Internet Troubleshooting Guide

Dinesh's Complete Internet Troubleshooting Guide

   Information
This is your one-stop internet related issues guide. Here I will show you some ways to fix your high speed or dial up internet connection issues with Windows 7.
   Note
I will show you some very useful and basic steps that you can follow without having much technical expertise. All you have to do is identify your issue and follow the troubleshooting according to it.
   Warning
I do not guarantee that it will 100% work for you. However, these methods have been tried and tested and has worked 8/10 times. So try your luck.




Here's How:

Step 1: Identify your internet connection:

A: Do you have a high speed connection or a dial-up connection?
  • If you use a telephone line and connect it to your computer and dial the connection, you have a dial-up connection.
  • If you have a router or a cable/DSL modem with an ethernet cable connected to your computer, its a high speed connection.
Step 2: Troubleshoot the issue.
   Note
To fix internet issues related to high-speed connection, follow these steps:


When you Cannot Connect to internet using a high-speed or broadband cable connection.

Check your IP Address.
Click Start and in the Start Search box, type cmd and press Ctrl+Shift+Enter.
Now in the black command prompt window, type ipconfig /all
(See the screen-shots below).
1.PNG

Look for Ethernet Adapter Local Area Connection.
Look for IPV4 Address. If its anything other than 169.254.xxx.xxx, you have a valid IP address.
For any other ip address other than 169.254.xxx.xxx, follow these steps:
   Information
Now that you've diagnosed that you have a valid IP address, its time to diagnose the issue.

A: In the same black command prompt window, type
ping <Default Gateway> and press Enter.
(See the screenshot below).
2.PNG
Now look at the ping statistics, it should send 4 packets and receive 4 packets. Sent=4, Received=4, Lost=0.

B: If the ping is successful, type
ping Google and press Enter.
(You can type the address of any website like Yahoo! to check the connectivity).
(See the screenshot below).
3.PNG
If the ping is again successful, your Anti virus or firewall program is blocking your internet connection. By pinging Default Gateway and websites, we check the internet connectivity of the computer with ISP and websites respectively.

   Information
Now that you've diagnosed that the ping is successful, its time to troubleshoot the issue.



  • If ping to Default Gateway and website is successful but you cannot browse any websites:
Temporarily disable/remove your antivirus program and your internet will start working.
Note: You can also boot to safe mode with networking to check the internet connectivity. (Press F8 when you turn on your computer and select Safe mode with networking option to boot the computer to safe mode with networking).


  • If ping to Default Gateway is successful but pinging websites returns an error and you cannot browse any websites:
In the same black command prompt window, type the following commands and press Enter after each command:
Ipconfig /flushdns
Ipconfig /release
Ipconfig /renew
Now restart your computer and try to browse to some websites like yahoo,google, etc.
4.PNG

  • If ping to Default Gateway and pinging websites returns an error and you cannot browse any websites:
   Note
If you ping the default gateway or any website, you may get an error saying “Media State Media Disconnected” and ping will not return you any statistics

A: Check whether your internet cable is properly plugged in to the computer.

B: Remove the internet cable from computer, restart your cable modem and computer and plug the internet cable back to the computer.

C: Verify whether all the lights on the cable modem are lit.

D: Enter BIOS, make sure that the Integrated NIC is Not Disabled.

E: In the black command prompt window, type
Ipconfig /release and press Enter. Then type ipconfig /renew to obtain a new ip address from the DHCP server.

F: Click Start and in the Start Search box, type services.msc and press Enter. Then double-click DHCP client service and make sure the Startup type is Automatic and Status is Started.
5.PNG
If ping to Default Gateway is successful but pinging any website is unsuccessful and you cannot browse any websites:
(Ping Statistics: Sent=4, Received=0, Lost=4. )
A: Temporarily disable/remove your antivirus or firewall program.

B: Try a system restore.

C: Delete all temp files and cookies and restart your computer and cable modem.

