bug report: pldt fibr dropouts sa qc subdivision overload, fixed with sqm on mikrotik (don’t be noobs na reboot lang)
guys, last 2 weeks, my 300mbps pltd fibr sa fairview was dropping every 30mins-wan light blinks red, ping spikes to 500ms sa speedtest.net. wfh zoom calls? laggy af, online banking gcash transfers timing out mid-tx. classic symptoms ng pon tree saturation, di ba? yung shared splitter sa poste gets overwhelmed pag lahat ng kapers neighbors nag-netflix at same time.
una, sinunod ko yung usual tita advice: “i-reboot mo modem, tanggalin plug 10 secs.” ginawa ko 5x daily, check cables, even factory reset ont. walang kwenta. sa fb group PLDT Users PH, sabi nila “call 171, mag-demand ng tech visit.” queued 45mins, tech came after 3 days, sabi “ok naman oh,” checked signal -20dbm good daw, left. same shit next day.
friends from r/phtech: “bypass pldt router, gamit mo own mikrotik or glinet.” tried basic bridge mode, still bufferbloat hell-speedtest shows a=90 b=20 c=10, di scaling properly under load, like those arxiv papers on fq_codel vs fifo queues (check 1704.05695 on bufferbloat mitigation).
hot fix na naka-work finally (unexpected simple): flashed latest routeros 7.12 on rb4011, set up sqm-cake script with piece_of_cake.sh. ingress 280mbps (derate 10% pra headroom), egress 150mbps based on rtt benchmarks. latency dropped to 10ms even full load! di na drops, zoom smooth kahit torrenting sa bg. yung tech PON arch di ko control, pero local shaping follows scaling laws-bandwidth di linear sa contention ratio, kaya shape downstream din.
tip for kabayans: di enough yung “faster plan lang” mindset, that’s product noobs. measure bufferbloat first sa waveform.com/bufferbloat, then sqm it. if qc/converge same issue, same drill-ONT sa bridge, mikrotik handles qos. saved me 2k tech visits. works on globe fiber too. scaling laws don’t lie.