Tag Archives: Network Troubleshooting

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

Network troubleshooting with Netsh

Every have that laptop or netbook that connects to your computer but won’t go online at another location? You can quickly rebuild the IP stack and force the computer to get online at another location by typing the following command: … Continue reading

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Posted in Computers | Tagged , , , , , , , , | 1 Comment

How to flush the DNS cache on Mac, Linux or Windows

If websites are not appearing correctly, connections time out or if you cannot find a computer on a network, you may need to flush the DNS cache.  Here’s how to do it- Microsoft Windows – Go to a command prompt … Continue reading

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Posted in Apple, Computers, Education, Home Networking, Information Technology, Linux, network, Networking, Technology, Ubuntu, Windows | Tagged , , , , , | Leave a comment

Cannot access computer by NetBios name after replacing NIC card

If you have ever replaced a network card on a server or computer and you can no longer access the computer, you should flush any cache on the workstation that is accessing the server. Insure no other users are logged … Continue reading

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Posted in computer troubleshooting, Computers, higher ed, higher education, Information Technology, Microsoft, Microsoft Windows, Microsoft Windows 10, Networking, Technology, troubleshooting, Windows 10, Windows 10 Quick Tips, Windows 7, Windows 8, Windows 8.1 | Tagged , , , , , , | 1 Comment

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 … Continue reading

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Posted in Microsoft Windows 10, Technology, Windows 10, Windows 10 Quick Tips | Tagged , , , , , , , | 1 Comment

Use PortQry to find open ports on a router or computer

PortQry is a download from Microsoft that allows you to see what ports on a remote device are open. While you can use Zenmap, PortQry is a program designed by Microsoft to find and troubleshoot connections.  You can download PortQry … Continue reading

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

Wireless Dropping? Change your Scan Valid Interval

Is your Wireless dropping?  Update your driver of course and then try changing your Scan Valid Interval.   By default, most wireless cards are set to 60.   This is the amount of time before your wireless ‘looks’ for other … Continue reading

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Posted in Home Networking, Networking, Technology, Wireless | Tagged , , | 2 Comments

Optimizing your server with more than one network card

New IT professionals may think that adding a second network card will improve throughput.  While this can be true, IT personnel need to be aware of several rules behind configuring multiple network cards. Assuming the server will be in the … Continue reading

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Posted in Computer hardware, Computers, Information Technology, Networking, Technology, Windows | Tagged , , , , , , , , | Leave a comment

The specified server cannot perform the requested operation.

If you cannot gain access to a computer even though you shared out a folder, you may have to open the registry and perform the following actions on the destination computer. Click start->run  then type regedit. Go to HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory … Continue reading

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How to Delete multiple 6to4 tunnel adapters

If you go to a command prompt and type ipconfig and see several (sometimes dozens) of 6to4 adapters, you can remove these by doing the following – Download the devcon package from Microsoft http://support.microsoft.com/kb/311272 Extract the contents Copy devcon.exe to … Continue reading

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Enterprise computing is tough – Here’s some tips

Here’s a few tips we use when optimizing and troubleshooting computers and mobile devices on our network.   Remember Windows 8 is a different operating system and Windows Surface tablets can be a true productivity tool. Jumbo Frames – What … Continue reading

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Network Connections folder empty

Is your network connections folder empty? First check the device manager.  Load the drivers if necessary.  You may see Ethernet Controller with an exclamation mark on it or a red X.   Find the drivers disk or download the driver … Continue reading

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Posted in Computers | Tagged , , , , | 1 Comment

Cannot Browse Network

Typically if your computer cannot travel across your LAN but can get out to the internet, this can be due to the following- Computer Browser Service is not running Client for Microsoft Networks is not installed So if you type … Continue reading

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Posted in Computers | Tagged , , , | 1 Comment

Network Tools

Axence Software has an excellent suite of tools that is free to use. SNMP Browser Wintools TCP/IP Workshop Port Scanner Netstat many more.

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Wireless Randomly Disconnects

Have Windows Vista or Windows 7?  Are you disconnected from the internet randomly?  Here’s what it could be- Turn off the Adapter’s Power Management feature in the device manager Turn off the USB hub Power Management in the device manager … Continue reading

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