Fast-Forwarding breaks websites?

[edinburgh1874]

Hi All,
I've enabled fast-forwarding on a few platforms, and noticed that it breaks www.speedguide.net.

As soon as it's enabled, the speed counter gets stuck and won't move.

Disabling fixes it straight away.

Tried this on a few servers with Broadcom NICs - Dell R610,R620 and R720.

Anyone else see this behaviour? I'm worried that it might affect other sites, I'm aware that it breaks IPSEC but would like to know if it breaks anything else.

Cheers

[edinburgh1874]

Anyone out there seeming similar behaviour?

[asterix]

I have fast forwarding enabled since a last year. Never had an issue.

[edinburgh1874]

Thanks. I wonder why it's breaking this particular site though?!