s about modem speeds
s about modem speeds
Hello everyone, I'm relocating and experiencing Comcast issues. I've purchased my own modem, the SURFboard SBG6950AC2, which claims DOCSIS speeds up to 686 Mbps but Wi-Fi AC speeds reach 1900 Mbps. My questions are: am I limited to a maximum of 686 Mbps from Comcast even if I have a higher plan? Can I transfer files locally at up to 1900 Mbps? And will my Wi-Fi always outperform my wired connections?
Yes and yes, keeping that note in mind for local transfers, a WiFi AP won't reach 1900Mbps under real-world conditions.
It's accurate, your internet download rates will be limited to 686mbps, while your internal network connections—such as those to or from a local NAS—will be restricted to 1900mbit per second on Wi-Fi.
The speed claimed by the modem follows the Docsis standard. Most cable companies cannot exceed this limit. By the rule, an 8x4 modem should handle around 383 Mbps, but providers typically offer only up to 200 Mbps. The key details are the Downstream and Upstream channel numbers shown by the device. The link you referenced is a 16x4 gateway. Comcast advertises 372 Mbps, which comes directly from their official website.
Secure a plan for $400 or less. Most providers won’t force a modem beyond its capacity. For a 686Mbps device, target roughly two-thirds of that speed or less.