            v.update_guest_tools = settings["update_parallels_tools"] ||= false
            v.memory = settings["memory"] ||= 2048
            v.cpus = settings["cpus"] ||= 1
        end

        # Standardize Ports Naming Schema
        if (settings.has_key?("ports"))
            settings["ports"].each do |port|
                port["guest"] ||= port["to"]
                port["host"] ||= port["send"]
                port["protocol"] ||= "tcp"
            end
        else
            settings["ports"] = []
        end

        # Default Port Forwarding
        default_ports = {
            80 => 8000,
            443 => 44300,
            3306 => 33060,
            5432 => 54320,
            8025 => 8025,
            27017 => 27017
        }

        # Use Default Port Forwarding Unless Overridden
        unless settings.has_key?("default_ports") && settings["default_ports"] == false
            default_ports.each do |guest, host|
                unless settings["ports"].any? { |mapping| mapping["guest"] == guest }
                    config.vm.network "forwarded_port", guest: guest, host: host, auto_correct: true
                end
            end
        end

        # Add Custom Ports From Configuration
        if settings.has_key?("ports")
            settings["ports"].each do |port|
                config.vm.network "forwarded_port", guest: port["guest"], host: port["host"], protocol: port["protocol"], auto_correct: true
            end
        end

        # Configure The Public Key For SSH Access
        if settings.include? 'authorize'
            if File.exists? File.expand_path(settings["authorize"])
                config.vm.provision "shell" do |s|
                    s.inline = "echo $1 | grep -xq \"$1\" /home/vagrant/.ssh/authorized_keys || echo \"\n$1\" | tee -a /home/vagrant/.ssh/authorized_keys"
                    s.args = [File.read(File.expand_path(settings["authorize"]))]
                end
            end
        end

        # Copy The SSH Private Keys To The Box
        if settings.include? 'keys'
            settings["keys"].each do |key|
                config.vm.provision "shell" do |s|
                    s.privileged = false
                    s.inline = "echo \"$1\" > /home/vagrant/.ssh/$2 && chmod 600 /home/vagrant/.ssh/$2"
                    s.args = [File.read(File.expand_path(key)), key.split('/').last]
                end
            end
        end

        # Copy User Files Over to VM
        if settings.include? 'copy'
            settings["copy"].each do |file|
                config.vm.provision "file" do |f|
                    f.source = File.expand_path(file["from"])
                    f.destination = file["to"].chomp('/') + "/" + file["from"].split('/').last
                end
            end
        end

        # Register All Of The Configured Shared Folders
        if settings.include? 'folders'
            settings["folders"].each do |folder|
                if File.exists? File.expand_path(folder["map"])
                    mount_opts = []

                    if (folder["type"] == "nfs")
                        mount_opts = folder["mount_options"] ? folder["mount_options"] : ['actimeo=1', 'nolock']
                    elsif (folder["type"] == "smb")
                        mount_opts = folder["mount_options"] ? folder["mount_options"] : ['vers=3.02', 'mfsymlinks']
                    end

                    # For b/w compatibility keep separate 'mount_opts', but merge with options
                    options = (folder["options"] || {}).merge({ mount_options: mount_opts })

                    # Double-splat (**) operator only works with symbol keys, so convert
                    options.keys.each{|k| options[k.to_sym] = options.delete(k) }

                    config.vm.synced_folder folder["map"], folder["to"], type: folder["type"] ||= nil, **options

                    # Bindfs support to fix shared folder (NFS) permission issue on Mac
                    if Vagrant.has_plugin?("vagrant-bindfs")
                        config.bindfs.bind_folder folder["to"], folder["to"]
                    end
                else
                    config.vm.provision "shell" do |s|
                        s.inline = ">&2 echo \"Unable to mount one of your folders. Please check your folders in Homestead.yaml\""
                    end
                end
            end
        end

        # Install All The Configured Nginx Sites
        config.vm.provision "shell" do |s|
            s.path = scriptDir + "/clear-nginx.sh"
        end

        if settings.include? 'sites'
            settings["sites"].each do |site|
                type = site["type"] ||= "laravel"

                if (type == "symfony")
                    type = "symfony2"
                end

                config.vm.provision "shell" do |s|
                    s.name = "Creating Site: " + site["map"]
                    s.path = scriptDir + "/serve-#{type}.sh"
                    s.args = [site["map"], site["to"], site["port"] ||= "80", site["ssl"] ||= "443"]
                end

