Motorola SB6121 vs SB6120
I am gonna be purchasing a modem to get rid of the 7 dollar rental fee, can anyone let me know which one to buy. I have the UBEE currently and both of these are at best buy for 99.00. Just wondering which one I should buy, thanks.
West Palm Beach, FL
They are almost the same,the SB6121 has a newer hardware version,but they both use the same firmware.If it was me I would go with the newer SB6121,which will eventually replace the SB6120.
Thanks Ripper, that is what I was thinking as well. I just dont see any reviews on it and I understand the 6120 had some firmware issues when it was first released as well, just wanted to be sure this was not the case with the 6121.
Mountain View, CA
|reply to petes67bird |
You might want to read this first:
|reply to petes67bird |
If it's the same price 6121 is fine, otherwise 6120 assuming its cheaper.
That's just it - the SB-6120 (brick and mortar) usually isn't.
Also, the -6121's indicator-light system is clearer (according to »mydeviceinfo.comcast.net, which *does* show this model on the Approved Device List). Ideally, lights #2 (receive), #3 (send), and #5 (modem to PC/router) should be blue - #2 and #3 indicate channel bonding is active, with #5 indicating a gigabit connection. The only error on the page is that the SB-6121 does not support IPv6 - according to Motorola itself (and field reports here in this forum), this model does indeed support IPv6 (as does the SB-6120, which it will likely eventually replace in retail).
Quirks - the original Netgear WNR-3500 (which Comcast used to offer via the free wireless router promotion), while otherwise a great match for either SB-612x cable modem, cannot support IPv6 via factory firmware (either original or upgraded) and has no third-party firmware support (due to the utterly alien Marvell TopDog router chipset). Fortunately, the Netgear WNR-3500 V2 and WNR-3500L (both based on the same Broadcom router chipset) do support IPv6 using factory firmware; further, both support third-party firmware options (specifically, DD-WRT, Tomato, and OpenWRT/X-WRT), while retaining the all-gigabit wired LAN/WAN ports of the original WNR-3500 (the L model also includes a USB port for Network-Attached Storage, but not network printing, usage). If you absolutely *must have* simultaneous dual-band N support, I'd recommend the WNDR4000 (also from Netgear) or the Linksys E4200; neither is inexpensive in the least, but both have all the bells and whistles any performance-minded LAN user would want.
I bought the 6121 and it is performing just as the DPC3000 was and better than the Ubee in regards to a lower ping time by about 3-4 ms. On the 6121 and the DPC3000 I avg 8-12ms of ping and on the Ubee I couldnt get under 14 and averaged 18-22ms, not sure why on the difference. I pair the modem with the Asus RT-N56U which is a highly touted wireless router.