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This is a discussion on Limited Connectivity Problem (after few time of successfull network establishment) within the Windows 7 , Windows Vista Support forums, part of the Tech Support Forum category. Dear All, Hope u all will be f9. Now a days i m in hell of trouble i think due


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Old 01-25-2011, 03:29 PM   #1
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Join Date: Jan 2011
Posts: 4
OS: Vista SP2 32-bit Home Premium



Dear All,
Hope u all will be f9. Now a days i m in hell of trouble i think due to my OS problem. I m using Window Vista 32-bit SP2 Home Premium. I am using Dell Studio 1537. I am facing this problem recently and i dont know what is the cause behind it.
The problem is with Internet Connectivity. I am using Fixed LAN i-e i am connected through my hostel LAN to my university network. when i start my computer and connect to the network, initially the connection establishes well and i can browse everything, as soon as i want to use any Voip service (Skype etc) or try to do online video streaming i loss the connection. In the network icon a yellow indication appears and shows Limited Connectivity. I am not able to connect to the network after this indication else i restart my Laptop. I tried "Diagnose and Repair" utility but at last i came across message that window can't repair it.
I also want to share some observations which can be helpful.


1st, when i connect to the network i observe almost 4 networks in "Network and Sharing Center" like Network 14, Network 7 etc. (my room mate has the same Laptop with the same OS and configuration and for him there is only one network in " Network and Sharing Center". All things are good for him).
2nd, Sometime it happens that after having this issue when i shut down my computer, it takes alot of time and at last "memory dump" message appears with blue screen and computer starts again.
3rd, it also happened that after getting Limited Connectivity message i tried to enable/disable or uninstall my NIC driver but i was not able to do so and application moved to not responding phase. When i rebooted my system then i was able to work on NIC driver.
Now i will tell you that till now what had i tried to solve the problem but all in vain:


1- I had changed the Ethernet cable and also used the same cable, connected to my Laptop, on my room mate's laptop (for him there is no problem that's mean there is no problem with the cables).
2- I had also changed the port and connect to the one my room mate is using but in vain.
3- I disabled Ipv6 to remove any conflict, if it is due to this reason. When i do so all networks in "Network and Sharing Center" disappear except one. But in my room mate's Laptop Ipv6 is enabled and he is still getting one network in "Network and Sharing Center".
4- I uninstalled and reinstalled NIC driver.
6- I updated the NIC driver.
7- I reduced the size of MTU 1500 to 1450 but same problem.


Now for me the only solution left is to reinstall OS but i don't want to do this as i have a lot of softwares and i m working on academic projects. Please help me as my exams has started and i have to do lot of things, i can't afford re-installation of OS this time. I m sending also the "ipconfig /all" result below , may be it proves helpful to understand the problem and also i have undo all the changes except MTU . Kindly help me i shall be very thankful to you.

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

Windows IP Configuration

Host Name . . . . . . . . . . . . : UmarShahzad-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : unipi.it

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : unipi.it
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-21-70-8C-72-9D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:8372:aa0e:c:bdbc:38ea:53bb:f624(Pref
erred)
IPv6 Address. . . . . . . . . . . : 2002:8372:aa29:b:bdbc:38ea:53bb:f624(Pref
erred)
IPv6 Address. . . . . . . . . . . : 2002:8372:aac3:b:bdbc:38ea:53bb:f624(Pref
erred)
IPv6 Address. . . . . . . . . . . : 2002:8372:abba:b:bdbc:38ea:53bb:f624(Pref
erred)
Site-local IPv6 Address . . . . . : fec0::b:bdbc:38ea:53bb:f624%1(Preferred)

Site-local IPv6 Address . . . . . : fec0::c:bdbc:38ea:53bb:f624%1(Preferred)

