Can't connect to internet ttill 15 min after startup

[Dond13]

I have a problem that seems to be getting worse. I am running Windows 7
Home Premium. I have a wired Ethernet network in the house and connect to
the internet and the home network via an AT&T Modem/Router using ATT
U-Verse. (U-Verse in itself may be the problem).

I cannot connect to the internet after a Startup or Startover until 15
minutes after either. This started out at about 5 minutes and has slowly
taken longer and I just timed it at 15 minutes. This is on my primary
computer. I have a secondary computer also connected to the internet
through the same modem/router and it doesn't have the delay. It connects to
the internet quickly. this computer is running Vista Home Premium.

I have turned off Norton Internet Security, thinking it might be the problem
but it still exists with it off. I had an earlier problem with the IPV6
Protocol and that took a while to get rid of. It turned off IPv6 and had to
remove 435 entries that had somehow got into the system. Does anyone know
of a requirement to have IPv6 working in Windows 7. I know it is required
if you use Homegroup, but I don't use that because my second computer has
Vista and Homegroup won't work unless all computers are on Windows 7.

I don't know if I have made myself clear, but does anyone have an idea about
where to look to see what is happening that causes this delay. I use
'Process Explorer', but I don't see anything out of place there.

Thanks for any help

Don D.

 

[Char Jackson]

I have a problem that seems to be getting worse. I am running Windows 7
Home Premium. I have a wired Ethernet network in the house and connect to
the internet and the home network via an AT&T Modem/Router using ATT
U-Verse. (U-Verse in itself may be the problem).

I cannot connect to the internet after a Startup or Startover until 15
minutes after either. This started out at about 5 minutes and has slowly
taken longer and I just timed it at 15 minutes. This is on my primary
computer. I have a secondary computer also connected to the internet
through the same modem/router and it doesn't have the delay. It connects to
the internet quickly. this computer is running Vista Home Premium.

I have turned off Norton Internet Security, thinking it might be the problem
but it still exists with it off. I had an earlier problem with the IPV6
Protocol and that took a while to get rid of. It turned off IPv6 and had to
remove 435 entries that had somehow got into the system. Does anyone know
of a requirement to have IPv6 working in Windows 7. I know it is required
if you use Homegroup, but I don't use that because my second computer has
Vista and Homegroup won't work unless all computers are on Windows 7.

I don't know if I have made myself clear, but does anyone have an idea about
where to look to see what is happening that causes this delay. I use
'Process Explorer', but I don't see anything out of place there.

Thanks for any help

Don D.

First, what exactly do you mean when you say you can't connect to the
Internet? The Internet isn't something you connect to, it's something
you use to connect to other hosts on the Internet. How are you
determining that you don't have a working Internet connection for 15
minutes?

My guess is that your attempt to repair an earlier IPv6 issue has left
you with a system that is confused about how it should network. It
might be waiting for something to time out, and only then does it
attempt to use IPv4. You might remove and reinstall the Windows
Networking components. While IPv6 shouldn't be needed, if it was
removed improperly it could be causing problems. Reinstall it and
leave it installed (but unused).

The good news is that 15 minutes is more than enough time to do some
troubleshooting. During the 15-minute blackout, open a Command Prompt
and if you use DHCP then run "ipconfig /all" (no quotes) to see if
your computer is waiting for an IP address to be assigned. If all of
the IP info is assigned and correct, ping the router and the second
computer. If you have connectivity to them but not to the Internet the
problem is likely with the router. Ping an IP address on the Internet
to see if you have IP connectivity. If pinging an IP address works but
accessing your mail server or a web site by name doesn't work, then
it's a DNS issue. This just scratches the surface but will hopefully
get you started.

 

[Steel]

I have a problem that seems to be getting worse. I am running Windows 7
Home Premium. I have a wired Ethernet network in the house and connect
to the internet and the home network via an AT&T Modem/Router using ATT
U-Verse. (U-Verse in itself may be the problem).

I cannot connect to the internet after a Startup or Startover until 15
minutes after either. This started out at about 5 minutes and has slowly
taken longer and I just timed it at 15 minutes. This is on my primary
computer. I have a secondary computer also connected to the internet
through the same modem/router and it doesn't have the delay. It connects
to the internet quickly. this computer is running Vista Home Premium.