                # Configure The Cron Schedule
                if (site.has_key?("schedule"))
                    config.vm.provision "shell" do |s|
                        s.name = "Creating Schedule"

                        if (site["schedule"])
                            s.path = scriptDir + "/cron-schedule.sh"
                            s.args = [site["map"].tr('^A-Za-z0-9', ''), site["to"]]
                        else
                            s.inline = "rm -f /etc/cron.d/$1"
                            s.args = [site["map"].tr('^A-Za-z0-9', '')]
                        end
                    end
                end
            end
        end

        config.vm.provision "shell" do |s|
            s.name = "Restarting Nginx"
            s.inline = "sudo service nginx restart; sudo service php7.1-fpm restart"
        end

        # Install MariaDB If Necessary
        if settings.has_key?("mariadb") && settings["mariadb"]
            config.vm.provision "shell" do |s|
                s.path = scriptDir + "/install-maria.sh"
            end
        end

        # Install MongoDB If Necessary
        if settings.has_key?("mongodb") && settings["mongodb"]
            config.vm.provision "shell" do |s|
                s.path = scriptDir + "/install-mongo.sh"
            end
        end

        # Configure All Of The Configured Databases
        if settings.has_key?("databases")
            settings["databases"].each do |db|
                config.vm.provision "shell" do |s|
                    s.name = "Creating MySQL Database: " + db
                    s.path = scriptDir + "/create-mysql.sh"
                    s.args = [db]
                end

                config.vm.provision "shell" do |s|
                    s.name = "Creating Postgres Database: " + db
                    s.path = scriptDir + "/create-postgres.sh"
                    s.args = [db]
                end

                if settings.has_key?("mongodb") && settings["mongodb"]
                    config.vm.provision "shell" do |s|
                        s.name = "Creating Mongo Database: " + db
                        s.path = scriptDir + "/create-mongo.sh"
                        s.args = [db]
                    end
                end
            end
        end

        # Configure All Of The Server Environment Variables
        config.vm.provision "shell" do |s|
            s.name = "Clear Variables"
            s.path = scriptDir + "/clear-variables.sh"
        end

        if settings.has_key?("variables")
            settings["variables"].each do |var|
                config.vm.provision "shell" do |s|
                    s.inline = "echo \"\nenv[$1] = '$2'\" >> /etc/php/7.1/fpm/php-fpm.conf"
                    s.args = [var["key"], var["value"]]
                end

                config.vm.provision "shell" do |s|
                    s.inline = "echo \"\n# Set Homestead Environment Variable\nexport $1=$2\" >> /home/vagrant/.profile"
                    s.args = [var["key"], var["value"]]
                end
            end

            config.vm.provision "shell" do |s|
                s.inline = "service php7.1-fpm restart"
            end
        end

        # Update Composer On Every Provision
        config.vm.provision "shell" do |s|
            s.name = "Update Composer"
            s.inline = "sudo /usr/local/bin/composer self-update && sudo chown -R vagrant:vagrant /home/vagrant/.composer/"
            s.privileged = false
        end

        # Configure Blackfire.io
        if settings.has_key?("blackfire")
            config.vm.provision "shell" do |s|
                s.path = scriptDir + "/blackfire.sh"
                s.args = [
                    settings["blackfire"][0]["id"],
                    settings["blackfire"][0]["token"],
                    settings["blackfire"][0]["client-id"],
                    settings["blackfire"][0]["client-token"]
                ]
            end
        end
    end
end

[marcharding]

Looks like a firewall problem. Can you disable the windows firewall temporary and try again?

[juslintek]

All was disabled, ran cmd as Administrator and it worked. Strange, should work as user.

[hcanning]

Many years later if it helps other. Using Windows 11. Add exceptions for the winnfsd.exe files at C:\Users\[your-user-name]\.vagrant.d. Do a *.exe search in that directory. Specifically C:\Users\[your-user-name]\.vagrant.d\gems\3.1.3\gems\vagrant-winnfsd-1.4.0\bin\winnfsd.exe was the culprit for me using my Vipre Firewall.