Category Archives: Networking

Slow SQL Connection or Network in Windows 10 – Update

Finally found a small problem with Windows 7, 8, 8.1 and 10.  After upgrading, we have discovered that Windows  was responding slow to our SQL Server 2008 and SQL Server / other versions.  What we discovered is below. Slow response … Continue reading

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Posted in Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, troubleshooting, Windows, Windows 10 Quick Tips, Windows Server | Tagged , , , | Leave a comment

How can I improve my internet performance with DNS information in my router?

There are dozens of tips on the web from MTU size to tweaking network card or wireless router alternate firmware.  What isn’t covered a lot is DNS queries.   DNS or Domain Name Services is used when you type the … Continue reading

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Posted in Apple, Computer hardware, Computers, Home Networking, Internet, Linux, network, Networking, Windows | Tagged , , , | Leave a comment

A Search Engine that shows devices on the web

Secure your devices.  Bottom-line, there are malicious users on the web that can find your device (webcams, IP cameras, routers, SCADA and other devices).  Change the default passwords and update software/firmware when it is available.  Disable UPNP and look for … Continue reading

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Posted in Apple, Computer hardware, Computer Security, Education, Hacking, Home Networking, Information Technology, Internet, Law, network, Networking, Technology | Tagged , , , , , , , , , , , , | 1 Comment

Need to optimize your network? Look at adjusting LocalPriority, HostPriority, DNSPriority or NetBTPriority. 

Need to optimize your network? Look at adjusting LocalPriority, HostPriority, DNSPriority or NetBTPriority.  (Host/DNS resolution) The tweak works by increasing the priority of four processes. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\ServiceProvider\ LocalPriority = 4 (DWORD, the default is 499, change to 4) HostPriority = 5 (DWORD, … Continue reading

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Posted in computer troubleshooting, Microsoft, Microsoft Office, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, Windows, Windows 10, Windows 10 Quick Tips | Tagged , , | Leave a comment

Diagnosing your network and measuring speed.

Diagnosing your network? Here’s a GUI program to ping and get averages and speeds over a period of time – nine years ago we featured Performance Pinging by Carsten Schmidt and cannot find a working website from the author to … Continue reading

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Posted in Computer hardware, computer troubleshooting, Computers, Free Software, freeware, Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, troubleshooting, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows Server | Tagged , , , , , | Leave a comment

IO Graphs in Wireshark-TCP Spurious Retransmission events

TCP Spurious Retransmissions may be seen from time to time when using Wireshark.  How do you see them?  Capture some data with Wireshark on your workstation or server.  Click on Statistics, IO Graphs and click throughout the graph on the … Continue reading

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Posted in computer troubleshooting, Home Networking, Information Technology, network, Networking, Technology, troubleshooting, Wireless | Tagged , , | Leave a comment

Why hiding your SSID is not secure.

Have you heard that hiding your SSID is a good idea?  Think again. With BackBox or Kali (in fact in form of Linux), you can run sudo airodump-ng phy1.mon at a terminal (replace phy1.mon with your network card number) – onboard … Continue reading

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Posted in Computer Security, higher ed, Home Networking, Information Technology, internet security;, network, Networking, Technology, Wireless | Tagged , | Leave a comment

Cannot reset winsock, isatap yellow exclamation, no wireless or internet

Have a wireless card that doesn’t see the wireless?  Does checking the Device Manager show a yellow exclamation mark on the isatap or Teredo Tunneling Pseudo Interface? Always backup your computer before performing advanced commands. Steps Load the latest driver … Continue reading

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Posted in Computers, Home Networking, Information Technology, network, Networking, Windows | Tagged , , , , | 1 Comment

TightVNC for Android – Control your computers from a mobile device.

Need to manage your computers or servers while on the go?  Here’s one thing you can do.  Go to the Google Play Store and download TightVNC Viewer.   You will have to load TightVNC Server on the computers you want to … Continue reading

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Posted in Microsoft Windows, Microsoft Windows 10, Mobile Computing, Networking, Technology, troubleshooting, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Wireless | Leave a comment

Network Throttling Index

Did you know that Windows implements a network throttling mechanism that will restrict and slow network traffic when regular (not multimedia) traffic is transferred? This traffic can be around 10ish packets per ms which is just over 100 megabits per … Continue reading

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Posted in Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, Windows, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server | Leave a comment

