How to Solve “Workgroup is Not Accessible” and “Specified server cannot perform the requested operation”

Problem: These 2 error messages will pop-up when trying to connect to a Windows 7 PC from Windows XP PC.

Solution: need to perform 2 settings on both Windows 7 PC and Windows XP PC.

  1. refer to

    1. Step 1: Enable NetBIOS over TCP/IP
      1. Click Start, click Control Panel, and then click Network and Internet Connections.
      2. Click Network Connections.
      3. Right-click Local Area Connection, and then click Properties.
      4. Click Internet Protocol (TCP/IP), and then click Properties.
      5. Click the General tab, and then click Advanced.
      6. Click the WINS tab.
      7. Under NetBIOS setting, click Enable NetBIOS over TCP/IP, and then click OK two times.
      8. Click Close to close the Local Area Connection Properties dialog box.
      9. Close the Network Connections window.
    2. Step 2
      1. Click Start, right-click My Computer, and then click Manage.
      2. Double-click Services and Applications.
      3. Double-click Services.
      4. On the right side, right-click Computer Browser, and then click Start.
      5. Close the Computer Management window.
    1. Run GPedit.msc
    2. Expand Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options
    3. Open the properties for Network security: LAN Manager authentication level
    4. Set the value to: Send LM & NTLM responses
    5. Run Services.msc
    6. Restart the Server service

Difference Between “Bridge” and “NAT” Mode in VirtualBox


What is the IP address of VM (guest)?
Note: the IP address of host is

Note: the IP address of host is
Can VM (guest) shared a folder and allow host to access the shared folder?
Can VM see other PCs/laptops on the MOBITEK workgroup? Yes No
Can VM access the internet? Yes Yes


How to Set to “Bridge Mode” in VirtualBox

  1. Click on “Settings new window will pop up for settings.
  2. Then, go to “Network at “Attached to:” option select “Bridged Adapter” and click “OK”.

Note: Not required to stop the machine/ shutdown for this settings.


How to Allow OS in VirtualBox to Access Internet

  1. Click on “Settings“, new window will pop up for settings.
  2. Then go to “Network” -> “Advanced”. In “Promiscuous Mode”, select “Allow VMs” or “Allow All“.



Birthday Greeting to Datuk Eric Ku





Dear Datuk Eric Ku Yee Fei,

There is a Chinese proverbs that says “it takes ten years to grow trees, but a hundred to train people to become talented.”

But I wish you:
It takes ten years to grow trees, but one year to train people to become talented under iTrain
and Happy Birthday!


How To Know the Last Shut Down Time Of Your Windows PC

Problem:  PC/Server suddenly shuts down


Solution: If you want to know what was the exact last shut down time and start-up time of your computer,  go to the Event Viewer -> Windows Log -> System and look for:-

  • Event ID 1074: PC has been shut down or restarted
  • Event ID 6006: PC has shut down
  • Event ID 6009: PC has start-up


Here are the steps.

  1. If you are using Windows Vista or Windows 7, click the start icon and type Event Viewer in the search box. Event viewer program will appear. Click on it.
  2. Event Viewer window will open. Now on the left side of that window click on  “Windows Logs”. Now on the right side, click on System.
  3. All the system files will open on the right side. Now on the source column you have to find out Eventlog source having Event ID 6006 (6006 is an event ID for shutdown). You will find many Eventlog sources having event ID 6006. But you need to figure out source with the most recent date and time.Note: All the events are placed in descending order (latest time first) so the top event log with event ID 6006 will show the correct time and date of last PC shutdown (In this case the time is 1/10/2010 1:06:48 AM).

    So the last shut down time of my PC is 1/10/2010 1:06:48 AM.





How to Send and Read SMS Using MOBITEK S80 Modem with SMS Express in AirCard Watcher

Note: SMS Express is compatible with Type S only; Type S-L is not compatible.

  1. To send message Click on the message icon
  2. This tab will appear and you need to click the “New”
  3. Once you click new, this tab will appear you can key in the number and message.
  4. Then click send
  5. The sent message will be stored in the Sent Items
  6. To read message click on the inbox, it will show all the read and unread messages.
  7. The  message you selected will be displayed here.