Temporary IPv6 Address. . . . . . : 2002:8372:aa0e:c:8d93:937:a4ad:b4d3(Prefe
rred)
Temporary IPv6 Address. . . . . . : 2002:8372:aa29:b:8d93:937:a4ad:b4d3(Prefe
rred)
Temporary IPv6 Address. . . . . . : 2002:8372:aac3:b:8d93:937:a4ad:b4d3(Prefe
rred)
Temporary IPv6 Address. . . . . . : 2002:8372:abba:b:8d93:937:a4ad:b4d3(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::bdbc:38ea:53bb:f624%13(Preferred)
IPv4 Address. . . . . . . . . . . : 131.114.171.97(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Lease Obtained. . . . . . . . . . : 25 January 2011 22:57:20
Lease Expires . . . . . . . . . . : 26 January 2011 01:57:21
Default Gateway . . . . . . . . . : fe80::60f1:9b6d:19ed:d3c%13
fe80::1dd6:68c2:cdca:f2ba%13
fe80::c449:ad77:48fd:e53b%13
fe80::54b1:ff12:e276:7330%13
131.114.170.1
DHCP Server . . . . . . . . . . . : 131.114.171.254
DHCPv6 IAID . . . . . . . . . . . : 218112368
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-8C-9B-2F-00-21-70-8C-72-9D

DNS Servers . . . . . . . . . . . : 131.114.21.15
131.114.21.25
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : masterlan
Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card
Physical Address. . . . . . . . . : 00-22-5F-46-74-F6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : unipi.it
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* 16:

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* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.masterlan
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
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Old 01-25-2011, 04:48 PM   #2
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OS: Windows 10 64 bit

My System


Hit the Windows key +R in the Run box type CMD and hit enter. In the Command Prompt type ipconfig /release and hit enter. The IP Address will read 0.0.0.0 Now type ipconfig /flushdns and hit enter. Now type ipconfig /renew and hit enter. Now type ipconfig /all the DNS Server IP address should be the same IP address as the DHCP Server.
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Old 01-26-2011, 02:57 AM   #3
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Join Date: Jan 2011
Posts: 4
OS: Vista SP2 32-bit Home Premium



Thanx for such a quick reply, i really appreciate it and very thankful to you(spunk.funk). I have done what u have suggested and below is the result. Now i will observe my network and will let u if it cured. DHCP and DNS server addresses are different (highlighted below).


Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /release

Windows IP Configuration

No operation can be performed on Wireless Network Connection while it has its me
dia disconnected.

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2002:8372:aac3:b:bdbc:38ea:53bb:f624
IPv6 Address. . . . . . . . . . . : 2002:8372:ab55:b:bdbc:38ea:53bb:f624
Site-local IPv6 Address . . . . . : fec0::b:bdbc:38ea:53bb:f624%1
Temporary IPv6 Address. . . . . . : 2002:8372:aac3:b:5595:7658:caec:67ac
Temporary IPv6 Address. . . . . . : 2002:8372:ab55:b:5595:7658:caec:67ac
Link-local IPv6 Address . . . . . : fe80::bdbc:38ea:53bb:f624%13
Default Gateway . . . . . . . . . : fe80::5a3:37f9:95aa:82d9%13
fe80::c449:ad77:48fd:e53b%13

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : masterlan

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Local Area Connection* 16:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

C:\Windows\system32>ipconfig /flushdns

Windows IP Configuration

Successfully flushed the DNS Resolver Cache.

C:\Windows\system32>ipconfig /renew

Windows IP Configuration

An error occurred while renewing interface Local Area Connection : 0x80ef0005.
No operation can be performed on Wireless Network Connection while it has its me
dia disconnected.


C:\Windows\system32>ipconfig /renew

Windows IP Configuration

No operation can be performed on Wireless Network Connection while it has its me
dia disconnected.