I have turned off Norton Internet Security, thinking it might be the
problem but it still exists with it off. I had an earlier problem with
the IPV6 Protocol and that took a while to get rid of. It turned off
IPv6 and had to remove 435 entries that had somehow got into the system.
Does anyone know of a requirement to have IPv6 working in Windows 7. I
know it is required if you use Homegroup, but I don't use that because
my second computer has Vista and Homegroup won't work unless all
computers are on Windows 7.

I don't know if I have made myself clear, but does anyone have an idea
about where to look to see what is happening that causes this delay. I
use 'Process Explorer', but I don't see anything out of place there.

Thanks for any help

Don D.

Did you connect the machine to the ISP without the router to see if the
problem follows?

 

[Dond13]

Did you connect the machine to the ISP without the router to see if the
problem follows?

Nope, I can't. It is just one box, a modem/router. It is a 2Wire i38HG.

 

[Brian Cryer]

I have a problem that seems to be getting worse. I am running Windows 7
Home Premium. I have a wired Ethernet network in the house and connect to
the internet and the home network via an AT&T Modem/Router using ATT
U-Verse. (U-Verse in itself may be the problem).

I cannot connect to the internet after a Startup or Startover until 15
minutes after either. This started out at about 5 minutes and has slowly
taken longer and I just timed it at 15 minutes. This is on my primary
computer. I have a secondary computer also connected to the internet
through the same modem/router and it doesn't have the delay. It connects
to the internet quickly. this computer is running Vista Home Premium.

I have turned off Norton Internet Security, thinking it might be the
problem but it still exists with it off. I had an earlier problem with
the IPV6 Protocol and that took a while to get rid of. It turned off IPv6
and had to remove 435 entries that had somehow got into the system. Does
anyone know of a requirement to have IPv6 working in Windows 7. I know it
is required if you use Homegroup, but I don't use that because my second
computer has Vista and Homegroup won't work unless all computers are on
Windows 7.

For browsing the internet you will be using IPv4.

I don't know if I have made myself clear, but does anyone have an idea
about where to look to see what is happening that causes this delay. I
use 'Process Explorer', but I don't see anything out of place there.

1. When you first turn on your PC if you start a command prompt and type:
ipconfig
what does it say?

2. When you can connect to the internet, if you start a comand prompt and
type:
ipconfig
what does it say?

My guess is that its taking an age for your router to assign you an IP
address.

3. Are there any errors (which look applicable) in either the System or
Application event logs. I suspect an error with your network adapter,

 

[Dond13]

First, what exactly do you mean when you say you can't connect to the
Internet? The Internet isn't something you connect to, it's something
you use to connect to other hosts on the Internet. How are you
determining that you don't have a working Internet connection for 15
minutes?

OK, I'm using a generic term meaning that I can't connect to any host on the
internet. When I look at Network and Sharing Center on Control Panel, I see
a Red X over the Network icon indicating that I'm not 'connected to the
Internet'.

My guess is that your attempt to repair an earlier IPv6 issue has left
you with a system that is confused about how it should network. It
might be waiting for something to time out, and only then does it
attempt to use IPv4. You might remove and reinstall the Windows
Networking components. While IPv6 shouldn't be needed, if it was
removed improperly it could be causing problems. Reinstall it and
leave it installed (but unused).

It is waiting for a 'Toredo Tunneling Pseudo-Interface' to connect. I have
determined this be doing an ipconfig and ipconfig /all immediately after I
start up and then again when the 'RED X" goes away. (meaning to me I am
connected to the Internet). This appears to isolate the problem to IPv6,
because the ipconfig after the x disappears, shows that it is using an IPv6
address. This is strange because I uninstalled the IPve adapter after an
earlier problem. I had been told on another forum that this wouldn't bother
me as long as I wasn't using Homegroup for my home network I can't use
Homegroup because my 2nd computer is using Vista.

The good news is that 15 minutes is more than enough time to do some
troubleshooting. During the 15-minute blackout, open a Command Prompt
and if you use DHCP then run "ipconfig /all" (no quotes) to see if
your computer is waiting for an IP address to be assigned. If all of
the IP info is assigned and correct, ping the router and the second
computer. If you have connectivity to them but not to the Internet the
problem is likely with the router. Ping an IP address on the Internet
to see if you have IP connectivity. If pinging an IP address works but
accessing your mail server or a web site by name doesn't work, then
it's a DNS issue. This just scratches the surface but will hopefully
get you started.

After all this, what is the Microsoft Teredo Tunneling Adapter and do I need
it. I will do some more research, but do you have a quick answer. Also
what else would use IPv6 other than Homegroup in a normal home environment.

