What is the fast speed someone has seen from an AC1600 C6250?

[5MissingOnOne]

I have an AC1600 C6250 router and Xfinity is my ISP.  I'm paying for 650 Mbps (its actually cheaper than 250 Mbps), but I'm only getting around 250 Mbps via Wifi (5Ghz) (comp/phone) and 350 - 400 Mbps when plugged directly in.    Xfinity said this router doesn't go that high, but according to the box its supposed to be abe to go up to 1300 Mbps.    ( I do have about a half dozen smart lights as well as security cameras hooked up as well.) 

[plemans]

---

@5MissingOnOne wrote:

I have an AC1600 C6250 router and Xfinity is my ISP.  I'm paying for 650 Mbps (its actually cheaper than 250 Mbps)---You're probably correct on its cheaper but the C6250 isn't certified by comcast to 650mbps, but I'm only getting around 250 Mbps via Wifi (5Ghz) (comp/phone) and 350 - 400 Mbps when plugged directly in.---sounds right    Xfinity said this router doesn't go that high, but according to the box its supposed to be abe to go up to 1300 Mbps.----That's wifi link speed. its not throughput speed or modem certified speeds. There's a difference. And a lot depends on the device connected. The 1300mbps link speed is also contingent upon a 3x3 antenna setup. If your device is only 1x1 or 2x2, it'll connect at a lower link. And again, link speed isn't throughput (actual) speed.      ( I do have about a half dozen smart lights as well as security cameras hooked up as well.) 

---

250mbps over the 5ghz is pretty solid if you're connected with a 2x2 antenna setup. I don't have a legit review of the c6250 but its similar in performance to the R6250 and smallnetbuilder reviewed that device. They were able to max out the 5ghz at just over 300mbps using a 3x3 antenna setup. so your pretty much bumping up against what its max 5ghz speed is if your on a 2x2 setup (most wireless chipsets). 

here's the full review of the r6250 from smallnetbuilder (reputable review/testing site). https://www.smallnetbuilder.com/wireless/wireless-reviews/32114-netgear-r6250-smart-wifi-router-revi...

From the sounds of it, you've pretty much maxed out what the C6250 is capable of in terms of  modem speeds, hardwired speed, and wireless. 

[FURRYe38]

You'll need to get into a C7000 or C7800 if you want to maintain a modem router combo or change to a model only option, like a CM1000 and connect up a external router if your going to have that kind of wired speed with your ISP. Thought wireless speeds will max out at around 400-500Mbps depending upon wireless device design and support. 

---

@5MissingOnOne wrote:

I have an AC1600 C6250 router and Xfinity is my ISP.  I'm paying for 650 Mbps (its actually cheaper than 250 Mbps), but I'm only getting around 250 Mbps via Wifi (5Ghz) (comp/phone) and 350 - 400 Mbps when plugged directly in.    Xfinity said this router doesn't go that high, but according to the box its supposed to be abe to go up to 1300 Mbps.    ( I do have about a half dozen smart lights as well as security cameras hooked up as well.) 

---

[plemans]

Since you're on xfinity, if you plan on upgrading, I'd highly encourage you to look at the docsis 3.1 devices for xfinity. 

I'm on xfinity and the docsis 3.1 tend to work better, be a bit more tolerant of noise, and are compatible with up to 1 gig speeds. 

Docsis 3.1 modems:

CM1000 (single gig port)

CM1100 (dual gig port for wan port aggregation)

CM1150V (voice)

CM1200 (4x ethernet ports for wan port aggregation or if you have a business line on xfinity. Wouldn't recommend because there isn't much benefit on xfinity)

Docsis 3.1 modem/routers:

C7800

CAX80