Rubicon: If there are missing packets, it could be a routing or firewall issue. If the packets have been altered during transit, it could be due to misconfiguration in Telstra Clear's infamous 'transparent' proxy.

freitasm: It is one of my own servers. I am not too sure we should get Datacom involved at the moment as everything points out to something on TelstraClear perimeter causing this. As I said it works just fine when I connect from other networks.

freitasm: Sure, but how come this only happens on a TelstraClear connection?

muppet:

freitasm: Sure, but how come this only happens on a TelstraClear connection?

Don't forget that the other end (your hosted server at datacom) might have a very different path travelling over different links on the return to your TCL connection.  There might be a box along the way with a misconfigured MTU, or something that's trying to be "clever" and have some sort of SSL manipulation going on.

Certainly think this is worthy of logging a fault with TCL at first, then also getting Datacom involved to check the return path towards you.

All those TCP re-transmits - make sure there's not an MTU issue somewhere.

mercutio: have you tried bypassing your router?

skewt: If I have learnt anything from Geekzone its that a Master Filter will fix this problem