Teb

[piskieinboots]

Firstly, thanks tons for your help, it is much appreciated - second, what was that that I just did - with the netsh int thingy? What did it do? In short words please

[TEB]

It disabled auto tuning, basically auto tuning monitors bandwidth (and some other stuff) and optimises the amount of data received.

This is what Microsoft says on it : (warning you may loose the will to live, I did)

One of the many cool new features on Windows Vista, Receive Window Auto-Tuning enables the networking stack to receive data more efficiently than on XP. Auto-Tuning allows the operating system to continually monitor the routing conditions (bandwidth, network delay, application delay) and configure connections (scale the TCP Receiving Window) so as to maximize the network performance.In some high bandwidth, high latency links, we have seen SMB performance improvement up to 20 times!

In every TCP packet there is a "window" field, which informs the receiver how much data the sender can accept back. This window controls the flow by setting a threshold on data kept "in flight" and prevents overwhelming the receiver with data that it cannot accept.

The TCP window field is 16 bits wide, allowing for a maximum window size of 64KB, which used to meet requirements of many older networks. Nowadays, however, network interfaces can handle larger packets and keep more of them in flight at any given time. Thus, a larger TCP window has become necessary; especially on high-speed, high latency networks. To fill such a long, fat pipe and make use of the available bandwidth, the sending system can often require very large windows for good performance.

The solution to this demand is called "window scaling”, described back in 1992 in RFC 1323. It introduces an eight-bit scale factor, which serves as a multiplication factor for the window width. After the factor has been negotiated, window values used by that system on a given connection will be shifted to the left by that scale factor; a window scale of zero, thus, implies no scaling at all, while a scale factor of six implies that window sizes should be shifted six bits, thus multiplied by 2^6 = 64. Now a window greater than 64KB can be easily expressed (e.g., 128KB) by setting the scale factor (e.g., 6) and keeping the window field under the original 16 bits (here, 2048).

The window size included in all packets is modified by the scale factor, which is negotiated once at the very beginning of a TCP connection. The connection requestor suggests window scaling factor in its original SYN packet and if the SYN+ACK packet sent in response contains the option, then this particular value will be used on this connection. The scale factor cannot be changed after the initial setup handshake; remaining data transfers on this connection will implicitly use the negotiated value.

[Seahorse]

I should just nod and smile, if I were you Piskie

[TEB]

Think of it as filling a jug with water and using a funnel, if you fill it to quick the funnel overflows, auto tuning optimises the amount of water the funnel can take.

[zazen999]

So, Piskie's hole was too small?

[piskieinboots]

Piskie's pipes are tiny I tell you

[Two_Sheds]

very full and proper explanation, but I didn't get a bit of it ....(blonde)

[HayleyB]

I lost the will to live after the first sentence, but at least Piskies back with us after her triple bypass thingy

[zazen999]

My TCP never came in packets - I always wondered what I was doing wrong in life - now I know.

[HeyWayne]

I was with ya up to "one of teh many cool new features..."

Then I kinda started dribbling.

Glad the pipes are working piskie - we've* missed ya

*speaking with confidence on behalf of fellow grapes.

[piskieinboots]

still here at the mo

It has improved vastly since the downloaded-upgraded-TEBbing - but since I have a page-not-loading issue at times, I can live with 'at times' it's when it is every blinking time that I have to go and be billy no mates.

It must be a local (as in my machine) issue because others on Vista have no problems with Vine access.

If I disappear (and you notice!) please open the door again