X1250e Underperforming at ~390-400Mbps
Firstly, I appreciate our Firebox x1250e is old and out of support now but we have an issue that somebody can hopefully provide assistance with.
We have recently upgraded our WAN line to 1Gbps (100Mbps before). From the documentation, our X1250e should be able to pass ~1.5Gbps.
We are running a simple firewall in routed mode with no proxy/VPN or anything and have an issue where the x1250e is only able to achieve around ~390-400Mbps.
It seems to be behaving like an X550e even though it has a full license for X1250e.
We are running Fireware XTM v11.3.8.B451218 and managing with WSM v11.10.4.
Is this a configuration issue? Is there any way to resolve this?
Thank you for your help in advance.