Sometimes DSL got disconnected

[ahmadali06]

Sometimes the DSL got disconnected and then after restarting pc its fine and connected to internet. I'm using Window 7. For more information I have attached the image file.

[nicole_kidman]

ya sometimes it happens wid me also but after restarting the system it is connected....it might be a connection error.

[johnwill]

Please supply the following info, exact make and models of the equipment please.

Name of your ISP (Internet Service Provider).
Make and exact model of the broadband modem.
Make and exact model and hardware version of the router (if a separate unit).
Make and exact model and hardware version of any other network equipment, like a repeater, a booster, hi-gain antenna, etc.
Model numbers can usually be obtained from the label on the device.
Connection type, wired or wireless.
If wireless, encryption used, (none, WEP, WPA, or WPA2)
Version and patch level of Windows on all affected machines, i.e. XP (Home or Pro), SP1-SP2-SP3, Vista (Home, Business, Ultimate), etc.
The Internet Browser in use, IE, Firefox, Opera, etc.




Please give an exact description of your problem symptoms, including the exact text of any error messages.

• If you're using a wireless connection, have you tried a direct connection with a cable to see if that changes the symptoms?
• For wireless issues, have you disabled all encryption on the router to see if you can connect that way?
• For wireless laptops, have you made SURE the wireless switch is on?
• For wired connection issues, have you booted in Safe Mode with Networking to see if that changes the symptoms?
• Have you connected directly to the broadband modem to see if this is a router or modem/ISP issue?
• If there are other computers on the same network, are they experiencing the same issue, or do they function normally?

On any affected computer, I'd also like to see this:

Hold the Windows key and press R, then type CMD (COMMAND for W98/WME) to open a command prompt:

Type the following commands on separate lines, following each one with the Enter key:

PING 74.125.45.100

PING yahoo.com

NBTSTAT -n

IPCONFIG /ALL

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

[ahmadali06]

Its working fine on laptop and mobile there might be problem with this pc

[ahmadali06]

My computer is connected through router
Modem is provided by the DSL company
Router is Netgear WGT624 v3

MSDos
Pinging 74.125.45.100 with 32 bytes of data:
Reply from 74.125.45.100: bytes=32 time=303ms TTL=48
Reply from 74.125.45.100: bytes=32 time=302ms TTL=48
Reply from 74.125.45.100: bytes=32 time=303ms TTL=48
Reply from 74.125.45.100: bytes=32 time=302ms TTL=48

Ping statistics for 74.125.45.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 302ms, Maximum = 303ms, Average = 302ms

C:\Users\Ahmad>ping yahoo.com

Pinging yahoo.com [209.191.93.53] with 32 bytes of data:
Reply from 209.191.93.53: bytes=32 time=299ms TTL=44
Reply from 209.191.93.53: bytes=32 time=299ms TTL=44
Reply from 209.191.93.53: bytes=32 time=297ms TTL=44
Reply from 209.191.93.53: bytes=32 time=298ms TTL=44

Ping statistics for 209.191.93.53:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 297ms, Maximum = 299ms, Average = 298ms

C:\Users\Ahmad>nbtstat -n

Local Area Connection:
Node IpAddress: [192.168.2.2] Scope Id: []

[johnwill]

Please read my previous post and provide the other 90% of the information I asked for. And, just because the DSL company provided the modem, that doesn't preclude you from telling us the make and model, right?

[ahmadali06]

Model of the broadband modem:Shiro ADSL 2+ Firmware version:134.100.1p-001
Model of Router:Netgear WGT624 v3
Currently I'm using Window 7 Ultimate and safari as a default bowser

I'm connected to internet through wire and other pc which is wireless is working alright

[johnwill]

OK, so the router's wireless works for another computer, and this computer connects using a wired connection, correct?

Remove all the stored wireless network profiles and search for a new network. You should be prompted for the encryption key.

[ahmadali06]

This computer is connected through wire so it don't to search for a network it is automatically connected when wire is attached.

[johnwill]

Sorry, got my posts crossed with another thread. For the non-working computer, I want to see the ping tests I asked for, specifically.


Try these simple tests.

Hold the Windows key and press R, then type CMD (COMMAND for W98/WME) to open a command prompt:

In the command prompt window that opens, type type the following commands one at a time, followed by the Enter key:

NOTE: For the items below in red surrounded with < >, see comments below for the actual information content, they are value substitutions from the previous IPCONFIG command output! Do NOT type <computer_IP_address> into the command, that won't work. Also, the < and > in the text is to identify the parameters, they are also NOT used in the actual commands.

Do NOT include the <> either, they're just to identify the values for substitution.

IPCONFIG /ALL

PING <computer_IP_address>

PING <default_gateway_address>

PING <dns_servers>

PING 74.125.45.100

PING yahoo.com

Right click in the command window and choose Select All, then hit Enter to copy the contents to the clipboard.
Paste the results in a message here.

<computer_IP_address> - The IP Address of your computer, obtained from the IPCONFIG command above. (For Vista/Win7, the IPv4 Address)

<default_gateway_address> - The IP address of the Default Gateway, obtained from the IPCONFIG command above.

