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My private network is (suddenly) very slow

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.

vps pfsense tcp offloading

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.


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