Link aggregation – Use Multiple NIC Cards

There is truly an advantage to adding multiple NIC cards to a computer.   It won’t speed up a single internet connection but it can help with loss of signal, detecting access points, transferring information to and  from computers.

When adding a second NIC card to a computer, you can highlight both by holding down the CTRL key and clicking on them and then right clicking to bridge the connections so they act as one…this can allow you to bridge a wireless network to a wired network.

Creating a Bridge

Waiting

Bridged Adapter

Bridged Network

Two nic cards on the same network can allow for load balancing.

Dual Wireless Cards

MultiWireless

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Internet or network application slow? You may need to temporarily disable Nagle’s Algorithm

With the Nagle-Algorithm, Windows takes small packets and packages them in to more manageable and efficient sizes.   If you have poor latency, you might try to disable the Nagle-Algorithm.  Nagle’s algorithm helps to control congestion when small packets are sent continuously by TCP.   When enabled, this helps to prevent a flood of these packets.

More information – http://en.wikipedia.org/wiki/Nagle’s_algorithm

How to disable Nagle’s algorithm-

Open regedit.exe.  Navigate to HKey_Local_Machine\System\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\

Find the interface that has your current IP address (see example below)

Find IP address

Add the following values and make sure they are set to 1.

TcpAckFrequency and TCPNoDelay

Add values

This is only a temporary fix for the reduction of some applications on the internet.  Once your project or need is fulfilled, you should re-enable the algorithm by deleting the keys and rebooting or changing the values.

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Is your AHCI Link Power Management viewable from the Power Options Console?

If you can’t see your AHCI Link Power Management from the Power Options, there is a way to add it.  Always backup your computer before modifying the registry.

ahci-link-power-management

You can add the GUID to the registry by going opening the registry (regedit) and creating  a key under the following key -0012ee47-9041-4b5d-9b77-535fba8b1442

The easiest way is to copy the information in italics to notepad or notepad++ and save as AHCI.reg.

After saving this, double click on the .reg file and reboot.

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60]
“Attributes”=dword:00000002

regfile

success

ahci-registry

So what are the settings used for? Using DIPM can add 7% to 8% more battery time according to some articles.

ahci-link-power-management

Index Name Description
0 Active Link power management is not used.
1 HIPM Host-Initiated Power Management (HIPM) is used.
2 HIPM and DIPM HIPM and Device-Initiated Power Management (DIPM) are used.
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Check and repair your SSD or HDD using PowerShell

Want to use PowerShell to scan or repair your drive(s)?  Use the commands below to check your drives.

Need to run a quick check?  Type the following using PowerShell as the Administrator.

Repair-Volume -DriveLetter C -SpotFix

If you need to repair the drive, PowerShell’s DOS equivalent of Chkdsk /f is –

Repair-Volume-DriveLetter C -OfflineScanAndFix

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NetSpot Review – Wi-Fi survey app for Windows

In this three part series we review NetSpot a Wi-Fi survey app for Mac and Windows.

In this part, we look at the Microsoft Windows version of NetSpot.  NetSpot performs accurate Wi-Fi surveys that allows you to use a map of your business, industry or home with dozens of other features.

NetSpot’s Discover Mode collects details about surrounding Wi-Fi networks and returns the data in a detailed table that provides information about the SSID, MAC address, Channel, Security, Vendor, Signal Information (including Average, Max and Min.).  This app also gives you Noise levels for wireless professionals to calculate an exact signal strength.  The real-time charts gives accurate information about 2.4 and 5Ghz frequencies.  NetSpot allows you to download historical information in a CSV file for accurate record keeping.  (More information on Discover Mode will follow in this series.)

The application can be downloaded from here.   The download is a tiny 1.2mb download.  The installation and operation is easy.

Operating the software in Survey Mode is easy.  Simply open the application, upload your map (selecting your approximate measurement) and start your survey by standing near your AP after selecting it, wait a few seconds and then click your mouse.   An accurate signal and information about the AP will give you a heatmap of the immediate area overlaying the information on the map.

To insure an accurate signal is measured it is import to stand in the area for a few seconds then click your mouse.   During our survey, we took several screenshots to show the accuracy of the application as we performed a very basic survey.

Given more time, and more mouse clicks, the accuracy of the survey will of course go up.

During the review, we used two identical laptops with identical drivers and operating systems (Windows 10).  With two individuals using NetSpot, you’ll find the accuracy of the initial survey between the screenshots below is very similar.

The individuals walked side by side to compare readings throughout the survey.

Laptop 1 (Titled Laptop Four 1 of 4 laptops assigned to the  area)

capture-1

capture-2capture-3

Laptop Two

1

2

3

As you can see, this application is a critical application in today’s world because of wireless connectivity growth and complexity.  This application helps to show coverage area and is an important tool for IT professionals when verifying and troubleshooting your wireless connectivity.

