FearYesMan's profile

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Monday, June 14th, 2021 5:28 PM

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Replacing Arris SB8200 with Motorola MB8611

Hi,

I've been reading a lot of posts in this forum regarding the Motorola MB8611 and most of them seem to relate to issues getting the 1200MBit speeds promised by Xfinity. With this in mind, I'm a little hesitant to replace my existing Arris SB8200, which has been rock solid for three years, with the Motorola MB8611. With this in mind, has anyone been successful in running the MB8611 at the promised speed, or at least faster than the 1000MBit, especially in a config using an Asus Router 2.5GBit port? Also, does anyone happen to have the steps I need to take in order to replace an existing customer-owned modem? The instructions I've seen relate to replacing an Xfinity Gateway with a customer-owned modem... Any information would be greatly appreciated.

Thanks!

Problem Solver

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948 Messages

4 years ago

Ok, so have mb 8611 but I don’t use it for this reason, I have a asus rt-ax86u router, so that router being multi gig only lets you the 2.5 port on either the wan or lan side,not both at the same time, so ether way a bottle neck, so I figured out a way around that, for example, you need a modem with more then 1000 Mbps input and two 1000 Ethernet ports, so I just connect the two 1000 Mbps Ethernet cables to that router, then setup dual wan, then choose the 2.5 gig port for the lan port, I get 1400 Mbps + easily with that setup, of course your devices have to have network card capable of over 1000 Mobs, I can do that with the Xb7 not in bridge mode, I know about the double nat pitfall, I just used that as a example, also this way on the Xb7 I still have the red 2,5 port free, but if your creative even with double nat thing going on, I have two subsets, 10.0 and 192.168, I have two printers, one connected to each subnet, so I just connect to each subsets simultaneously from my main computer, so I can print or access anything on either subnet, with mb 8611 I believe you would have to run it’s single 2.5 Ethernet port into a 2.5 gig switch and then run the 2 cables like described earlier hope this helped

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