Keep DNS services running well on your computer

If you enter ipconfig /displaydns at a command prompt you’ll see that Windows stores successful and unsuccessful name resolutions in cache.  By default, Windows will store this cache for 24 hours.  You can adjust this by doing the following: Open … Continue reading

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Posted in network, Networking, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server | Tagged , , , , | Leave a comment

Find rogue APs with Xirrus Wi-Fi Inspector using signal strength and sound

Xirrus Wi-Fi inspector is a free tool you can use to gather information about wi-fi around you.  You can also use this tool to locate APs via sound very similar to using radar and sound.   Have an AP you … Continue reading

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Posted in Computers, Education, Free Software, freeware, higher education, Home Networking, Information Technology, network, Networking, Software, Technology, troubleshooting | Tagged , , , | Leave a comment

How to get OpenWRT on a Rosewill RNX-N150RT Router? Flash it to DD-WRT then flash to a TP-Link TL-WR741N. Finish with OpenWRT or Gargoyle and out perform may AC routers.

With a Rosewill RNX-N150RT router, you can flash this simple home router to OpenWRT.   While there are a few hoops to jump through, the process is easy. First flash the Rosewill to DD-WRT by downloading the firmware here. Next flash … Continue reading

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Posted in network, Networking, Technology, Wireless | Leave a comment

SSL not showing green lock? Here’s some things to try.

Recently we did a certificate request with an IIS server and loaded the received certificates under Enterprise Trust and imported the certificate into IIS. When we visited the website, we noticed that the newly loaded server did not present a … Continue reading

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Posted in Computer Security, Education, help desk, Information Technology, internet security;, Microsoft, Microsoft Windows, network, Networking, Technology, troubleshooting, Windows, Windows Security, Windows Server | Tagged , , , , , , | Leave a comment

HDD drive slow? It could be your network card…

Another example of what we thought was a failing HDD, turned out to be a corrupt… Winsock?  A non-profit organization called us today and after running diagnostics on the HDD, turns out the computer lock ups and  experienced freezing along … Continue reading

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Posted in Home Networking, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, network, Networking, Technology, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1, Windows Server, Wireless | Tagged , , , | 4 Comments

Networking and Internet problems? Try this

Are you having problems with networking or using the internet?  Open a command prompt as an administrator.  Run the following commands (or copy and paste into the cmd prompt) – route -f ipconfig /release ipconfig /renew arp -d nbtstat -R … Continue reading

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

Rockwell Directory Configuration Wizard Unknown Error 0x80005000

Have the above error?  Copy and paste this in a command prompt as administrator.   This will work a majority of the time.   This configuration error re-registers the dlls that may have issues during or after an upgrade. cd\ … Continue reading

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Speed up your network by disabling the HomeGroup

While we’ve discussed speeding up SQL connections by disabling LLMNR, there’s another way to speed up your network. If you are not using the HomeGroup feature, a quick way to speed up your network is to disable the services for … Continue reading

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

Cyber Summit – Memphis, TN June 2017

The Tennessee Department of Safety & Homeland Security, The Tennessee Fusion Center and Central Service Association are proud to once again bring together individuals from education, government and industry to share in the latest information, strategies, best practices and innovative solutions … Continue reading

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Posted in Apple, Business, Computer Security, Education, Hacking, help desk, Information Technology, internet security;, Microsoft, Microsoft Windows, Microsoft Windows 10, Mobile Computing, Networking, ransomware, Technology, Windows, Windows 10, Windows Security, Windows Server, Wireless | Tagged , , , , , , | Leave a comment

Top Pen Testing ISOs 2017

What’s the top Pen Testing ISOs for 2017?  Here’s my ranking and download links. Kali Linux – https://www.kali.org/downloads/ Backbox – http://www.backbox.org/downloads Cyborg Hawk – http://sourceforge.net/projects/cyborghawk1/files/latest/download Parrot Sec – http://www.parrotsec.org/download/ Deft – http://www.deftlinux.net/download/ Live Hacking OS – http://www.livehacking.com/live-hacking-cd/d Samurai – http://sourceforge.net/projects/samurai/files/ Network Security Toolkit – http://sourceforge.net/projects/nst/ PenToo – http://www.pentoo.ch/download/ Knoppix … Continue reading

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Posted in Computer Security, Computer Software, computer troubleshooting, Computers, Education, Free Software, Hacking, higher ed, higher education, Information Technology, Internet of Things, Linux, Mac, Networking, Software, Technology, Windows, Windows 10, Windows Security | Tagged , , , , , , , , , , , | Leave a comment