Look for parts two and three in the upcoming weeks.  We will update this post and link each post as time permits.

 

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NEW – Software Downloads Page (with hundreds of titles — updated daily)

Excellent! Great resource.

What's On My PC

Just did a revamping of the software Downloads Page…  The page consists of feeds from numerous reputable software and app sites that primarily specializes in FREE software. I am currently using this as my “go to” source to review software listings and to see what is new and/or has been updated. The list is very, very long…  If you hover your mouse pointer over a software title that interests you, a floating description will appear. 

Image result for download button png

View original post

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Windows Cleanup shows 3.99TB? Is my math wrong?

Apparently there is a bug that shows 3.99TB of Windows Update Cleanup when you run the disk cleanup application in Windows 10.  With the plethora of updates that Microsoft has thrown at everyone, this would seem about right, however, you can’t clean 3.99TB from a 1TB disk.

Although I’m sure my disk is OK since the entire internet is reporting this.  It’s a good time to run a chkdsk just to be sure if you receive this.  The odds are that the app is reporting the 3.99TB falsely.

is-my-math-wrong

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Free Cyber Security Training for Vets

FedVTE Training-

Did you know that cyber security professionals report an average salary of $116,000—that’s nearly three times the national income average.
Veterans are some of the best-positioned workers to transition into much needed CYBER SECURITY JOBS! There is free training available just for you!-
See more at: https://hireourheroes.org/training/#sthash.JaAYeqfA.dpuf

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OWASP Zed Attack Proxy (ZAP)- Using on your home network

OWASP -The Open Web Application Security Project is an online community which creates freely-available articles, methodologies, documentation, tools, and technologies in the field of web application security. (Wikipedia)

If you have wanted to learn how to test your network and the devices, you can begin with OWASP Zed Attack Proxy (ZAP).  Remember, when you get ready to attack, you must own the network and the devices on the network.

You can download OWASP Zed Attack Proxy from the link above.

Once you install the program, you may want to make exceptions in your anti-virus or anti-malware software. Plug-ins may be detected as viruses, however, this is common with security software.

no-worriesno-worries-2no-worries-3

Once you have installed OWASP Zed Active Proxy, you may want to update and add some components.  If you are new at scanning and testing security, be sure to look at the tutorials and OWASP videos below.  Again, make sure you own the network and devices on the network.

update

updating

You now need targets.  Start with things such as your router or other devices on your network.  A good way to find them is to use Netscan or Softperfect’s Wi-Fi Guard.

Here’s a basic list of some of the devices on my home network.

softperfect

  • Open OWASP Zed Attack Proxy (basic scan)
  • Enter the IP address to attack
  • Click on Attack

a-scan-history

  • Attacks are entered into the URL box in the right pane (above)

b-scan-alerts

  • View the alert information by selecting the tab (above)

c-scan-spider

  • Look at spider information by selecting the appropriate tab. (above)
  • You can view the history of an attack. (below)

d-scan-active-scan

  • Below- You can right click and open links with a browser (dozens of more features)

z-after-scans

  • Go to Reports and Export as HTML – This will give you links and information on the vulnerabilities of the device. (below)

report

Basics and other videos (found in the links below)

Other information-:

Posted in Computer Security, computer troubleshooting, Computers, Education, Free Software, Hacking, higher ed, higher education, Information Technology, internet security;, IoT, Microsoft Windows, Microsoft Windows 10, Networking, Technology, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Security, Windows Server, Wireless | Tagged , , , , , , , | Leave a comment

DotNet 3.5 failed or won’t install Server 2012

If DotNet 3.5 won’t install or fails to install on Server 2012 (Under Features), there is a work around.

You may see this when installing –

dotnetfail

Cancel the installation

Insert your Windows DVD and open PowerShell –

  • Type the following command and replace ‘d’ with your drive letter of your DVD/CD
    • DISM /Online /Disable-Feature /FeatureName:NetFx3 /Source:d:\sources\sxs
  • Reboot
  • Type the following command in PowerShell
    • DISM /Online /Enable-Feature /FeatureName:NetFx3 /Source:d:\sources\sxs

DotNet should now be installed properly.

Posted in computer troubleshooting, Computers, higher ed, higher education, Information Technology, Technology, troubleshooting, Windows Server | Tagged , , , , | Leave a comment

Realtek PCIe GBE Family Controller performance issues

UPDATE-2016 driver now available! (Driver number will be different than what is in this article! (Direct Link to New 12/2016 Driver)

If you have the Realteck PCIe GBE Family Controller adapter and are experiencing performance issues on your network, download the latest driver.  The driver (above) is far superior to other Realteck PCIe GBE Family Controller drivers.

