Quote from: trdeal on February 05, 2026, 11:08:59 AMthe firewall itself is not honouring the MTU/MSS settings on the WAN interface and is thus failing in its IPv6 connectivity.
Have you tried deleting the MSS and MTU settings you manually entered? My settings have nothing in the values for MSS/MTU in the WAN config and my Connectivity Audit doesn't fail
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