If there's no ANti-DoS Flooding activity, then, in the above, you've eliminated everything but the NIC. You can try setting a lower MTU. If that doesn't work, on the 'Hardware' tab, set to the various combinations of speed and duplex settings. Many people need to reboot to get a new setting to "take."
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
If there's no ANti-DoS Flooding activity, then, in the above, you've eliminated everything but the NIC. You can try setting a lower MTU. If that doesn't work, on the 'Hardware' tab, set to the various combinations of speed and duplex settings. Many people need to reboot to get a new setting to "take."
Cheers - Bob
Sophos UTM Community Moderator Sophos Certified Architect - UTM Sophos Certified Engineer - XG Gold Solution Partner since 2005
