The best Comcast modem and Xfinity routers compatible with Blast and Performance cable internet. As well as the newer Comcast Gigabit, future-proofed DOCSIS 3.1 modems.
We will also cover the best Xfinity modem router combo. We’ll cut to the chase, 95% of you are going to walk away with this combo modem router seen here. It’s cheap and powerful making it the best replacement combo modem router.
Best Modem Router Combo
Instead of a modem and router, you can buy this single modem router combo device. This will be the best and easiest option for 95% of 1-2 story home users.
|C6250 AC1600||300 Mbps||16×4||Performance||Price Check|
|C7000 AC1900||500 Mbps||24×8||Blast||Price Check|
|C7800 AC3200||1 Gbps||32×8||Gigabit||Price Check|
|C7100V AC1900||500 Mbps||24×8||Voice Package||Price Check|
Best Modems for Comcast
With these stand-alone cable modems, you have several options depending on what speed package you subscribe to. You will still need to obtain a router from the next list.
|CM500||300 Mbps||16×4||Performance||Price Check|
|CM600||400 Mbps||24×8||Blast||Price Check|
|MB8600||1 Gbps||32×8||Gigabit||Price Check|
|CM500v||200 Mbps||16×4||Voice Package||Price Check|
Best Xfinity Routers
No matter what stand-alone modem you buy, you can use any of these routers. They are compatible with all speed tiers of Comcast. You must buy based on your house size.
|Router||Power||WiFi Range||House Size||Price|
|RT-ACRH13||AC1300||2,000 sq ft||1-2 stories||Price Check|
|RT-AC86U||AC2900||3,000 sq ft||2-3 stories||Price Check|
|RT-AC5300||AC5300||5,000 sq ft||3-4 stories||Price Check|
|Orbi Mesh||AC2200||6,000+ sq ft||4+ stories||Price Check|
What combination router should I get?
If you’re here looking for the actual best possible modem for Comcast, the number one choice is a MB8600 DOCSIS 3.1 modem which is the only modem approved for Comcast Gigabit speeds. This high-performance, new technology modem paired with a powerful router or mesh kit cannot be beaten by any combo modem router on the market. It truly is the top performer when it comes to fastest internet speeds.
If you don’t plan on getting Gigabit, then the current best DOCSIS 3.0 modem choice would be the CM600. It can handle Comcast Blast and Performance internet up to 400 Mbps.
If you are going for the cheapest modem, the Netgear CM500 will work up to 200 Mbps. The truth is the CM500 will be the best choice for almost everyone. Most people never get anything over 200 Mbps.
Either modem paired with a WiFi router that matches your home size will be the best combination set up for Comcast subscribers.
Isn’t a combo modem router the best option?
We recommend two devices over the combo modem with wireless built-in. These are the reasons why.
- Two devices are better. The stand-alone cable modem and any of the mentioned routers will have better performance than the combo modem router. The higher cost comes from better equipment.
- 2 separate units makes it easier to replace if something goes bad. This should not be an issue, but life happens. With a combo unit, the whole thing must be replaced.
- Nerd options. The ASUS GUI gives you a lot more control. It is simple and intuitive for even the non skilled. A great way to start learning networking from home.
- The real reason, they are better routers. External antennas will get higher speeds at a distance. The combos won’t go beyond 2 stories.
Netgear vs Arris SB6190
You may have heard that the ARRIS SB6190 is a better modem. It is not. Stay away from the SB6190 or any modem on this bad modem list. We’re not even going to compare the two devices because when it comes down to Puma 6 vs Broadcom, there is no comparison.
Do not buy a used modem!
Do not buy a used modem. Used modems have already been added to another Comcast users account and many times in another state. The account is usually closed, and the equipment MAC address is still on there. You will not have permission to remove the device so that you can add it to your account. The agent will require you to visit a Comcast Cable Store and bring the physical modem for them to verify and add to your account. You’ve been warned, do not buy used.
End Of Life Modems – ARRIS SB6141? Netgear CM400?
Older 8×4 modems with only eight down channels such as the SB6141 or CM400, are starting to be removed from the internal supported devices list. According to several of our readers’ statements, those modems are no longer on the approved list for Xfinity cable internet when they called and tried to have them activated. As for the (16×4) DOCSIS 3.0 modems, even if they do get added to an end of life list in 8 years, they would continue to work if the mac address is already on your internet account.
Benefits to buying your own replacement modem
- Save $10 a month forever, no more rental fee
- Sace $120 a year, forever.
- Disable Comcast’s “public hotspot” coming out of your Xfinity provided router
- More control over your network
- Get better download speeds
- Newer technology
Save $10 a month on Comcast internet bill.
If you stop renting your modem from Comcast, you will save $10 a month. They are charging you to rent their old modem. This means in just one year, you will have saved $120. It adds up. I have used Comcast for over 18 years, meaning I have saved $2,160 dollars on my cable internet bill. Sure it may seem like a lot to pay for replacement equipment now, but I promise you it will pay for itself in the long run.
Improve your Comcast internet download speeds.
In most cases, people experience improved speeds when they buy a replacement retail modem and router. Reason being, these are the latest DOCSIS 3.0 modems, they have higher bonded channels than most Comcast provided modems, and the routers have higher rated wireless signals. They are newer technology and run cooler than the rental modems that often overheat and reboot or cause random disconnects from other malfunctions. So overall, you can expect more reliability and an improvement in your Xfinity cable internet service.
How do I install my cable modem?
You don’t have to do anything. This cable modem is a plug and play device, meaning all you do is plug it in and it works. All you have to do is call Comcast, give them the MAC Address so they can add it to your Xfinity internet account. They know this call very well and will not be giving you trouble. They will do it, and you’re finished. The mac address is on the bottom of the modem on a sticker, and it is clearly labeled.
Check Out These Fastest Modem Speeds.
You can verify your cable internet modem speeds via the online speed test. Here are the download speed results from my self-bought replacement modem. Even though I am only supposed to get 100Mbps, I always get around 120Mbps with this cable modem. When I was forced to rent from Comcast, I would often be stuck around 30Mbps even though I was paying for better speeds. Your results will vary based on your cable ISP, speed package, and location.
Notice how it says faster than 90% of the US?
This is because most people rent a modem and router.
Good luck, please feel free to ask questions below!
- Gigiabit Modem – Motorola MB8600
DOCSIS 3.1 Gigabit, Comcast Blast and Performance.
- Best Current Modem – NETGEAR CM600
32 download channels. Xfinity Blast and Performance.
- Budget Modem – Netgear CM500
16 download channels. Blast and Xfinity Performance.
- Voice Modem – Netgear CM500v
A phone modem is required with any voice package.
- Best Modem Router – C7000 AC1900
24 download channels. Extreme, Blast and Comcast Performance.
- Cheaper Combo Modem – C6250 AC1600:
16 download channels. Comcast Blast and Performance.