Internet problem

[nerwnas]

Good afternoon

My notebook is Acer 8930G and my network adapter is an Atheros AR8121/AR8113/AR8114 and i used to have as a wired router a Dlink 524T, which i changed with a Netgear DG834 during my many attempts to resolve in vain my internet problems as i did with my ethernet cables.

About a week ago,suddenly my notebook ceased to have any internet connection and my status varied from local only to limited connectivity while both the green and orange lights on the adapter came and went continiously.
After a casual scan with Malwarebytez antispyware,it turned out that i had 9 infections from the trojan BHO.After innumerable efforts and formats,i somehow cleaned(so it seems without being 100% certain) my PC.The only thing is that the problem persists with the connection,while two other computers that share the network with me didn't have any problems whatsoever.

Is it possible that my ethernet card was damaged by the trojan?If anyone could help me out or at least enlighten me,i would be much obliged!!!!

Thanks in advance

[lorjack]

Supply the following information please.

OS running on all affected systems
Make & models of all equipment (routers, network cards, modems).
Wired or wireless?
What wireless encryption is in use? (WPA, WPA2, WEP, None)
Browsers being used (Firefox, IE, Safari, Opera,...)
What security software is installed? (Firewalls, AV, Spyware, Malware,...)

Open up a command prompt (Start > run > cmd)
Type the following bolded commands and post the results for each affected machine.

ipconfig /all
ping www.google.com
ping 74.125.53.99

Note: To post results of commands, alternate click on the top of the command prompt > edit > select all >
alternate click on the top of the command prompt > edit > copy > paste in a message here. If you are on
a computer that can't connect to the internet then paste the contents in a text document and save it to a
portable media like a flash drive, then use an internet capable machine to post the contents.

[nerwnas]

Originally Posted by lorjack

Supply the following information please.

OS running on all affected systems
Make & models of all equipment (routers, network cards, modems).
Wired or wireless?
What wireless encryption is in use? (WPA, WPA2, WEP, None)
Browsers being used (Firefox, IE, Safari, Opera,...)
What security software is installed? (Firewalls, AV, Spyware, Malware,...)

Open up a command prompt (Start > run > cmd)
Type the following bolded commands and post the results for each affected machine.

ipconfig /all
ping www.google.com
ping 74.125.53.99

Note: To post results of commands, alternate click on the top of the command prompt > edit > select all >
alternate click on the top of the command prompt > edit > copy > paste in a message here. If you are on
a computer that can't connect to the internet then paste the contents in a text document and save it to a
portable media like a flash drive, then use an internet capable machine to post the contents.

Well i'm running Windows Vista Ultimate x32.My pc is a notebook Acer 8930G with Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller and my router is a Netgear DG834.I connect to the internet only through ethernet cable and right now i'm using another pc.
After all this formats i did,i only have Internet explorer 7 installed while i'm not using any antivirus or firewall programs right now because i cannot connect to internet.When the problem aroused,I was using Mozilla firefox and Kaspersky firewall.

My ipconfig e.t.c logs are:

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Nektarios>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Nektarios-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR8121/AR8113/AR8114 PCI-E Ethern
et Controller
Physical Address. . . . . . . . . : 00-A0-D1-AA-70-9F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8a9:f251:7dd8:a8e1%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Παρασκευή, 3 Ιουλίου 2009 11:53:00 πμ
Lease Expires . . . . . . . . . . : Σάββατο, 4 Ιουλίου 2009 11:56:14 πμ
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 5100
Physical Address. . . . . . . . . : 00-16-EA-6C-0D-48
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{F81850F6-95F4-4091-BC97-331105EE3
F86}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{3A408C01-4464-4172-ACFB-BC580A86A
844}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Nektarios>ping www.google.com

Pinging www.l.google.com [74.125.39.104] with 32 bytes of data:
Reply from 74.125.39.104: bytes=32 time=43ms TTL=242
Request timed out.
Reply from 192.168.0.5: Destination host unreachable.
Reply from 74.125.39.104: bytes=32 time=117ms TTL=242

Ping statistics for 74.125.39.104:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 117ms, Average = 80ms

C:\Users\Nektarios>ping 74.125.53.99

Pinging 74.125.53.99 with 32 bytes of data:
Reply from 74.125.53.99: bytes=32 time=202ms TTL=45
Request timed out.
Reply from 192.168.0.5: Destination host unreachable.
Reply from 192.168.0.5: Destination host unreachable.