Our performance issue involved ApplicationXtender an archive system that uses Microsoft SQL to scan documents.   This type of application is dependent on a reliable network and speed.

Old Driver
Average open time – 2 mins 30 secs (if the end user did not click the application, causing a hang)
Query time            –  45 secs to – query box
Query process time-  1 min 10 secs  – display document
New Driver
Average open time –  1-2 secs
Query time            –  1-2 secs to – query box
Query process time-  1-2 secs – display document

 


 realtek

Go to the Advanced Tab and disable everything but Flow Control. 

turnoff

Remember when working with network card drivers, you will lose connectivity during the installation of drivers.

Posted in computer troubleshooting, Computers, help desk, higher education, Home Networking, Information Technology, Microsoft Windows 10, network, Networking, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server | Tagged , , , , | Leave a comment

If You Are Wondering About SD Memory Card Speeds

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Wi-Fi Troubleshooting with dot11Expert from KC Software

Need technical information about your Wi-Fi?  dot11Expert provides detailed information about your wireless card, APs, wi-fi signals in your area and provides a detailed graph of signal strength and quality.

More information can be found at KC Softwares.

adapter-detailsap-detailsdetailsdot11expert-v1-1-05

Posted in Computer hardware, Computer Software, Information Technology, Microsoft Windows, Microsoft Windows 10, network, Networking, Software, Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Wireless | Tagged , , , | Leave a comment

DHCP fix with KB3206632 ?

KB3206632 was released December 13th.   Here’s a list of fixes from Microsoft’s site

This security update includes these additional improvements and fixes. No new operating system features are being introduced in this update. Key changes include: 

  • Improved reliability of Security Support Provider Interface.
  • Addressed a service crash in CDPSVC that in some situations could lead to the machine not being able to acquire an IP address.
  • Addressed issue where a Catalog-signed module installation does not work on Nano Server.
  • Addressed issue with Devices left with Hello on for an excessive amount of time will not go into power savings mode.
  • Addressed issue with gl_pointSize to not work properly when used with drawElements method in Internet Explorer 11.
  • Addressed issue where Azure Active Directory-joined machines after upgrading to Windows 10 Version 1607 cannot sync with Exchange.
  • Addressed additional issues with app compatibility, updated time zone information, Internet Explorer.
  • Security updates to Microsoft Edge, Internet Explorer, Microsoft Uniscribe, Common Log File System Driver.
Posted in Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, Technology, troubleshooting, Windows, Windows 10, Windows 10 Quick Tips, Windows Server | Tagged , , , | Leave a comment

What’s in your IT backpack?

I’m always being asked what’s in my IT backpack?

100_3426
Here’s the list-

Laptop

 Laptop Software
  • Windows 10
  • 8 GB RAM
  • 256 GB SSD SanDisk
  • SD Adapter
  • VGA/HDMI ports
  • USB x 3
    1- USB 3.0
    2-USB 2.0
  • Wireless 802.11 n
    Atheros AR5B93
  • Nessus
  • NMap
  • Wireshark
  • Cain and Abel
  • Netscan
  • TightVNC
  • EMET
  • Wi-Fi Guard
  • Google Earth Pro
  • Windows NT password breaker
  • Wireless
  • Vistumbler (for Wireless and GPS surveys)
  • Netsurveyor
  • Xirrus
  • Wi-Fi Analytics
  • Chanlyzer Pro
  • NetSpot
 Hardware
  • 20′ USB ext. cable (male / female)
  • Universal USB charger
  • USB Hub 5 port
  • USB Hub 4 port
  • USB to 2.5 power cable
  • CAT 5e 6′ Ethernet Cable
  • CAT 5e 8″ Ethernet Cable
  • USB to Micro-B 5pin cables x 4
  • USB (dual) to Mini-B 5pin cable
  • USB (single) to Mini-B 5pin cable
  • Lightning cable
  • 4K camera with attachments
  • Mini Tripod
  • PCIe Wireless adapter
  • External DVD Writer
  • Wire ties
  • External HDD 320GB
    Various ISO/Software tools for
    Windows/Linux/Mac
  • Laser Pointer
  • Flashlight
  • Propane lighter
  • 2 D-Rings
  • Mini-Battery Phone Charger
  • Car Charger for Phone
  • 4 port USB hub
  • USB drive – Linux bootable
  • USB drive – Kali
  • CD – Sardu
  • Micro SD 8GB x2 with adapters
  • 50′ 1/4 rope
  • 200′ nylon string
  • Wire strippers
  • #1 cross-tip
  • #2 cross-tip
  • Standard flat-tip
  • Phone/Tablet toolkit
  • Laser/Ultrasonic
    range/measurement tool
  • Leatherman
  • Soldering iron
  • Netgear Router (full)
    DD-WRT (custom)
  • ZyXEL Router (mini)
  • Wi-Spy Spectrum Analyzer
  • 2.5/5 Ghz Spectrum Analyzer
  • Microsoft GPS
  • Cisco AC wireless USB adapter (AE6000)
  • Solar AA/AAA charger
  • AA/AAA battery pack
    • For Laptop or Routers
  • Motorola Droid X with Kali
 Miscellaneous
  • Rain Jacket
  • Gloves
    • Work
    • Cold Weather
  • Ear Muffs
  • Ear Plugs
  • Winter Cap
  • Baseball Cap
  • Safety Glasses
  • First Aid Kit
  • Waterproof bags

