Hi,
My issue, like apparently many other have had, is that the upload speed on my UTM is far below expected.
I'm running a Sophos UTM with a home use license on a Core i5 laptop with one internal and one PCI Express GB ethernet adapter.
When I connect a pc directly to the (bridged) cable modem, I get the full 150/15Mbit speeds up/down.
When connected through the Sophos UTM download speeds are perfectly fine but the upload speeds are about half of what is expected (7.5Mbit).
Obviously I've disabled everything that I could think might be interfering. So, no IPS, no Web Filtering, no threat protection, no nothing, just a bare firewall setup with 1 fw rule:
internal -> any -> any
and some masquerading.
I've completely reinstalled the firewall from scratch, and again but with the internal and external interfaces swapped. I've tried with a different (old) device I had lying around, I've tried setting the external interface to 1000Mbit/full and to 100Mbit/full, but none of these things have helped.
I'm at the end of things I can think of.
I've not played with the MTU settings, since I have no idea how to do that right and I've read about others that had 'arp issues' with their provider, this is also beyond the scope of my knowledge..
Please advise.
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