Hi mfara57
please backup your registry before using this.and please only advanced pc users who are competent with the windows registry use this.these are the optimal RWIN settings for me,it may not be correct for you!
it sometimes improves upload speeds to set your default send window to the same as your default recieve window.
RWIN (TCP Receive Window) is a buffer that determines how much data the receiving computer is prepared to get at one time.
A RWIN value that's too large will result in greater loss of data if a packet is lost or damaged. A too small RWIN will be very slow, as each packet will have to be acknowledged before the next packet is sent.
RWIN is one of the most important parameters in tweaking any TCP/IP connection.
to determine the optimal RWIN manually, you can perform the following calculations:
1. Determine MSS (this can be done by using
SG TCP Analyzer), maximum anticipated latency and advertised maximum bandwidth.
(for example, 1460 MSS, 300ms max latency, 6Mbit/s max bandwidth).
2. Find the unscaled RWIN value (largest even multiple of MSS less than 65535):
65535 / 1460 (MSS) = 44.9
round down to even number = 44
44 x 1460 = 64240 (this is the optimal
unscaled RWIN value for broadband connections)
3. Multiply the unscaled RWIN by 2 until it is larger than BDP
Our BDP for 6Mbps @ 300 latency is:
6000 kbps x 300ms = 1800000 / 8 = 225000
64240 (unscaled RWIN) x 2 x 2 ... =
256960 (number larger than BDP, this is the optimal RWIN)
a far simpler method for most users(although no where near as accurate)is to use one of the pre programmed untilities such as tcpoptimizer or cablenut.
with regards to a channel on hotbird that wont stream the english audio,well none of them will if english is the second audio option,but for testing i just tried sky cinema 1 and this streams in the italian language.ian.
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