Tip & How-To about Computers & Internet

How to Troubleshooting Network



Here you will learn network troubleshooting tips, fix tcp/ip errors, tcp/ip settings, internet connectivity errors, how to fix pc errors, lan connectivity issues, traceroute and ping commands. Whether your operating system is Windows or Linux network problems are likely to arise. Many times the network problems arisee due to improperly configured TCP/IP settings. Following is the basic checklist to identify and troubleshoot the basic networking errors.
1. First of all you should learn what stopped working server or client computer also see if the outage affecting the other computers or only one.
2. If you server stopped working you should inform the users of the server and you should start working on fixing the error.
3. If a single client computer stopped working or disconnected from the network, ask the user of that computer that what recent changes cause the server to stop working such as newly installed software or games, service packs, internet software, new hardware or any other thing.
4. Check the physical network connectivity. The most network problems arise due to the physical layers failure.
5. Check all the network cable connections. You can start at the NIC and check if the green light is blinking then check the hub and see if the computer is getting the link across the cable.
6. Get a cable tester to check the connectivity of the cables.
7. Finally start pinging the network both Windows and Linux have the PING command. You can use ping command in this way start > Run > cmd > type "ping" then IP address of the other computer

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how i fix Error 105 (net::ERR_NAME_NOT_RESOLVED?


Changing the DNS settings to 8.8.8.8. and 8.8.4.4. on BOTH the modem/router AND on each pc on my network in the Tcp/Ip lan or wan settings (in detail bellow) solved this ERROR 105 issue for me,

To change DNS settings (in Win 7) go to Control Panel / Network and Internet / Network and Sharing Center (may be listed as "View Network Status and Tasks" in control panel)

Next click on your connection (Local area network or Wireless area network)

click on Properties

select Internet Protocol Version 4 (TCP/IP v4)

click on Properties (yes, again, but this is a different window)

click Advanced and select the DNS tab

Select any DNS addresses here and Click remove. Make sure there are non left

Click OK. you should now be back at the "Internet Protocol Version 4 (TCP/IP v4)" window

without altering the IP settings at the top, select "Use The Following DNS Server Addresses"

in the first area write 8 . 8 . 8 . 8 .
in the second write 8 . 8 . 4 . 4 .

next either:

1 select "Validate Settings Upon Exit" and press ok
or
2 press ok and then restart the network connection for changes to take effect
(In other words find your connection in "Network and Sharing Center" and click the
"Connect or Disconnect" option above it to disconnect, then select connect to a network in the
same window, select your network and click connect")

Mar 17, 2011 | Google Chrome

1 Answer

email result EA3227


IP Scanner operations
Error Code Cause Remedy
EAXXXX ImageReceiver was not started.
Start ImageReceiver.
The IP address of the recipient
is not specified correctly in the
dialog box that appears after
clicking “Receive Settings”,
then “Connection Filter”.
Click “Receive Settings”, then “Connection
Filter”, specify the correct IP
address, and then restart ImageReceiver.
ImageReceiver is not operating
correctly.
Restart the computer.
Re-install IP Scanner.
Check the TCP/IP settings on the computer.
The LAN cable is not connected.
Check that the LAN cable is correctly
connected.
The network settings on the
computer are not specified
correctly.
Check the TCP/IP settings on the computer.
The network load on the recipient’s
computer is too high.
Check that large e-mail messages are
not being received at the recipient’s
computer and that large files are not
being downloaded from the Web.
Too much data is being sent. If a high scanning resolution has been
specified, reduce the resolution or decrease
the number of pages scanned
at one time, and then scan the document
again.
Access is blocked by the setting
specified for the computer’s
firewall (Windows
firewall) for the Internet connection.
Change the setting specified for the
computer’s firewall (Windows firewall)
for the Internet connection according
to the instructions from your network
administrator.

Oct 07, 2009 | Konica Minolta bizhub 250 All-In-One Laser...

1 Answer

Bizhub 250 error EA3226


Scanner operations
Error Code Cause Remedy
EAXXXX ImageReceiver was not started.
Start ImageReceiver.
The IP address2.gif of the recipient
is not specified correctly in the
dialog box that appears after
clicking “Receive Settings”,
then “Connection Filter”.
Click “Receive Settings”, then “Connection
Filter”, specify the correct IP
address, and then restart ImageReceiver.
ImageReceiver is not operating
correctly.
Restart the computer.
Re-install IP Scanner.
Check the TCP/IP2.gif settings on the computer.
The LAN cable is not connected.
Check that the LAN cable is correctly
connected.
The network settings2.gif on the
computer are not specified
correctly.
Check the TCP/IP settings on the computer.
The network load on the recipient’s
computer is too high.
Check that large e-mail messages are
not being received at the recipient’s
computer and that large files are not
being downloaded from the Web.
Too much data is being sent. If a high scanning resolution has been
specified, reduce the resolution or decrease
the number of pages scanned
at one time, and then scan the document
again.
Access is blocked by the setting
specified for the computer’s
firewall (Windows
firewall) for the Internet connection.
Change the setting specified for the
computer’s firewall (Windows firewall)
for the Internet connection according
to the instructions from your network
administrator.

Jun 24, 2009 | Konica Minolta bizhub 250 All-In-One Laser...

1 Answer

proxy settings


Chances are your internet connection at home differs from your "out and about" settings.

In IE go to tools + internet options + connections + lan settings + automatically detect settings. Try your browser again.

The other place where you might be able to fix your problem is within your network connections (Network Places + Network Connectons). Right click on your LAN or Wireless Connection (whichever you connect to the web with) and choose properties - scroll down to TCP/IP properties and double click on it. If you see a bunch of numbers displayed this is why you have a problem. Those numbers define your local or business network and are what is referred to as "static" ips. You can fix your connection problem by choosing obtain an IP address automatically (and the same with the DNS entry) but if you are using these settings on your internal network you are going to have problems.

Write down the settings within your TCP/IP connection (if you need to change them and so you can put them back later if necessary) and choose the automatic settings option.

Try to browse now.

Report your results back here.

Mar 01, 2009 | Acer Computers & Internet

1 Answer

Connected on Wireless but unable to connect on Internet


If not done allready, setup the lan IP address and default gateway in win98 Click MyComputer-ControlPanel-Network-Double Click TCP/IP Adapter for your 3com device-insert LAN info for IP Adress-subnet mask, Gateway and your Internet service providors DNS Addresses info Tab's (3x different Tabs "IP Adress" "Gateway" "DNS Configuration") IP Adress will be at least one number higher than your gateway address and not allready being used by other PC's on your network and gateway address will same as your router interface address subnet mask will be the same for all PC's on your network. For 3com and Netgear routers LAN setup is usually Gateway = 192.168.1.1 Subnet Mask = 255.255.255.0 IP Adress = 192.168.1.10(choose alternate number than 10 if allready used by another PC on your network, try to use round numbers, must be a number higher than 1) Once all info is entered click OK (this may trigger a database info update message and task)now your LAN is setup and ready to talk to your network Restart PC and try browsing again. May possibly require reinstallation of the TCP/IP client (you double clicked this to setup your LAN in Win98) or reinstallation of the IIS(Internet Information Services)component found in, Add/Remove Programs-Add/Remove windows components and then try LAN setup again if this does not work first time round

May 06, 2007 | 3Com OfficeConnect Wireless 11g 802.11g/b...

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