Vista Tutorial - Windows Live Messenger Sign In error

**Brink**

How to Fix the Windows Live Messenger Unable to Sign In Error in Vista

Information

Vista's TCP Auto Tuning networking doesn't work well with some routers or other network devices. Thus, causing a connection error for Windows Live Messenger.

FOR THIS ERROR MESSAGE ONLY:

We were unable to sign you in to Windows Live Messenger, possibly because of a problem with the service of with your internet connections. Please make sure you are connected to the Internet. Error code 81000306.

NOTE

Make sure that you have the latest released version of Windows Live Messenger installed to help avoid having problems. See: Windows Live Suite Downloads

RELATED LINKS:

Here's How:

NOTE

Make sure you have your firewall program setup to allow Windows Live Messenger (msnmsgr.exe) In and Out access to the internet. If this doesn't solve the problem, then continue. If your using Windows Firewall, see: How to Change Windows Firewall Settings in Vista

1. Open a elevated command prompt.

2. In the elevated command prompt, type:
netsh int tcp set global autotuninglevel=disabled
NOTE: To undo this, type: netsh int tcp set global autotuninglevel=normal instead.

3. Press Enter. (See screenshot below)

4. You will get a OK message back. If not, repeat step 2.

5. Logoff and logon, or restart your computer to apply the changes.

That's it,
Shawn

doob · 10-12-2007

Nice 1 Shawn absolutely spot on, worked first time with no probs

Cheers doob

deadcat · 10-12-2007

excellent Shawn, joined the forum just to say thanks.

**Brink** · 10-12-2007

Your welcome doob and deadcat,

Welcome to the forum.

Glad to hear that it helped you. Thank you for the feedback.

Shawn

crazymonkey · 10-17-2007

I actually tried this from another website, but they didn't mention restart computer...
made me try out so many other methods...

anyway Thank you so much.

**Brink** · 10-17-2007

Your welcome CrazyMonkey,

I could see how that could make you CRAZY.

Glad to hear that it resolved your problem. Thank you for the feedback.

Shawn

AH1Z_BMAN · 10-23-2007

If u disable this auto tuning thing to do ith the TCP, does this harm your computer in any way, say of like getting viruses easier or people hacking onto your computer?
Cheers

AH1Z_BMAN · 10-23-2007

ey thanks for the help., it works nicely.

Just wondering though, if u do diable to auto tuning for the TCP, does this mean that your computer is in more harm of gtting viruses or people hacking on? or is it 100% safe.

**Brink** · 10-23-2007

Hi AH1Z BMAN,

Welcome to the forum.

Glad it helped you.
No, it will not put your computer at any higher risk.

The TCP receive window size is the amount of data that a TCP receiver (your computer) allows a TCP sender (other internet or local network computer) to send before having to wait for an acknowledgement. After the connection is established, the receive window size is advertised in each TCP segment. Advertising that maximum amount of data that the sender can send is a receiver-side flow control mechanism that prevents the sender from sending data that the receiver cannot handle. A sending host can only send at a maximum the amount of data advertised by the receiver before waiting for an acknowledgment and a receive window size update. Auto Tuning adjusts the receive windows size continually based upon the changing network conditions. Sometimes this can cause problems with some programs.

Shawn

dru2000au2000 · 12-25-2007

Hey all. i have tried running messanger as admin, i ran command prompt and entered string, rebooted but to no avail. have reset it to normal and opened messenger as admin but no luck. retry it keeps telling me. it tells me that my gateway is offline. my broadband is fine, i.e. i can surf the net. help!