New Macbook Pro + Tiger Pre installed Leopard Connectivity Problems!!!

Question

hey guys... well let me try for the 2nd time to post this before it loses connection and crashes!!!!
on Friday i brought a new Macbook Pro 2.2ghz, for the last year i have been using a MAcbook 1.8ghz Core 2 Duo... worked flawless and loved it... but with Leopard out, i decided to take the plunge and move up to the next level and have something with better graphics and more features... so it seemed!
i erased the hdd and installed Leopard, which i had purchased for my Macbook, but decided to hold till i got this...
install went smoothly and got into OS and did the update center... started downloading... fine.... went and got a coffee... came back.... still on the first file of the update donwload.. hmmmmm weird.. normally be halfway or finished by now! i checked the wireless and noticed the send/receive was just hanging.. *not disconnected from the wireless router..* anyway i decided to hard reset the router and let it reconnect so it was fresh.. connected fine... started donwloading again.. same happened... anyway i left it donwload and do its stuff as i saw there was a key chain update which resolved some wireless issues.. great i thought.. Apple must have seen there is a problem and fixed it.. yay!!.......... heck no!
rebooted the laptop after install was done... SAME problem... not only that... i couldnt be on iChat/MSN for more than 5-10 minutes before it decided that it was going to fall asleep and stop doing anything before realizing that ****... someone is still wanting some connectivity.... by that time its disconnected/timed out from server/webpages... Webpages take about 15-30 seconds to load on intermitent basis...
Next is the bandwidth... i usually download between 180-205kb/s in Tiger on Macbook... in leopard im lucky to break the 100kb/s barrier for more than 30 seconds before it goes to 10-30kb/second!!!!!!!!! and upload speed is killed too!!!
i have read through various threads on the boards and have entered different tcp/rwin commands and turned off ipv6 in wireless but still same happens... no airport2 file either to remove..
i'm really annoyed as it seems from wanting to go to a better laptop ive only gone and brought defective hardware which i dont understand why Apple didn't test this prior to release
FIX IT quick please, i feel like taking this thing back... what use is it if i cant browse the internet which is a basic function on any laptop now a days yet vital it works!
maybe reinstalling Tiger is the only option left, there goes a weekend of installing programs/games/updates!!!!! annoyed

Answer 1

cheers for reply dude
will see how this gets on, also changed the channel to 6, see how that gets on..
still seems slow loading pages tho.. test from speedguide from a uk server...
683 kbps down (~0.68 Mbps, 83 KB/s) ↓
31 kbps up (~0.03 Mbps, 4 KB/s) ↑
pinging my router is
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: icmp_seq=0 ttl=255 time=1.047 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=1.097 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=1.216 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=255 time=1.114 ms
64 bytes from 192.168.1.1: icmp_seq=8 ttl=255 time=1.321 ms
64 bytes from 192.168.1.1: icmp_seq=9 ttl=255 time=1.330 ms
64 bytes from 192.168.1.1: icmp_seq=10 ttl=255 time=1.159 ms
64 bytes from 192.168.1.1: icmp_seq=11 ttl=255 time=1.189 ms
64 bytes from 192.168.1.1: icmp_seq=12 ttl=255 time=1.408 ms
64 bytes from 192.168.1.1: icmp_seq=14 ttl=255 time=7.296 ms
64 bytes from 192.168.1.1: icmp_seq=16 ttl=255 time=1.117 ms
64 bytes from 192.168.1.1: icmp_seq=17 ttl=255 time=1.167 ms
64 bytes from 192.168.1.1: icmp_seq=18 ttl=255 time=1.175 ms
64 bytes from 192.168.1.1: icmp_seq=20 ttl=255 time=1.462 ms
64 bytes from 192.168.1.1: icmp_seq=22 ttl=255 time=1.126 ms
64 bytes from 192.168.1.1: icmp_seq=25 ttl=255 time=1.126 ms
seems ok?
Although RWIN TCP/IP analyzer seems to point out problems...
MTU = 1442
MTU is not fully optimized for broadband. Consider increasing your MTU to 1500 for better throughput. If you are using a router, it could be limiting your MTU regardless of Registry settings.
MSS = 1402
MSS is not optimized for broadband. Consider increasing your MTU value.
Default TCP Receive Window (RWIN) = 65330
RWIN Scaling (RFC1323) = 0 bits
Unscaled TCP Receive Window = 65330
For optimum performance, consider changing RWIN to a multiple of MSS.
Other RWIN values that might work well with your current MTU/MSS:
515936 (MSS x 46 * scale factor of 8)
257968 (MSS x 46 * scale factor of 4)
128984 (MSS x 46 * scale factor of 2)
64492 (MSS x 46)
Your TCP Window limits you to: 2613 kbps (327 KBytes/s) @ 200ms
Your TCP Window limits you to: 1045 kbps (131 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 45 hops
TTL value is ok.
Timestamps (RFC1323) = ON
Note: Timestamps add 12 bytes to the TCP header of each packet, reducing the space available for useful data.