D: If you have connected your computer to a router, bypass the router and connect the computer directly to the cable/DSL modem.
For ip address 169.254.xxx.xxx, follow these steps:
A: In the command prompt window, type
netsh winsock reset catalog and press Enter. Now restart your computer.(See the screenshot below).
6.PNG


B: Try a system restore.

C: Click Start and in the Start Search box, type services.msc and press Enter. Then double-click DHCP client service and make sure the Startup type is Automatic and Status is Enabled.

D: Remove the internet cable from computer, restart your cable modem and computer and plug the internet cable back to the computer.

E: Reinstall Windows 7.

   Note
To fix internet issues related to dial-up connection, follow these steps:


When you Cannot Connect to internet or cannot dial a connection using a dial-up connection.
A: Check your telephone line and make sure its connected properly to the modem port at the back of the computer.

B: Lift the telephone receiver and listen to the dial tone to make sure that the telephone line is working.

C: Check the connection properties by clicking on Start>Control Panel\All Control Panel Items>Phone and Modem.
Under Phone and Modem>Dialing Rules>My Location>Edit make sure that the Country/Region and the Area Code is matching with yours.
(See the screen-shots below)


D: Click Start and in the Start Search box, type msconfig and press Enter.
In the system configuration utility, click Startup and click Disable All.
Click Apply and Click on Ok and Click Restart now.
(See the screen-shots below)
Capture.PNG

E: Delete temp files and cookies by using this tutorial.

F: Call your ISP to reset your account.

G: Open the computer and Reseat the modem card or put it in a different slot.
(See the screen-shots below)

H: Reinstall Windows 7.

I: Replace the modem card (Hardly costs US$20).

   Note
If your internet stopped working after a thunderstorm or lightening, directly proceed to Step G.


Note: Make sure you install the latest NIC driver for high speed internet connection.
Hope this helps you getting online once again,
Dinesh.




 
Last edited by a moderator:
Changed USB selective settings to disabled.
This is a PC not a laptop.
The Drivers for the Modem are the latest available from Conextant
Modem is Conextant USB CX93020 ACF Modem. Bought this year, no date of manufacture, but listed as compatable with W 7.
Tried the Modem in all 7 USB ports and all other USB devices work properly (ICY Box, Keybord/WirelessMouse/Flash Drive.) Not tried a printer yet.

Thank you so far.
 

My Computer

OS
Windows 7
Sorry to report that the above suggestion did not work. The modem had to be disconnected after Sleep. I wonder if it is trying to download a Fax when it restarts rather than connect to my ISP?
 

My Computer

OS
Windows 7
Damn

Sorry to hear it hasn't been resolved. There are a few more things I could suggest but I doubt they will resolve your problem.

Best you can do is contact the vendor of the modem and hope someone gets back to you. Perhaps they can give you more specific information with the modem. I use a router so I'm not too familiar with that hardware, though it shouldn't be doing what it's doing.

Good luck, sorry I couldn't help. Lets us know if you come right and what the problem was.
 

My Computer

OS
Windows 7
Thank-you for taking the trouble. I will report on future developments if any.
Only thing we can see is that before Dialling properly the message "Opening port" flashes up briefly, but this does not happen afer Sleep.
 

My Computer

OS
Windows 7
Hi

urrm... dinesh i nyd to ask sumthing... my internet connection resets like evry 2 min bt dhen reconnects... i have to press the refresh button to load the page again. n also there are times wen i cant sign in to windows live messenger but i can go into the server status and sites... Y is it??? thanx in advance :)
 

My Computer

OS
windows 7 ultimate 32bit version
urrm... dinesh i nyd to ask sumthing... my internet connection resets like evry 2 min bt dhen reconnects... i have to press the refresh button to load the page again. n also there are times wen i cant sign in to windows live messenger but i can go into the server status and sites... Y is it??? thanx in advance :)
Hi, is it a DSL Connection?
Try using the connection in safe mode with networking to see if it gets disconnected.
Also, try releasing and renewing the IP address.
Let me know if it works. :)
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
heyyy

hey dinesh!!! thanx for ur help... after a clean installation it syms the prob has gone... but i ll have to install it again... this tym windows is sayin that my windows 7 is not genuine... after i install again n will see if the problem is still there n will tell u okies!!! thanx alot :)
 

