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No Internet :'(

Last response: in Networking
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December 1, 2011 5:31:54 PM

Hi guys i recently ran into a problem with my computer internet

my router gives me a ip address through DHCP, a defalt gatway, DNS server and subnet mask and all other setting i need. but the internet icon in the bottom right has a ! on it all the time. the network and sharing center says im connected to my router but i dont have an internet connection. i also cant see any other devise on my network.

this happens with a wired or wireless connection and all other computers on the network work fine, its just this one. its a custom PC so i thought it could be a hardware problem but my internet normally works fine during the day and normally stops during peak hours? it is possible that my ISP is blocking just this computer?

pinging my router normally gets 100% loss but once it did say 75% loss?

i just cant think of what is causing this, all drivers are the latest. help?



C:\Users\Sean>ipconfig /all

Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NETGEAR WNDA3100v2 N600 Wireless Dual Ban
d USB Adapter
Physical Address. . . . . . . . . : E0-91-F5-55-44-E2
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::2943:126e:a590:c651%14(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 01 December 2011 18:50:17
Lease Expires . . . . . . . . . . : 08 December 2011 19:10:01
Default Gateway . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 450925045
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-61-4B-D6-F4-6D-04-20-F2-F9

DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-02-72-D5-7F-A1
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{D56A4ADC-8C8C-4FCD-AA78-C9BDA626C599}:

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 isatap.{08E2D128-C158-4197-A7E1-13D36875088E}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

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

More about : internet

December 1, 2011 11:53:13 PM

What's the result of ipconfig /all on a working PC? I presume that pinging other PCs on your network also fails?

Your ISP doesn't have control over local connectivity.
m
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l
December 2, 2011 5:51:28 AM

GhislainG said:
What's the result of ipconfig /all on a working PC? I presume that pinging other PCs on your network also fails?

Your ISP doesn't have control over local connectivity.


Yea pinging anthing on the network fails, I will do the other ipconfig for ya later when I get home, thanks for your help!

Oh and i have also reset win sock
m
0
l
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December 2, 2011 11:55:40 AM

here the ipconfig /all on a working dell laptop

Windows IP Configuration

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

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-25-56-E3-22-76
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : 00-22-5F-EF-CE-0D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card
Physical Address. . . . . . . . . : 00-22-5F-EF-CE-0D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8590:6070:30fa:9f31%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 02 December 2011 13:50:26
Lease Expires . . . . . . . . . . : 09 December 2011 13:50:26
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 218112607
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-DE-E2-8A-00-25-64-56-80-93

DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : Marvell Yukon 88E8040 PCI-E Fast Ethernet
Controller
Physical Address. . . . . . . . . : 00-25-64-56-80-93
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.Belkin:

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* 9:

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. . . . . . . . . . . : 2001:0:5ef5:79fd:1460:37a8:3f57:fefb(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::1460:37a8:3f57:fefb%12(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{FB9FDF3B-F634-429B-BA36-9581CA4A7B90}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
m
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l
December 2, 2011 11:58:47 AM

all i can see is the DHCP server has given it an im but there's no listed DHCP server for some reason, could that be the cause? how would i go about fixing it?
m
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l
December 2, 2011 1:00:27 PM

You may have a problem with the DHCP server. Power off the router for a couple minutes and then check if the issue is resolved.

You could also use "route print" to check the routing table and the default gateway.
m
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l
December 2, 2011 1:10:06 PM

Turn off your firewall also to rule that out.
m
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l
December 3, 2011 1:56:36 PM

ive tried with a different router before and have the same problem, i tried with both router and pc firewall turned off and still have the same result

route print shows

C:\Users\Sean>route print
===========================================================================
Interface List
18...e0 91 f5 55 44 e2 ......NETGEAR WNDA3100v2 N600 Wireless Dual Band USB Ada
pter
15...f4 6d 04 20 f4 ea ......Intel(R) 82583V Gigabit Network Connection
13...f4 6d 04 20 f2 f9 ......Intel(R) 82579V Gigabit Network Connection
11...00 02 72 d5 7f a1 ......Bluetooth Device (Personal Area Network)
1...........................Software Loopback Interface 1
12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
16...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
17...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #4
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.3 30
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
169.254.0.0 255.255.0.0 On-link 169.254.139.216 276
169.254.139.216 255.255.255.255 On-link 169.254.139.216 276
169.254.255.255 255.255.255.255 On-link 169.254.139.216 276
192.168.1.0 255.255.255.0 On-link 192.168.1.3 286
192.168.1.3 255.255.255.255 On-link 192.168.1.3 286
192.168.1.255 255.255.255.255 On-link 192.168.1.3 286
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 169.254.139.216 276
224.0.0.0 240.0.0.0 On-link 192.168.1.3 286
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 169.254.139.216 276
255.255.255.255 255.255.255.255 On-link 192.168.1.3 286
===========================================================================
Persistent Routes:
None

IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 306 ::1/128 On-link
13 276 fe80::/64 On-link
18 286 fe80::/64 On-link
18 286 fe80::2943:126e:a590:c651/128
On-link
13 276 fe80::ac20:3778:569:8bd8/128
On-link
1 306 ff00::/8 On-link
13 276 ff00::/8 On-link
18 286 ff00::/8 On-link
===========================================================================
Persistent Routes:
None

C:\Users\Sean>
m
0
l
December 3, 2011 3:19:29 PM

We're only interested in the IPv4 route table.

For some unknown reason, you don't have a persistent route. I should look like:

Network Address Netmask Gateway Address Metric
0.0.0.0 0.0.0.0 192.168.1.1 Default

Is is the same on other PCs?
m
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l
December 3, 2011 3:47:54 PM

yea all the other PCs have no persistent route's either?
m
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l
December 3, 2011 4:48:40 PM

Is there software installed on that system that isn't installed on the working system?

Do you have the same issue when using either Ethernet port? If so, what happens if you manually configure the interface instead of using DHCP?
m
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l
December 4, 2011 6:08:21 AM

yea there's Steam, a few games and Adobe CS5 installed on the system that doesn't work but everything else is more or less the same

yea, it doesn't matter what port I use, I always have the same problem. yea manual config doesn't make a difference

after you said about the persistent routes i set one up manually and that seems to have fixed it. Thanks so much for your help!
m
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l
December 4, 2011 12:09:46 PM

Glad to know that adding the persistent route resolves the issue, but I still don't know what's causing it in the first place. I've added permanent routes to systems having more than one interface, but I never had to do it in a home environment.
m
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l
December 4, 2011 2:37:04 PM

i have more than one interface, power line ethernet and because that sometimes was causing some problems due to having 2 fuse boxes I have a wireless adapter plugged in as well, and sometimes there both connected to the same router
m
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l
December 4, 2011 3:19:42 PM

Having 2 interfaces connected to the same router doesn't always work smoothly.
m
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l
!