Coworking Wi-Fi drops every afternoon around 3pm
Summary
Connection becomes unusable in the main coworking from ~3pm to 5pm. Calls drop, deploys fail, members leave to cafes.
Why it happens
AP-3 in the south wall is on the same channel as the building neighbour. When their afternoon shift starts both routers fight for 5GHz band 36.
Solution proposals (1)
Re-channel AP-3 to band 149 + add second AP in south corner
Two-step fix: (1) move AP-3 off the saturated 36 band onto 149, which the neighbour is not on. (2) Mount a second Unifi U6-Pro on the south column to handle the afternoon load. Estimated parts: $189.
Documentation. What shipped.
Fixer: fc5b4c87-8d87-4967-a285-6022b7750989
Logged channel utilisation across a week. Band 36 hit 92% saturation between 14:50 and 17:10 every weekday. Switched AP-3 to band 149, added a Unifi U6-Pro mounted on the south column. Latency p95 went from 480ms to 38ms during the problem window. Total parts: $189. $51 returned to bounty pool for next infra fix.
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