My Computer

OS
windows 7 ultimate 32bit version
hey dinesh!!! thanx for ur help... after a clean installation it syms the prob has gone... but i ll have to install it again... this tym windows is sayin that my windows 7 is not genuine... after i install again n will see if the problem is still there n will tell u okies!!! thanx alot :)
make sure you have typed the product key correctly. If needed, contact Microsoft if its a genuine MS Windows 7 copy. :)
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
Zonealarm incompatibility

Hi
Really hope someone can help me:(

Windows 7 64bit.
Tested in Opera 10, Chrome, IE8, Firefox 3.5
I can ping any address on my workgroup
I can ping my router (default gateway) but the first packet always takes much longer than the other sent packets e.g first packet takes 48ms and the rest only take 2ms

I cannot ping my own IP address
Removing Avast, ZoneAlarm and disabling Windows Firewall make no difference
Flushed DNS doesn't work

Web browsers perform slow and often don't load, I have to refresh or come back later
Downloads time out after a few minutes
I have to use a download manager to get files larger than a few megs
My IP Address is manually configured and DNS settings were provided by my service provider.

Been at this for a few days without luck and really don't want to reformat. Any help will really be appreciated

Thanks

Just you let you know, I could not ping localhost successfully as well, always packet loss between 50% and 100%. However, pinging my router, pinging with IPv6 (ping localhost -6) worked fine. Internet access worked, but not really speedy.

Disabling Windows firewall and Zonelarm (Free) Firewall did not solve the problem, but uninstalling did.

It is one week ago I downloaded it, seems they have still issues here.

I also noticed the debug files in Windows/Internet Logs growing rapidly (200 MB / hour).

Somebody with a recommendation regarding a free firewall?

Cheers,
Dulli
 

My Computer

OS
Windows 7 x64
Hi
Really hope someone can help me:(

Windows 7 64bit.
Tested in Opera 10, Chrome, IE8, Firefox 3.5
I can ping any address on my workgroup
I can ping my router (default gateway) but the first packet always takes much longer than the other sent packets e.g first packet takes 48ms and the rest only take 2ms

I cannot ping my own IP address
Removing Avast, ZoneAlarm and disabling Windows Firewall make no difference
Flushed DNS doesn't work

Web browsers perform slow and often don't load, I have to refresh or come back later
Downloads time out after a few minutes
I have to use a download manager to get files larger than a few megs
My IP Address is manually configured and DNS settings were provided by my service provider.

Been at this for a few days without luck and really don't want to reformat. Any help will really be appreciated

Thanks

Just you let you know, I could not ping localhost successfully as well, always packet loss between 50% and 100%. However, pinging my router, pinging with IPv6 (ping localhost -6) worked fine. Internet access worked, but not really speedy.

Disabling Windows firewall and Zonelarm (Free) Firewall did not solve the problem, but uninstalling did.

It is one week ago I downloaded it, seems they have still issues here.

I also noticed the debug files in Windows/Internet Logs growing rapidly (200 MB / hour).

Somebody with a recommendation regarding a free firewall?

Cheers,
Dulli

Comodo Firewall is free and is recommended by many geeks here. ;)
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
Thanks - Worked For Me!

Hi Dinesh,

Thanks for this tutorial. I quickly established that my AV (which I have been using for some time without a problem) was the problem. I have now replaced it with MSE.

Great Job.

Terranaut :D
 

My Computer

OS
Win 7 Home Premium 64bit
Thanks and glad to hear you sorted out the issue. :D
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
doesnt work

Hi Dinesh,

Thanks for the help you provided for some reason I cant still access internet... I can see my wireless settings and when I ping I get reply from default gateway bu not website like Google or yahoo...

