If you use a private network, in most cases you will also use a VPS with pfSense as a firewall / router. Within pfSense, there are several options which, when enabled, can ensure that the traffic is not routed properly, or a very low upload takes place.
If you end up in such a situation, this can be remedied by disabling certain options in the network configuration of pfSense itself. This specifically concerns Disable hardware checksum offload & Disable hardware TCP segmentation offload.
In some cases, due to an update or restart, these options may be undesirably unchecked. In that case, you can enable these options under System > Advanced > Networking tab. Once enabled, problems with routing and speed should be corrected immediately.
Should you have any questions left regarding this article, do not hesitate to contact our support department. You can reach us via the ‘Contact Us’ button at the bottom of this page.