>From: "Andrew" <ac.macc@ihug.co.nz>
>So tonight I tried reducing my MTU size and guess what, the site started
>working for transactions through Jetstart!
>I haven't worked out the optimum MTU size yet, I was pretty brutal and cut
>it in half to 750 initially, but I guess the GRE packet size of 1476 will
>prove to be the functional limit.

Umm, previously you said this...

>I am using a Alcatel Speedtouch Pro configured as a router (Gv8bab3.281
>firmware), Windows XP, IE6 and having difficulties with the Nationalbank
>NZ online banking site.

So theoretically you don't have an MTU issue, but changing the MTU to 750
will change the dynamics of TCP communication in other ways.

What result do you get with an MTU of say 1450 - starts failing again?

BG.

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