Advisory: Sophos Endpoint - "Your connection isn't private." Policy settings can be returned to normal. See: KB-000045954 for the latest updates.

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At my wit's end with WAN bottleneck on FW Home

My friend decided to run FW Home on my recommendation, but he's having trouble and I took the machine home to troubleshoot.  Five days later, I still haven't found the issue.

SFVH (SFOS 19.5.2 MR-2-Build624)

Lenovo ThinkCentre SFF PC
Intel Core i3-8145UE
8GB (6GB usable on Home edition) DDR4 2666

Everything works...  except the WAN download speed is garbage.  On a 400/50 connection, I get ~30mbps download, ~40mbps upload on speedtest.net and ~100mbps download, ~48mbps upload on the Google speed test.  That is across all VLANs and on LAN port direct.  I can also confirm that running speedtest-cli on the device shell gives the same exact results.  Interface speed is confirmed to be gigabit, and multiple cables have been tested.

There is a test top rule that has no features, that I confirmed is used for all access.  IPS off, AV off, Web off, no Advanced protection, no QoS (but limit was tested adjusted to 56250 regardless), no VPN.

CPU usage barely ever passes 18%, memory is stable at 33-35%, including when running `top` in the shell.  Gateway set to DHCP.  DNS set to 127.0.0.1, 1.1.1.1, 8.8.8.8.

WAN zone bandwith reports the reality, slow connection.

I have used a live Linux distribution on the machine and can connect to the WAN at full speed, ruling out port/chipset issues.

With those specs, I should be able to run everything with all services on without a hiccup on a 400/50 connection, yet I can't crack what the issue is.

I use pfSense at home and have no issues if I connect through it at full speed, but the Sophos box immediately slows everything down.



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