Upgraded” from the Broadcom XB6 to the XB7 w/Puma 7 chip and it's slower than the old XB6 even w/WiFi 6. The wall penetration is horrible w/XB7. Curious of other peoples' experiences :
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Netgear and Arris Face Class Actions for Defective Cable Modems — Schubert Jonckheer & Kolbe