Troubleshooting is a problem-solving process of evaluating faults that occur in a mechanical or electronic system. Steps often include recreating the problem and then trying alternative and creative solutions in order to fix the situation. Troubleshooting is deployed when software or hardware are rendering abnormal responses or remain unresponsive.

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Exchange 2010 SP3(single server)
Couple days ago Exchange stoped sending mails.
If I restart server everything is fine.
Troubleshooting the issue I found that my colleague updated server and installed NET framework 4.7.2.
I presume net framework is problem
What is the best way to uninstall net framework 4.7.2?
Become a Leader in Data Analytics
Become a Leader in Data Analytics

Gain the power to turn raw data into better business decisions and outcomes in your industry. Transform your career future by earning your MS in Data Analytics. WGU’s MSDA program curriculum features IT certifications from Oracle and SAS.  

Exchange 2010 stops sending and receiving messages after 8-9 hours. Suddenly, like 5 days ago, problem occured first time. I do not know where to start troubleshooting. After restart everything is OK for another 8-9 hours. Antivirus (ESET) uninstalled, but problem remains. Exchange 2010 with latest updates (updates were installed after problem appeared). OS W2008 with latest updates (automatic).

No error in event log seems to be clear and indicating any problem. Please advice where and how to start?

many thanks

Peplink Balance One router/ap unit reporting latency issues with wired/hard wired network devices.  need to perform direct to the cable modem first but I like to have access and documentation later for if and when I have to troubleshoot this unit.   The site seems to be lacking a manual nor is as easy as reaching the gateway IP to access the GUI.

Anyone familiar with access to this unit?  Does anyone spot the manual?  I sent a troubleshooting ticket a month ago to Peplink and they have yet to respond.  They don't even have one phone number on their site anywhere.
PDC [Windows Server 2012]
RDS [Windows Server 2008 R2]
Forest Function Level [2003]

Terminal Server Continually Losing Trust Relationship.
I am currently troubleshooting an environment where, on a daily basis, a terminal server is losing its trust with the domain.

The users are able to logon if the machine is removed and re-added to the domain, or if the PC account is reset.
However, this is not a solution in the long run, as we cannot manually reset the RDS server within AD daily.
All DNS settings appear to be correct.
Forwarders are properly added.
Both machines are looking to the PDC for DNS.
All networks are configured as domain.

RSOP confirms that there are no GPOs currently resetting any DNS settings.
There is a GPO that is set to specify the site name.

Included are the DCDIAG and REPADMIN /replsum outputs for analysis.
Any assistance would be great appreciated!



Directory Server Diagnosis

Performing initial setup:
   Trying to find home server...
   Home Server = [PDC]
   * Identified AD Forest.
   Done gathering initial info.

Doing initial required tests

   Testing server: Default-First-Site-Name\[PDC]
      Starting test: Connectivity
         ......................... [PDC] passed test Connectivity

Doing primary tests

   Testing server: Default-First-Site-Name\[PDC]
      Starting test: Advertising
Vmware ESXI host, 5.5.0, 1623387( is not responding suddenly.

Login to ILO and found purple error message and perform a cold restart to one of the ESXI host that issue. See attached screenshot.
Servers (Guest OS) all move to another ESXI host when auto failover.

How to retrieve ESXI log and read the log for easy troubleshooting?


Not able to run "regsrv32" from a Administrative Command prompt.   The error I'm receiving is "regsrv32 is not recogniozed as an internal or external command, operable program or batch file".

Please note: Troubleshooting Steps taken so far is
OS: Windows 2012 R2
Permission Level: Enterprise Admin

Visit the Environmental Variable
Select the System Variable>Path>"Made sure that the %Systemroot%\System32;%Systemroot%  is inserted correctly without any syntax errors by exporting to a notepad.

Made sure the Regsrv32 file was listed inside of the System32 directory.

Tried to use other command from the command prompt like net commands which worked fine.
Hi I am using exchange 2010 with outlook 2007/2010/2016

I ran Microsoft exchange troubleshooting Assistant on exchange 2010 and i got Mail submission failed: Error message: The SMTP host was not specified..

All my emails are flowing well in and out. There is just one thing one email was sent by one account to a group email and none of the users in that group have received it.

Any suggestions
CAn someone give me the troubleshooting steps to get a SAN DISC USB Flash drive to work. Here are the steps.

I have MacBook Pro 15-inch, 2016
I have a SanDisc USB Flash memory.
Plug it into a USB - USB-C adapter.

Anyway, when I open Finder it's not recognizing the chip.

So. I tried to close all applications and restarted the computer. Still nothing.

Very frustrating. Anything you recommend I do?
Hello Experts,
I need help troubleshooting an error I am getting in my WPF.Net application with C#.Net code-behind.

The error I get has to do with the OLEDB connection I am using to try to access and read an Excel (.xlsx) spreadsheet from my application (see error below):

The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.

Here is the code I use to try to access and read the Excel spreadsheet from within my application:
        OleDbConnection conProds;
        conProds = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + "C:\\Users\\gizmo\\Documents\\RR\\ISDQuoter\\Products.xlsx" + ";"); 

Open in new window

Please let me know how to fix this issue.

Thank you,
In trying to troubleshoot why we are having performance issues on our webserver, we pulled the web log files and I found several instances of cs-method = OPTIONS and our server
returned a sc-status of 405.  

Can someone explain what OPTIONS means and the 405 response?
The Lifecycle Approach to Managing Security Policy
The Lifecycle Approach to Managing Security Policy

Managing application connectivity and security policies can be achieved more effectively when following a framework that automates repeatable processes and ensures that the right activities are performed in the right order.

Hello, how can we tell what is is causing high load average? TOP has some processing using anywhere from 15-30 % CPU but none stays at 100% CPU.
I was updating the Comware for my HP A5120-48G-PoE+ EI switch. Its model number is JG237A. I deleted the old comware version with the command delete /unreserved flash:/....

I accidentally powered down the HP switch and turned it back on. It brought me to the boot menu. I displayed the files in flash and there was no comware boot software file in flash. I tried all the options necessary to get the new flash on the switch.

What else should I do?
Have issues connecting remotely to a computer IU see in the event log  Error event id 10010
The server {This if different in each log} did not register with DCOM within the required timeout.
Seams like this user experienced the same issue, but cannot follow the solution

Windows 10
I am setting up the Microsoft debugger tool and have difficult to set the path for the symbol file path.

Please help


Troubleshooting is a problem-solving process of evaluating faults that occur in a mechanical or electronic system. Steps often include recreating the problem and then trying alternative and creative solutions in order to fix the situation. Troubleshooting is deployed when software or hardware are rendering abnormal responses or remain unresponsive.