Issue Resolved.
Turns out there was a bad cable in the mix. For whatever reason my T630 thin client was fine running at gigabit speeds but the new Proxmox/OPNSense was not. It was negotiating down to 100mbs/sec which makes sense now looking at the figures. Once the cable was replaced everything worked as expected. Explains why nothing i tried made a difference.
appreciate all the suggestions though. I've tweaked all my settings now to remove the unecessary settings as per the advice so i should be in good shape moving forward.
thanks
Turns out there was a bad cable in the mix. For whatever reason my T630 thin client was fine running at gigabit speeds but the new Proxmox/OPNSense was not. It was negotiating down to 100mbs/sec which makes sense now looking at the figures. Once the cable was replaced everything worked as expected. Explains why nothing i tried made a difference.
appreciate all the suggestions though. I've tweaked all my settings now to remove the unecessary settings as per the advice so i should be in good shape moving forward.
thanks
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