How to fix “A specified logon session does not exist. It may already have been terminated”



After changing my internal subnet I ran into an issue connecting to my NAS devices. Ofcourses I changed the IP addresses but on some devices I couldn’t reach them any longer.



After some “googling”I found that many more people have runned into this problem. Some of them found their solution in changing the Local Security Settings, Network access: Do not allow storage of passwords and credentials for network authentication. I had to change this to Disabled. (Using this option previous or old passwords are not used any longer, but I didn’t change the password so it had to be something else)


My solution was:

– Launch the “Credential Manager” in Windows 10 (search for it in the start menu)
– Open “Windows Credentials”
– Click “Add a Windows credential”



– Launch the “Credential Manager” in Windows 10 (search for it in the start menu)
– Open “Windows Credentials”
– Click “Add a Windows credential”
Internet or Network Address: \\servername (replace with the Netbios-name of your cloudstation, or use IP)
User name: servername\username (replace with netbios-name and the username you are connecting with)
Password: Self-explanitory
Delete old settings with the same IP address.

Altaro VM Backup

Review: Altaro VM Backup


I’m using Altaro VM Backup for my Hyper-V whitebox environment for a couple of years now.
Recently I tested the latest version. Hereby my experiences.

Their latest version of VM Backup changed in comparison to previous versions.
I noticed several new features/improvements and a slightly improved UI.


(Some of) Altaro VM Backup features:
– Built for virtual environments (both Hyper-V and VMware)
– Back up live VMs (Zero downtime by leveraging Microsoft VSS)
– Offsite Backup Replication
– File and Exchange item level restore
– Back up live VMs with no downtime
– Microsoft VSS Integration
– Support for Cluster Shared Volumes & vCenter
– Restore to different Hyper-V host or clones
– Central management console, management of multiple hosts
– Compression & Encryption
– Auto-upload Error Reports & Remote Support integration (Live Chat embedded)
– Offsite Backup Replication
– Altaro Offsite server (I shall update this post very soon with more information about this feature)

Altaro VM Backup 6.5 has been released adding the Change Block Tracking (CBT) feature for Hyper-V that gives the backups a speed boost of up to 33 times on incremental backups. Upgrading to the latest version is simple, go to the update download page in the user interface to download the update file. (Changed Block Tracking is conceptually similar to snapshot-technology. It determines if any blocks have changed since the last snapshot and tags the blocks that have been changed, to copy out only the blocks that have changed the last backup)

Altaro can be installed on a physical host or in a virtual machine. There is no Linux version (or OVF) available. (It would be nice to have that option although!) Configuring the program is very easy. In just a few steps you’re ready to go!

First configure the VMware or Hyper-V server (or vCenter), specify the IP settings and login creds and go to the following steps. Specify a back-up location, either a normal backup location (physical drive or network path) or a offsite location (either a physical drive, drive rotation or swap schema, network path of Altaro Offsite Server with WAN Acceleration). Configure the schedule, retention policy, the notifications and advanced settings (VSS, master encryption) You are all done configuring!

Now we are ready to back-up your virtual machines! Just 2 options, choose to take a backup or take a offsite copy.
Restoring the virtual machine is easy, you can use the default restore option or the granular option. With the granular restore you can specify specific files or folders to restore. It’s even possible to open an exchange edb file to restore specific exchange items (mail, calender items etc).



A nice option is, that it’s very easy to test your backups using the sandbox feature. Using this feature you can test your backup&restore in just a few steps. It does a complete restore in a virtual (sandbox) environment. So nothing happens with your running VMs. Using this method you can test the complete backup/restore procedure.

When you need support, there are several options:


You can use email and phone support, but a nice feature is the Live Chat support option. All the necessary information can easily be given to Altaro support so that they can help you. A very nice and unique feature!

If you are love security Altaro VM Backup give you the option to use an encryption key in your backups.
So in case of stolen your backups or any other scenario nobody can restore it if doesn’t has the encryption key.

Altaro built in al the reporting tools you need. In one overview you see your backup and restore results and actions.

Altaro comes with per-socket licensing and is as mentioned available in three editions:
– Unlimited Edition (all functionality for an unl. number of VMs and supports clusters, 585 dollar)
– Standard Edition (most functionality with protection of up to five VMs, 395 dollar)
– Free edition (protects up to two VMs)



Powershell: Start using PowerShell using PowerShell Command Builder


Microsoft TechNet site has a great site that enables you to build your own cmdlets using a web drag and drop interface.

There is support for :


Let’s try Office 365 :


You notice the drag and drop interface. First select the verb, for example Get. Click get and the send arrow. Now choose a Noun, for example Msol User:


After selecting the Verb and Noun you notice the other extra options. Fill them in when needed. Now hit the Copy to Clipboard button to copy the PowerShell command to your Clipboard and start using PowerShell to manage your Office 365.