It says cant find host

I have tried everything, including installing new Intel wireless driver for my lenovo t61 laptop...

please advise...

Even when I connect using modem directly still cant access internet... this happened since I downloaded Itunes 9 on my laptop ... I cant think of another reason... also I had a freeware spyware program called spyware terminator which was blocking few good services, but I have uninstalled that as well...

please help :cry:

Regards
Deno
 

My Computer

OS
Windows 7 , 32 Bit Ultimate
CPU
2.8 GHZ , Intel Core Duo 2
Memory
2 GB RAM
Graphics Card(s)
NVIDIA
Hard Drives
80 GB
Hi Deno, its not your PC's fault. I'd suggest you to contact your ISP and check with them for any known outage in your area.
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
please help me with the problem

HELLO

I have moved in to a new university student dorm where internet is provided by university via DSL cable.
In my previous dorm I was using wireless internet so never really used LAN much before.
Now here I'm not able to connect due to " Windows couldn't automatically detect this network's proxy settings"

I'm using Windows 7 64 bit, I have tried "netsh" commands that were mentioned in other topic, flush.bat set of commands, even tried the restore method but nothing worked. Have been up all night to solve this issue it's so frustrating. I was checking this tutorial I have pinged but I have noticed that there is no default gateway address of LAN local area network.

Please help with this problem. Thanks
 

My Computer

OS
Windows 7 Home Premium 64 bit
Hi, it looks like your university has a static IP/DNS server address. Have you checked with any other guy in the university and match the settings on his laptop with yours?
 

My Computer

Computer Manufacturer/Model Number
Samsung NP530U4B-S02IN
OS
Windows® 8 Pro (64-bit)
CPU
Intel® Core™ i5 Processor 2467M (1.60GHz, 3MB L3 Cache)
Motherboard
Samsung Electronics
Memory
6GB DDR3 System Memory at 1,333MHz (on BD 4GB + 2GB x 1)
Graphics Card(s)
AMD Radeon™ HD7550M 1GB DDR3 (Ext. Graphic)
Sound Card
Realtek High Definition Audio
Monitor(s) Displays
35.56cm (14.0) SuperBright 300nit HD LED Display
Screen Resolution
1366x768
Hard Drives
1TB S-ATA II Hard Drive (5400RPM) with ExpressCache 16GB SSD
Internet Speed
sucks
Antivirus
Microsoft Security Essentials
Browser
Google Chrome (Sync enabled)
Yup and theirs is working fine. It seems im the only one having this issue
I thought it might be my cable but I bought a new one and nothing change.
 

My Computer

OS
Windows 7 Home Premium 64 bit
1.A. High Speed Connection
2. Check IP Address: IPv4 Address is not under "Ethernet Adapter Local Area Connection". The entirety of this section reads:

Media State........ : Media disconnected
Connection-specific DNS Suffix........ :
Description.............. : Intel <R> 82578DC Gigabit Network Connection
Physical Address.............. : 90-FB-A6-4B-74-AD
DHCP Enabled................. : Yes
Autoconfiguration Enabled.......... : Yes

However, IP v4 Address is in the next section called "Ethernet adapter Hamachi" (the eighth line of it). The value on this line follows the pattern 25.177.XX.XXX<Preferred>. Does this indicate a valid IP address? I am not sure if it matters that IPv4 Address does not appear under the "Ethernet Adapter Local Area Connection"
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Gateway DX4831
OS
Windows 7 Home Premium 64-bit Operating System
CPU
Intel(R) Core(TM) i3
Memory
6.00 GB (5.87GB useable)
Please disregard my previous message. Another person was able to solve the problem.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Gateway DX4831
OS
Windows 7 Home Premium 64-bit Operating System
CPU
Intel(R) Core(TM) i3
Memory
6.00 GB (5.87GB useable)
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