<dns_servers> - The IP address of the first (or only) address for DNS Servers, obtained from the IPCONFIG command above.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

[ahmadali06]

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Ahmad>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Ahmad-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 . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 00-1C-C0-D0-A1-68
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d1b1:f899:b3dd:4fe9%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Monday, November 09, 2009 12:08:32 AM
Lease Expires . . . . . . . . . . : Monday, November 09, 2009 5:21:34 PM
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DHCPv6 IAID . . . . . . . . . . . : 234888384
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-7C-2D-5D-00-1C-C0-D0-A1-68

DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{9CBC10E0-662B-40F4-9C00-97B3398EBCA7}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 11:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e50:831:a8e:8867:ca9e(Prefer
red)
Link-local IPv6 Address . . . . . : fe80::831:a8e:8867:ca9e%13(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Ahmad>ping 192.168.2.3

Pinging 192.168.2.3 with 32 bytes of data:
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.2.3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Ahmad>ping 192.168.2.1

Pinging 192.168.2.1 with 32 bytes of data:
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.2.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Ahmad>ping 192.168.2.1

Pinging 192.168.2.1 with 32 bytes of data:
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.2.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Ahmad>ping 74.125.45.100

Pinging 74.125.45.100 with 32 bytes of data:
Reply from 74.125.45.100: bytes=32 time=349ms TTL=47
Reply from 74.125.45.100: bytes=32 time=348ms TTL=47
Reply from 74.125.45.100: bytes=32 time=346ms TTL=47
Reply from 74.125.45.100: bytes=32 time=349ms TTL=47

Ping statistics for 74.125.45.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 346ms, Maximum = 349ms, Average = 348ms

C:\Users\Ahmad>ping yahoo.com

Pinging yahoo.com [69.147.114.224] with 32 bytes of data:
Reply from 69.147.114.224: bytes=32 time=261ms TTL=48
Reply from 69.147.114.224: bytes=32 time=260ms TTL=48
Reply from 69.147.114.224: bytes=32 time=262ms TTL=48
Reply from 69.147.114.224: bytes=32 time=260ms TTL=48

Ping statistics for 69.147.114.224:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 260ms, Maximum = 262ms, Average = 260ms

[johnwill]

You have Internet connectivity there, is this when you can't connect? We need to see the test when you can't connect.

[ahmadali06]

My previous post was when I was connected to Internet.
Now I'm posting when I was not able to connect to Internet
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Ahmad>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Ahmad-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 . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : 00-1C-C0-D0-A1-68
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d1b1:f899:b3dd:4fe9%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.2.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, November 10, 2009 12:33:08 AM
Lease Expires . . . . . . . . . . : Tuesday, November 10, 2009 6:29:54 PM
Default Gateway . . . . . . . . . : 0.0.0.0
192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DHCPv6 IAID . . . . . . . . . . . : 234888384
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-7C-2D-5D-00-1C-C0-D0-A1-6

DNS Servers . . . . . . . . . . . : 192.168.2.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{9CBC10E0-662B-40F4-9C00-97B3398EBCA7}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
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. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Ahmad>ping 192.168.2.3

Pinging 192.168.2.3 with 32 bytes of data:
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128
Reply from 192.168.2.3: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.2.3:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Users\Ahmad>ping 0.0.0.0

Pinging 0.0.0.0 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

Ping statistics for 0.0.0.0:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Users\Ahmad>ping 192.168.2.1

Pinging 192.168.2.1 with 32 bytes of data:
Reply from 192.168.2.1: bytes=32 time=1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64
Reply from 192.168.2.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.2.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms

C:\Users\Ahmad>ping 74.125.45.100

Pinging 74.125.45.100 with 32 bytes of data:
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.

Ping statistics for 74.125.45.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

C:\Users\Ahmad>ping yahoo.com

Pinging yahoo.com [69.147.114.224] with 32 bytes of data:
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.
Reply from 192.168.2.3: Destination host unreachable.

Ping statistics for 69.147.114.224:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

C:\Users\Ahmad>

[johnwill]

Since you're getting a DHCP address, and the system is able to resolve yahoo.com to the correct IP address, this appears to be a firewall issue of some kind.

Disable ALL firewalls and see if you can connect.

[ahmadali06]

By disabling firewall computer will vulnerable to more threats i.e hacking
Anyways i want to tell you that i am having kaspersky internet security 2010 so with disabling firewall is there risk of my pc getting infected.
Thank you for your support

[johnwill]

You have a firewall in the router, turning off the firewall is not an issue if you're not already infected.

FWIW, I haven't used a software firewall in years, all I have is the router. It's never been an issue.

[ahmadali06]

I have turned off windows firewall of home and public network both, I will let you know if the problem still persists.

[ahmadali06]

Again the same problem even after turning off firewall

[johnwill]

If you boot in Safe Mode with Networking, does it work that way?

If not, please post a HijackThis 2.00.2 Log here.

[ahmadali06]

When i log in windows like normal way sometimes this problem comes and sometimes it works fine without any problems.
The problem comes of multiple networks for which on top i have attached image file also.