Recognition Display Path MTU Discovery Test: Prevent Media Loading Failures on School Networks
Intent: decide — A school recognition display that loads athlete portraits halfway, stalls on video tributes, or shows blank panels where alumni photos should appear is exhibiting one of the most misdiagnosed failure modes in school digital display networks: a Path MTU Discovery (PMTUD) breakdown. The packets carrying large image and video frames arrive at the network boundary, get silently discarded because they cannot be fragmented, and the display never receives the signal it needs to complete the load. No error message appears. No link indicator goes dark. The content simply never finishes rendering.
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