Internet connectivity issue

G

Guest

So here's the issue I've run into both on RC1 and the public beta from
earlier...

I connect up to my network fine, pull an ip, able to browse shares and such,
can even ping web sites but when opening Internet Explorer and trying to
actually browse, the computer fails to find the site. I even see the browser
status bar acknowledge a dns lookup by telling me the external ip of the page
it's trying to hit but again, nothing ever loads. The other computers on the
network have no issue of course. Another interesting thing was even though I
was unable browse various web sites, I was able to download an update to
Defender during my troubleshooting so it almost seems as if by default, some
level of security is preventing me from leaving the safety of my private
network.

To add some background, the first time I saw the issue was while playing
with the public beta. It was after a few weeks of normal use when all of a
sudden I couldn't get out of the network no matter how hard I tried. This
time with RC1, it started right after the initial install. I've done some
browsing of forums and articles and such but haven't found anything detailing
my issue so I thought it best to toss a question out there. I saw mention in
another thread asking about the type of network card being usedso let me add
that here too. In my first setup it was a Realtek card and this time it's a
Marvell.

Any thoughts?
 
S

Sergej

right-click on cmd.exe
select to run it as administrator
and execute this command "netsh int tcp set global autotuninglevel=disabled"
without quotes ofcorse.

that helped me sort it out.
 
G

Gary

Does that command permenantly disable that autotuning thing or do I have to
redo it everytime I startup?
 
J

Jane C

Permanent. If you later want to 'undo' it, then it's "netsh int tcp set
global autotuninglevel=normal"
 
G

Gary

Cool, thanks for the tip.
What does that setting do anyway?

I'm having the issue where after a certain amount of time (hours), internet
activity on browsing/email etc ceases to function, but other computers
connected on the network still get internet. I thought maybe it might fix
that up, but will have to let it run overnight to see.
 
G

Guest

I'm having a similar issue and your suggestion didn't fix my problem. Here's
an example:

I can open up IE and type in http://www.yahoo.com and the page
renders/displays just fine. Although, when I try to navigate using any link
on the page, it appears to try to access the link (you see it down in the
status bar) but the page times out with the page cannot be displayed error.
DNS is working fine and from the command line I can resolve/ping domains no
problem. PC is behind a Linksys router which is connected to a Comcast cable
modem. I've got a laptop connected to the same router running XP and don't
have any problems whatsoever with it. I had this same problem with Vista Pre
RC1 and was hoping it would be fixed by now. Any other suggestions?
 
J

Jane C

Did you reboot after doing the "netsh int tcp set global
autotuninglevel=disabled" command?

Jane, not plain ;) 64 bit enabled :)
Batteries not included. Braincell on vacation :)
 
G

Gary

It's not 100% conclusive yet, but it seems that fix fixed my issue with
internet connectivity (only in browser and mail) dying after quite a few
hours or something. It seemed it always died overnight. Today though I get
on and everything's still working great.
 
G

Guest

I found this on http://www.longhornblogs.com/
I thought my problem was my Linksys router but it was really my network
card. I have an onboard Marvell Yukon NIC on my Asus AV8. This fix worked
for me.

Anyone who has installed Vista 5536 on a machine with a Marvell Yukon NIC
knows that it has issues, you cannot browse websites or really do anything
functional on the network. One easy way to fix it is to of course install
the XP NIC Drivers. The other way however, lets you keep the Vista driver
and just fix the root of the problem. Here's how to do it:

1. Go to Start -- Run and type "devmgmt.msc" without quotes.
2. Expand Network Adapters
3. Right Click the Marvell device and go to properties.
4. Click on the advanced tab.
5. Select IPv4 Checksum Offload and set the Value to Disabled.
6. Hit ok and enjoy!

NOTE: This may also work for people who have Realtek network devices and are
experiencing hard system lock-ups when doing anything on the network. No
promises there but I can confirm this works 100% for Marvell.
 
J

J.P. Stewart [MSFT]

Additionally if you have a Marvell NIC in 5536 AND then upgrade to 5600, you
will have to uninstall the device (in devmgmt) and then click scan (in
devmgmt) so that it gets installed again. Otherwise the device will not work
properly.

This bug has already been fixed in current builds.
 
G

Gary

I have the Marvell NIC (onboard) on my other system (A8N-SLI) and had that
issue, but the other Nvidia Nforce onboard NIC wasn't being used so just did
a simple change. But at least I can incorporate that fix now incase I do use
the Marvel. Nice find :)
 
G

Guest

OK, I have a question.... I have the Marvell Yukon NIC. I could not connect
to most website, but could to a select few. I DL'ed & installed the drivers
from Yukon for my 32bit RC1 installation. This seemed to fix my concern.
However, I could not connect to a specific website...namely
https://secure.spiritbank.com. So I have been searching and found this "fix".
I applied it and now I am able to connect to and display that page.

So, my question is......
What is "autotuning" and how did you come to find that fix? It seems to have
worked for me and I do appreciate it. THANK YOU Sergej!!!!!!
 
G

Guest

OK, I have a question.... I have the Marvell Yukon NIC. I could not connect
to most website, but could to a select few. I DL'ed & installed the drivers
from Yukon for my 32bit RC1 installation. This seemed to fix my concern.
However, I could not connect to a specific website...namely
https://secure.spiritbank.com. So I have been searching and found this "fix".
I applied it and now I am able to connect to and display that page.

So, my question is......
What is "autotuning" and how did you come to find that fix? It seems to have
worked for me and I do appreciate it. THANK YOU Sergej!!!!!!
 
G

Guest

OK, I have a question.... I have the Marvell Yukon NIC. I could not connect
to most website, but could to a select few. I DL'ed & installed the drivers
from Yukon for my 32bit RC1 installation. This seemed to fix my concern.
However, I could not connect to a specific website...namely
https://secure.spiritbank.com. So I have been searching and found this "fix".
I applied it and now I am able to connect to and display that page.

So, my question is......
What is "autotuning" and how did you come to find that fix? It seems to have
worked for me and I do appreciate it. THANK YOU Sergej!!!!!!
 
G

Guest

OK, I have a question.... I have the Marvell Yukon NIC. I could not connect
to most website, but could to a select few. I DL'ed & installed the drivers
from Yukon for my 32bit RC1 installation. This seemed to fix my concern.
However, I could not connect to a specific website...namely
https://secure.spiritbank.com. So I have been searching and found this "fix".
I applied it and now I am able to connect to and display that page.

So, my question is......
What is "autotuning" and how did you come to find that fix? It seems to have
worked for me and I do appreciate it. THANK YOU Sergej!!!!!!
 
G

Guest

Sorry about the duplicates, guys. It told me several time that the post
failed & to try again. By the time it went through. it had gone through 5
times.

Slaton
 

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