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    WireGuard very slow performance

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    • I
      iTestAndroid
      last edited by

      I have GB internet. When I try speed test in LAN that's connected to pfSense, I get appropriate speeds. But when I try it with WireGuard, download speeds are 500kb/s.

      I tried setting MTU in client to 1420, 1412. I tried setting MSS Clamp to 1380 or setting Wireguard interface MTU to 1420, 1412 etc. None helped. Something is capped.

      I don't know if its worth mentioning but my WAN MTU is 9000.

      Can someone please advise on what I might be missing?

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      • B
        brswattt @iTestAndroid
        last edited by

        @itestandroid Did you ever figure this out?

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