Files
bambuddy/backend
maziggy f6a85031e6 [Debug] Virtual Printer proxy: diagnostic port probing for A1 (#757)
A1/A1 Mini printers fail to connect through VP proxy mode while
    X1C/P2S/H2C work fine with identical transparent TCP proxy code.
    Root cause unknown — the proxy is model-agnostic, so the failure
    suggests BambuStudio uses a different connection flow for A1 models
    that hits ports we don't proxy.

    Add diagnostic probe listeners on ports 21, 80, and 443 on each
    proxy VP's dedicated bind IP. If the slicer connects to any of
    these un-proxied ports, a WARNING is logged so debug logs and
    tcpdump can reveal what's missing.
2026-03-20 10:52:42 +01:00
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