Connectivity problems: Unidentified Network

Do these actions

  1. Check your systemdisk for errors and repair them http://www.sevenforums.com/tutorials/433-disk-check.html . Any errors? And is it fixed? Sometimes you have to run it multiple times to fix all problems
  2. Check your system files and repair them http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html . Were there any corrupt files? Was win7 able to fix them? Sometimes you have to run it multiple times to fix all problems
If both steps above don't produce errors anymore and you did a reboot afterwards, test internet connection again. If it still doesn't work

From http://www.sevenforums.com/tutorials/783-elevated-command-prompt.html
netsh winsock reset catalog (reset winsock entries)
netsh int ip reset c:\reset.log (reset TCP/IP stack)
Now reboot. Does it fix the problem?

You can check and delete c:\reset.log later.
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
Did all you asked me to..
Problem's still there + I don't have the reset.log file...
 

My Computer

OS
Windows 7 Ultimate x64
netsh winsock reset (reset winsock entries)
netsh int ip reset

but both commands ended successfully? indeed no reset.log file (was vista syntax I assume)
Did you boot afterwards?
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
I formatted my PC just yesterday and installed a clean copy of windows 7 Ultimate x64.
Installation went smoothly and everything was okay.
Then today I had to restart my router and since than I keep having problems with my ethernet connection
Why did you restart your router? Are you very sure that before this action you had no connection problems? And just after retarting router the problems start?
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
Can you borrow another router for an hour? switch it on, wait a few minutes, then put ethernetcable in it. Do you get an ip-address from router?

IPCONFIG in command prompt. Have you gor a 192.168 ip address something like:
Code:
 Verbindingsspec. DNS-achtervoegsel:
Link-local IPv6-adres . . . . . . : fe80::dc7d:1b91:3c56:68c1%11
IPv4-adres. . . . . . . . . . . . : [COLOR=red]192.168[/COLOR].10.100
Subnetmasker. . . . . . . . . . . : 255.255.255.0
Standaardgateway. . . . . . . . . : 192.168.10.1
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
What's your ip address right now on not working machine? IPCONFIG
and can you ping yourself?
PING 127.0.0.1
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
To prove it's a windows7 problem (or to prove it's not) download ubuntu live cd and burn to dvd. Reboot from that dvd on not working machine. Don't install it but just run the live version! Can it browse the internet. look for some icon and check network settings. Has it an ip address?

If it can access internet it's good
Download | Ubuntu
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
Mind if I use fedora instead? I find it quite better than ubuntu and I already have a bootable media..
Anyway yep, both commands ended successfully...
 

My Computer

OS
Windows 7 Ultimate x64
Nothing dude... the eth port seems to be dead..
Same on PartedMagic (found that live media around so why not that)...Packets get sent but none is received... I wanna run a last test using my laptop + fedora 15... if the router end of the cable's good, I think we found the faulty component...
 

My Computer

OS
Windows 7 Ultimate x64
PartedMagic?? That's for partitioning afiak. Or can it network as well? Anyway eth0 is dead on windows7, linux etc? Uninstall driver in device manager, shutdown, power off and remove network card. Buy another network card. Is it a laptop?? Then removing network card can be difficult ... just disable driver in device manager
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
Exactly as I thought...
Works perfectly on my laptop... pinged google.com, took 45 msec for a packet to get there so connection's working...
 

My Computer

OS
Windows 7 Ultimate x64
the network card died just same time as you restarted the router? Very strange coincidence
 

My Computer

Computer type
Laptop
Computer Manufacturer/Model Number
ACER ASPIRE 5742G
OS
Microsoft Windows 7 Home Premium 64-bits 7601 Multiprocessor Free Service Pack 1
CPU
Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz
Motherboard
Acer Aspire 5742G
Memory
4,00 GB
Graphics Card(s)
ATI Mobility Radeon HD 5400 Series
Sound Card
(1) AMD High Definition Audio Device (2) Realtek High Defi
Screen Resolution
1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Hard Drives
WDC WD5000BEVT-22ZAT0
it can network, as almost any other live CD (i suppose they left it there to download additional driver/software in case part of the disk results as being corrupted/unavailable...

It's an on-board network adapter, i will just switch it off...
tomorrow i'm getting a new card, then...
Now I want to switch from fedora to Knoppix on my laptop, i find it less sparkly and more SFW...
 

My Computer

OS
Windows 7 Ultimate x64
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