You can find the site here.


Powershell: Connect to Azure Active Directory and Microsoft O365


Use the following Powershell script to connect to Azure Active Directory and Microsoft O365. This enables you to use all the O365 Powershell commands.

#Connecting to Exchange Online and Azure Active Directory

#This first command will import the Azure Active Directory module into your PowerShell session.
Import-Module MSOnline

#Capture administrative credential for future connections.
$credential = get-credential

#Establishes Online Services connection to Azure Active Directory  
Connect-MsolService -Credential $credential

#Creates an Exchange Online session
$ExchangeSession = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri -Credential $credential -Authentication Basic -AllowRedirection

#Import session commands
Import-PSSession $ExchangeSession




Tip : FranZ (Software)


A couple of weeks I’m using Franz. Franz is a portal for all your social media accounts, like Skype, Facebook Messenger, WhatsApp etc.


When you – like myself – use multiple cellphones, twitter accounts etc. it’s easy to open them all in the same window. For example, I have 2 whatsapp accounts, telegram, but also my private email in one view. I thank it’s a great solution for all those accounts. You don’t give the credentials to the Franz app although, you still authenticate to the (web)apps you normally login to. Franz is only a webportal/viewer.


Check it out here

And yes.. Franz is free. Glimlach


Office 365 : Disable Clutter (onbelangrijke mail) function


In this post I describe how to disable/enable the Clutter function of O365. The clutter feature is self learning and there are not many options you can specify. You can drag messages to and from the Clutter mailbox so that it can learn how to work. But sometimes you want do disable this function for specific mailboxes.

To disable Clutter for the entire organization you can use the following Powershell command:

Get-Mailbox | Set-Clutter -Enable $false

To disable Clutter for a single mailbox use the following command :

Set-Clutter -Identity helpdesk -Enable $false

To enable Clutter replace $false by $true




Remove accidental deletion protection



Use the following steps to remove the following error when you wish to delete an OU container:



Open Active Directory Users and Computers. Goto the specific OU. Open properties, security, advanced.


Remove the Deny Everyone access rule (first rule). Et voila, you’re good to go!


Office 365 Powershell: Delegate Calender rights


Use the following steps to delegate (Calender) rights to a specific user.

First step specify your (administrator) credentials:

$LiveCred = Get-Credential

Create the session:

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri -Credential $LiveCred -Authentication Basic –AllowRedirection

Now import the Office 365 session using the following command:

Import-PSSession $Session

Use the following command to delegate the calender from user1 to specified user2

Add-MailboxFolderPermission -Identity\calendar -user -AccessRights Editor


Et voilà! The calender rights are set.

FREE NFR Key for Veeam Availability Suite V9


Great news from my sponsor VEEAM. When you are a vExpert, MVP, VTEC Member, Certified Engineer and/or Trainer you have the option to receive a free NFR key (2 sockets) of the VEEAM Availability Suite V9. Click on their banner right of this page!


Howto : Backup to Azure with your Synology


Like many other people I use a Synology NAS for back-up purposes. All my backup data and other files is stored on the single device. But what when there is a problem with that device or your house (or office) is burned down to the ground. You won’t be able to gain access to your Synology and your data.

There are many (and I mean many!) services and (Cloud backup) providers who offer services to let you use their storage to backup to. Nice idea, great service. But…. not always very cheap. I have several Synology’s and many TB stored on them.

I tested several solutions and found out that backup to Azure was the right solution for me! In this blogpost I shall describe to few simple steps for you. You need 2 things:

  1. Synology Device
  2. Microsoft Azure Account (free trial available, go to

First step, we must create a storage account.


Ok, go through the following step to create a storage account :


Ok, you have to wait a few seconds for Microsoft to let that account be created. When the storage account is created you have to access the properties and go to Access Keys.


You need the Storage Account Name and the Access Key (KEY1 or KEY2) later.

Now go to your Synology. Ofcourse you are running the latest version and go to Hyper Backup.


Click the + button to add a back-up job.


Wow! We see the AZR Cloud already, let’s select that!


Fill in you Account name and copy/paste the contents of KEY1:


You have the option to backup some applications, let’s skip that.


Fill in the appropriate information and you are all done!

The costs are as follows :

  1. You pay 0,02 cent (euro) for every GB of storage
  2. When you back-up 20 TB, you pay approx 20 euro each month
  3. You only pay for storage and restoring, not for uploading.
  4. When you restore the entire 1 TB storage you pay 1x approx 72 euro
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