Ping statistics for 74.125.53.99:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 202ms, Maximum = 202ms, Average = 202ms

[lorjack]

Reinstall the latest drivers for the network card.

[nerwnas]

i already did that but in vain.....

[lorjack]

Boot into safe mode with networking and repeat the ping tests.

[johnwill]

The results indicate you could have a serious issue with the ISP.


Register at DSLReports and run their Line Quality Tests. It's best to run this test with a direct wired connection to eliminate any wireless issues from the results. It's useful many times to run this test several times, and we'd like to see each of the results. Post the results link from the top of the test display page for each test run here.

The link to post is near the top of the page and looks like:

If you wish to post this result to a forum, please copy/paste this URL
http://www.dslreports.com/linequality/nil/2357195 <- sample only, yours will obviously be different!
and your IP will be disguised.

Copy/paste that link here.

Note: You will have to enable PING (ICMP) request response either in your router (if you have one), or in your computer's firewall for direct modem connections. This is very important to get the most important part of the test to run.


DSLReports

Here's also the Line Quality Tests FAQ to help you understand the results. This will answer some questions about the line quality display.

[nerwnas]

Originally Posted by johnwill

The results indicate you could have a serious issue with the ISP.


Register at DSLReports and run their Line Quality Tests. It's best to run this test with a direct wired connection to eliminate any wireless issues from the results. It's useful many times to run this test several times, and we'd like to see each of the results. Post the results link from the top of the test display page for each test run here.

The link to post is near the top of the page and looks like:

If you wish to post this result to a forum, please copy/paste this URL
http://www.dslreports.com/linequality/nil/2357195 <- sample only, yours will obviously be different!
and your IP will be disguised.

Copy/paste that link here.

Note: You will have to enable PING (ICMP) request response either in your router (if you have one), or in your computer's firewall for direct modem connections. This is very important to get the most important part of the test to run.


DSLReports

Here's also the Line Quality Tests FAQ to help you understand the results. This will answer some questions about the line quality display.

My connection is only wired and the problem is that i don't have any internet at all,so i can't run the test!Right now i'm using another computer.

Is there something else to try??

Thank you

[lorjack]

Originally Posted by nerwnas

My connection is only wired and the problem is that i don't have any internet at all,so i can't run the test!Right now i'm using another computer.

Is there something else to try??

Thank you

Yeah first you need to get internet first. Did you try safe mode?

[nerwnas]

Yes both networking and not but all inconclusive....

[lorjack]

Originally Posted by nerwnas

Yes both networking and not but all inconclusive....

What do you mean by "inconclusive"? We need to see the results of the ping tests to indicate what the problem is.

[nerwnas]

Microsoft Windows [Version 6.0.6001]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Nektarios>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Nektarios-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR8121/AR8113/AR8114 PCI-E Ethern
et Controller
Physical Address. . . . . . . . . : 00-A0-D1-AA-70-9F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8a9:f251:7dd8:a8e1%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Παρασκευή, 3 Ιουλίου 2009 11:53:00 πμ
Lease Expires . . . . . . . . . . : Σάββατο, 4 Ιουλίου 2009 11:56:14 πμ
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 5100
Physical Address. . . . . . . . . : 00-16-EA-6C-0D-48
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{F81850F6-95F4-4091-BC97-331105EE3
F86}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{3A408C01-4464-4172-ACFB-BC580A86A
844}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Nektarios>ping www.google.com

Pinging www.l.google.com [74.125.39.104] with 32 bytes of data:
Reply from 74.125.39.104: bytes=32 time=43ms TTL=242
Request timed out.
Reply from 192.168.0.5: Destination host unreachable.
Reply from 74.125.39.104: bytes=32 time=117ms TTL=242

Ping statistics for 74.125.39.104:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 117ms, Average = 80ms

C:\Users\Nektarios>ping 74.125.53.99

Pinging 74.125.53.99 with 32 bytes of data:
Reply from 74.125.53.99: bytes=32 time=202ms TTL=45
Request timed out.
Reply from 192.168.0.5: Destination host unreachable.
Reply from 192.168.0.5: Destination host unreachable.

Ping statistics for 74.125.53.99:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 202ms, Maximum = 202ms, Average = 202ms

[johnwill]

Time to simply call the ISP and get it fixed I would imagine.

[lorjack]

Probably a faulty modem. You can try connecting directly to it to see if the symptoms change.