How often do I use things from my jump bag ?  Everyday.

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DHCP issues with KB3201845

If you have issues after applying KB3201845, Rick over at Whats On My PC may have first found it.  Apparently Microsoft is displaying a banner on their Windows 10 History page that says to restart NOT shutdown.   We experienced the issue Friday thinking a DNS issue had appeared – however, after his clues on restarting, we made sure the KB was on and restarted the affected machines – fixing whatever issue appeared with the KB.

The KB is a little over 900mb which is beginning to tax our resources (huge updates).  While we use a WSUS server, computers that receive the update and shutdown may ‘see’ the problem.  Here’s a link to the KB for a full download if you have a lot of computers.

https://www.catalog.update.microsoft.com/Search.aspx?q=KB3201845

From the History site –

10-dhcp-problems

 

Posted in Computer Software, computer troubleshooting, Computers, help desk, higher ed, higher education, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, Technology, Windows 10, Windows 10 Quick Tips, Windows Server | Tagged , , , , | Leave a comment

Seagate GoFlex Home Server firmware update issues – solved

Several years ago we did a review on Seagate GoFlex Home Server (NAS).  Recently I went to update the firmware which can be found in the web interface of the device.

goflexhome

Once I clicked ‘update’,  the device found an update but would not download the update.  Searching with Google’s Chrome I found the updated firmware at http://support.goflexhome.hipserv.com/en/reflash/ .

The site was for some reason marked malicious by Google.  Here’s how to fix the issue.

  • First, login to your device and note every user of the device so that your original files will be maintained.  While the device will flash, it is important to recreate your original users or you can lose your files.
  • Open  http://support.goflexhome.hipserv.com/en/reflash/    with Edge or Internet Explorer.
  • Download the zipped file with IE or Edge from the site above
  • Format a USB key with FAT32
  • Extract the Zipped files to the USB key at the root level. No other files should exist on the USB key.
  • Gracefully remove the USB key from the PC and insert into the GoFlex Home’s USB connector.
  • Power off your GoFlex Home, ensure power cord and Ethernet are still connected.
  • Remove the hard disk from the GoFlex Home.
  • With your GoFlex Home powered off, press the Power button and hold the Reset pin. The green light will blink immediately, followed by the white light. Release the reset pin and wait for the device to complete booting and obtains a steady green light (approximately 3-4 minutes) – Be Patient!
  • Your device should now be reflashed, remove the USB key
  • Power the device off
  • Reinsert the HDD
  • Power the device on
  • Log into the device
  • Recreate one of the administrator users you had before flashing
  • Once you login, recreate the other users you had

See our other article – “Gaining Root Access” – Using telnet on your device with putty…

Posted in Computer Security, computer troubleshooting, Hardware, Home Networking, network, Networking, Technology, troubleshooting | Tagged , , , , | Leave a comment

Coming Soon – Mac and Linux Quick Tips

Coming Soon – Mac and Linux Quick Tips

Why?  Because IT must understand all operating systems.

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Mac – How to capture or copy your screen

How do you take a screenshot with a Mac?  To capture your screen, use Command-Shift-3

full

To capture part of a screen, use Command-Shift-4.  Use your mouse and drag the cursor over the area you want to capture.  The file will be saved to your desktop.

part

 

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Goodbye CMD prompt – and update your PowerShell help

Powershell is becoming the new default command line.  It’s more powerfull and computers and operating systems always change. Before you get started, you may want to update it.  Right click your menu icon. Select Windows PowerShell (Admin)

powershell

Next type – Get-Help dir

help

help-two

Can I still get to the CMD prompt?  Yes – simply type CMD after clicking the menu icon.  Next right click on the CMD program and run as an administrator.

cmd

Windows PowerShell Tutorials

Posted in Computer Software, Computers, help desk, higher ed, Information Technology, Microsoft Windows, Microsoft Windows 10, Technology, Windows, Windows 10, Windows 10 Quick Tips | Tagged , , , | 1 Comment