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : unipi.it
IPv6 Address. . . . . . . . . . . : 2002:8372:aa0e:c:bdbc:38ea:53bb:f624
IPv6 Address. . . . . . . . . . . : 2002:8372:aac3:b:bdbc:38ea:53bb:f624
IPv6 Address. . . . . . . . . . . : 2002:8372:ab55:b:bdbc:38ea:53bb:f624
Site-local IPv6 Address . . . . . : fec0::b:bdbc:38ea:53bb:f624%1
Site-local IPv6 Address . . . . . : fec0::c:bdbc:38ea:53bb:f624%1
Temporary IPv6 Address. . . . . . : 2002:8372:aa0e:c:5595:7658:caec:67ac
Temporary IPv6 Address. . . . . . : 2002:8372:aac3:b:5595:7658:caec:67ac
Temporary IPv6 Address. . . . . . : 2002:8372:ab55:b:5595:7658:caec:67ac
Link-local IPv6 Address . . . . . : fe80::bdbc:38ea:53bb:f624%13
IPv4 Address. . . . . . . . . . . : 131.114.171.97
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Default Gateway . . . . . . . . . : fe80::5a3:37f9:95aa:82d9%13
fe80::c449:ad77:48fd:e53b%13
fe80::60f1:9b6d:19ed:d3c%13
131.114.170.1

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : masterlan

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : unipi.it

Tunnel adapter Local Area Connection* 16:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : UmarShahzad-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : unipi.it

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : unipi.it
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : 00-21-70-8C-72-9D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:8372:aa0e:c:bdbc:38ea:53bb:f624(Pref
erred)
IPv6 Address. . . . . . . . . . . : 2002:8372:aac3:b:bdbc:38ea:53bb:f624(Pref
erred)
IPv6 Address. . . . . . . . . . . : 2002:8372:ab55:b:bdbc:38ea:53bb:f624(Pref
erred)
Site-local IPv6 Address . . . . . : fec0::b:bdbc:38ea:53bb:f624%1(Preferred)

Site-local IPv6 Address . . . . . : fec0::c:bdbc:38ea:53bb:f624%1(Preferred)

Temporary IPv6 Address. . . . . . : 2002:8372:aa0e:c:5595:7658:caec:67ac(Pref
erred)
Temporary IPv6 Address. . . . . . : 2002:8372:aac3:b:5595:7658:caec:67ac(Pref
erred)
Temporary IPv6 Address. . . . . . : 2002:8372:ab55:b:5595:7658:caec:67ac(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::bdbc:38ea:53bb:f624%13(Preferred)
IPv4 Address. . . . . . . . . . . : 131.114.171.97(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.254.0
Lease Obtained. . . . . . . . . . : 26 January 2011 11:44:59
Lease Expires . . . . . . . . . . : 26 January 2011 13:45:57
Default Gateway . . . . . . . . . : fe80::5a3:37f9:95aa:82d9%13
fe80::c449:ad77:48fd:e53b%13
fe80::60f1:9b6d:19ed:d3c%13
131.114.170.1
DHCP Server . . . . . . . . . . . : 131.114.171.254
DHCPv6 IAID . . . . . . . . . . . : 218112368
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-8C-9B-2F-00-21-70-8C-72-9D

DNS Servers . . . . . . . . . . . : 131.114.21.15
131.114.21.25

NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : masterlan
Description . . . . . . . . . . . : Dell Wireless 1397 WLAN Mini-Card
Physical Address. . . . . . . . . : 00-22-5F-46-74-F6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : unipi.it
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* 16:

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* 11:

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

C:\Windows\system32>
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Old 01-26-2011, 04:36 PM   #4
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OS: Vista SP2 32-bit Home Premium



I am still facing the same problem, plz help me.
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Old 01-26-2011, 05:37 PM   #5
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Posts: 40,630
OS: Windows 10 64 bit

My System


Go to Control Panel/Internet Options/Connections/LAN Settings make sure everything is un-checked. Now go to Control Panel/Network and Sharing/Change Adapter Settings Right click the Local Area Connection and choose Properties. Scroll Down to IPV4 and 6 (TCP/IP) and choose Properties. Make sure Obtain an IP Address Automatically and Obtain DNS Server Address Automatically are checked. Do the ipconfig /release and /renew again.
Your Default Gateway (your router) should be the same IP address as your DHCP server DNS server
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Old 01-28-2011, 09:31 AM   #6
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Posts: 4
OS: Vista SP2 32-bit Home Premium



I have done all u suggested and it was same as u said. I also checked the configuartion of my mate's laptop, DNS and DHCP server are also different for him but for him internet is working absolutely f9.
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