Don D

 

[Dond13]

OK, I'm using a generic term meaning that I can't connect to any host on
the internet. When I look at Network and Sharing Center on Control Panel,
I see a Red X over the Network icon indicating that I'm not 'connected to
the Internet'.

It is waiting for a 'Toredo Tunneling Pseudo-Interface' to connect. I
have determined this be doing an ipconfig and ipconfig /all immediately
after I start up and then again when the 'RED X" goes away. (meaning to me
I am connected to the Internet). This appears to isolate the problem to
IPv6, because the ipconfig after the x disappears, shows that it is using
an IPv6 address. This is strange because I uninstalled the IPve adapter
after an earlier problem. I had been told on another forum that this
wouldn't bother me as long as I wasn't using Homegroup for my home network
I can't use Homegroup because my 2nd computer is using Vista.


After all this, what is the Microsoft Teredo Tunneling Adapter and do I
need it. I will do some more research, but do you have a quick answer.
Also what else would use IPv6 other than Homegroup in a normal home
environment.

Don D

Further update. I disabled another entry in the Device Manager for
Networks. A hidden entry for the Microsoft Toredo Tunneling Pseudo-adapter.
After another startover, the time between starting up and connecting to the
internet was only about 2 minutes, which sounds almost reasonable. It did
have an entry in the ipconfig /all for the adapter but no 'Connection
specific DNS suffix'. Again, it showed an IPv6 address. I will do more
research but I still am not sure what effect my disabling this adapter will
have.

Thanks

 

[Dond13]

For browsing the internet you will be using IPv4.


1. When you first turn on your PC if you start a command prompt and type:
ipconfig
what does it say?

2. When you can connect to the internet, if you start a comand prompt and
type:
ipconfig
what does it say?

My guess is that its taking an age for your router to assign you an IP
address.

3. Are there any errors (which look applicable) in either the System or
Application event logs. I suspect an error with your network adapter,

Brian,

I won't go into it in great detail, but using the ipconfig and ipconfig /all
immediately after startup and again when connected, I have isolated the
problem. Thank you for your pointers

It seems that there is a Toredo Tunneling Pseudo-adapter that uses IPv6 that
it was looking for before enabling the internet. The ipconfig entry for the
Ethernet adapter indicated the same thing for both times - it was working
properly, but when I disabled the tunneling adapter the connection came up
within 2 minutes.

I had a previous problem with IPv6 and was told in another forum that it was
ok to uninstall this if I was not using Homegroup. I'm not because one of
my network computers is using Vista. Do you know what uses IPv6 and what
are the problems with it being disabled or uninstalled?

 

[Dond13]

Brian,

I won't go into it in great detail, but using the ipconfig and ipconfig
/all immediately after startup and again when connected, I have isolated
the problem. Thank you for your pointers

It seems that there is a Toredo Tunneling Pseudo-adapter that uses IPv6
that it was looking for before enabling the internet. The ipconfig entry
for the Ethernet adapter indicated the same thing for both times - it was
working properly, but when I disabled the tunneling adapter the connection
came up within 2 minutes.

I had a previous problem with IPv6 and was told in another forum that it
was ok to uninstall this if I was not using Homegroup. I'm not because
one of my network computers is using Vista. Do you know what uses IPv6
and what are the problems with it being disabled or uninstalled?

Just disabling the Toredo Tunneling Pseudo-Adapter didn't do the job. It
was enabled by something. I uninstalled it through the Device Manager and
this seemed to work. I'll have to see if there are any problems resulting.

Don D.

 

[Jake]

Just disabling the Toredo Tunneling Pseudo-Adapter didn't do the job. It
was enabled by something. I uninstalled it through the Device Manager and
this seemed to work. I'll have to see if there are any problems resulting.

Don D.

See <http://www.hardwaregeeks.com/board/showthread.php?t=18623>

There is one more step.

 

[Dond13]

See <http://www.hardwaregeeks.com/board/showthread.php?t=18623>

There is one more step.

I uninstalled it from within the Device Manager. I tried the 'ipv6
uninstall' from the cmd prompt and it tells me 'ipv6 is not recognized as an
internal or external command, operable program or batch file.' I am
assuming that this message is because ipv6 was already uninstalled? Anyway,
everything seems to work and I connect to the internet immediately after
startup or startover. The speed of my connection is fine and it looks as
if ipv6 is not actually necessary for any program I run or web site I use..

Don D