Category Archives: Operating System

CredSSP Encryption Oracle Remediation Error – Remote Desktop Connection

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Word of Caution: This article contains a procedure to edit/change Windows Registry. Please take necessary precaution before attempting this.

I received an error this morning while trying to connect to one my clients’ server. The message as follows:

Screen Shot 2018-05-10 at 09.45.07.png

With the help of one of my contacts at the client site, also upon searching and following the link provided in the message itself, couple of help pages stood out:

  1. CredSSP updates for CVE-2018-0886
  2. CredSSP encryption oracle remediation

For those who would like to see the solution immediately without having to go through the details from above links, I shall brief the solution itself here.

There are basically two solutions:

  1. Run “Windows Update” on the remote server (or the workstation) to which you are trying to connect. This will ensure that you have the latest patch on the remote box and you wouldn’t be facing this issue again. This would work provided your machine also has got the latest updates applied.
  2. For those who cannot update the remote box for some reason(s), you would have to create a new registry entry as shown below:

Screen Shot 2018-05-10 at 14.24.19.png

Once above registry key is created, you must restart your workstation / client / computer without fail.

All good now to successfully connect to the remote box again.

A note of thanks to Dave.

Vaidy

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Windows 10 Creator Update & Dynamics GP

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An interesting issue/question was posted on our community forum regarding an error message popping up while exiting GP2015 R2 & GP2016 R2.

Specifically, GP2015/2016 R2 on Windows 10 Creator Update is what seems to be throwing this error while exiting.

Link to original forum post: Windows 10 Creator and GP2015 R2

One member, Ron Koendrink, figured out that it’s Mekorma MICR that’s causing this issue on his environment. Per his update, Mekorma had confirmed that it’s an issue for which a fix was available.

Anyone out there who use Mekorma MICR and planning to upgrade your OS to Windows 10 Creator Update, please contact them and get the fix.

A note of thanks to Ron.

Vaidy

Windows 10 .Net 3.5 Framework Installation Bummer: Error Code 0x800F081F

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This one’s another issue that was eating my brain for the past 2 days. Little bit if story first.

I have a Windows 10 Pro virtual machine on my MacBook Pro. Things went well until I tried installing SQL Server 2014 Express, which required .Net Framework 3.5. .Net 3.5 is built-in and we need to enable it from “Turn Windows Features On or Off”.

That’s where the bummer was. I could not turn .Net 3.5 on at all. Following was the error message that I was getting:

DotNet35Error

That “Tell me how to solve this problem” takes you to this link: .NET Framework 3.5 installation error: 0x800F0906, 0x800F081F, 0x800F0907.

Unfortunately, for me, this post did nothing other than wasting my 10 minutes of time. Surfing about this error further led me to this post: Offline install of .NET Framework 3.5 in Windows 10 using DISM.

This post discuss about a workaround, but the ONLY working workaround. Below is a screenshot of how this works:

Screen Shot 2015-09-18 at 8.38.25 AM

I could then install/enable .Net 3.5 Framework on my VM and continue with GP installation.

Happy troubleshooting.

VAIDY

GP Web Client: Rendering Issue – Some Facts

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Almost a month back, I had posted my GP web client test drive results on how the client is rendered on Mac based browsers and possible issue with Silverlight plugin. I am probably wrong.

Everything works other than pictures; that’s what I had found. Upon drilling down further, what I realised is that it sounds obvious that it doesn’t work on Mac based browsers. Reason: Native Pictures.

Definition of Native Picture says following:

Snip20131230_12

Consider, for instance, the following snapshot of GP login window on a web client rendered on Mac Safari:

Snip20131230_10

It’s not shown. Initially I thought it was something to do with Silverlight rendering. But not exactly. It’s because, this picture is a Native Picture. And by definition, it’s specific to Windows OS. Look at this picture definition below:

Snip20131230_9

Apparently, by nature, it’s NOT supposed to show up on any OS other than Windows.

It’s not just this picture. Lookup Button icons, Note icons are all Native Picture types. And due to that, they are not going to render on any other OS. And if I am not mistaken, this will remain as it is at least till next major version of GP.

Those who implement GP web client MUST be aware of this.

VAIDY

OFF-TOPIC: Show Hidden Files & Folders in Mac OS X Mavericks

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I had been struggling with this for sometime. I wanted to create a USB installer for Mavericks and was not able to get thru’ a step where I had to show hidden files and folders.

In Windows OS, it’s a simple step which is available graphically to either show or hide hidden files and folders. But in Mac OS X, for some reason, this has to be achieved by typing a command on Terminal. Following is the command that is required to enable showing hidden files and folders:

defaults write com.apple.finder AppleShowAllFiles TRUE
killall Finder

So, those who struggle to get it done, above is your key to unlock this.

VAIDY

OFF TOPIC: Why I can’t use the File Sharing wizard?

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Alright… Another off-topic one, but is worth sharing. This post again shows how much Customers are aware about technology and go that extra mile to get educated on systems/software that they use.

The Old New Thing has got a post which explains a flaw in Windows Vista (yeah I can hear you yelling at me as soon as you heard that word) and Windows Server 2008, but got fixed in Windows 7 (are you OK now?) and Windows Server 2008 R2.

The post is about why you can’t use File Sharing wizard if you exclude inheritable permissions from a folder’s parent.

Just in case, people are wondering why this thing never work on Windows Vista (ok ok, that’s the last time I would utter that word) and Windows Server 2008, you have one more reason to dump *you know what*.

VAIDY