Replacing my Comcast modem/ router combo. Need advice.

mfh6375

Member
Jun 20, 2005
181
1
81
Hello. I currently have an Arris TG862G-CT. It is just the standard one that I rent from Comcast. It sucks. It works fine with my desktop, which is connected with an ethernet cable. But, my PS4 constantly drops the wifi conection. The PS4 is only about 20 feet away with two walls in between. My Xbox One drops sometimes, but not as consistently as the PS4. The PS4 stays connected perfectly if I put it in the same room about two feet from the router.

I have heard this is a common problem with these modem/ routers. So, I have decided to replace and see if that fixes my connection issue. Below are two possible replacements I have come up with. Please advise on which would be better. I'm not super knowledgeable about networking, so if you have an idea that you think would be better than these let me know also. Thanks.

1) Netgear Nighthawk AC1900 Dual-Band Router with DOCSIS 3.0 Cable Modem

or

2) Arris Surfboard DOCSIS 3.0 Cable Modem with Netgear AC1750 Dual Band Wi-Fi Router
 

mnewsham

Lifer
Oct 2, 2010
14,539
428
136
So, do you think the Netgear I listed would give improved performance over my current Comcast router? Will it send a stronger wifi signal?
Maybe a bit, residential wifi is restricted in it's power output to 1w. So even the highest end router will simply provide more simultaneous streams for more bandwidth, not necessarily larger range. For extending the range of your network you may wish to look at wired access points if you can run ethernet, if you're stuck relying on wifi then a mesh router system might be your best bet depending on the size of the property.
 

razel

Platinum Member
May 14, 2002
2,337
90
101
Check to see if you are paying a monthly fee to use their WiFi combo. Most do. If so check which ones your cable modems ISP supports. Buy a cable modem only, then buy your own WiFi router. If you are lucky sometimes they'll let you use that same combo but they turn the WiFi off.

In the meantime you can try to improve what you have. Treat WiFi light a light that can go through walls (albeit weaker). Most of the time elevating it helps most people.
 

mfh6375

Member
Jun 20, 2005
181
1
81
Check to see if you are paying a monthly fee to use their WiFi combo. Most do. If so check which ones your cable modems ISP supports. Buy a cable modem only, then buy your own WiFi router. If you are lucky sometimes they'll let you use that same combo but they turn the WiFi off.

In the meantime you can try to improve what you have. Treat WiFi light a light that can go through walls (albeit weaker). Most of the time elevating it helps most people.
Yes they charge $10 per month for my current combo.

So, are you saying it would be better to have a separate modem and router, as opposed to just getting a better combo?
 

razel

Platinum Member
May 14, 2002
2,337
90
101
Absolutely! That's $120 per year. Have an old WiFi router handy? Then I would start by calling them up and removing the $10 a month WiFi. If you get lucky you'll get to keep that same modem/WiFi combo and they turn off the WiFi functionality. You get to keep the cable modem. Then just attach your WiFi router. If they end up wanting it back and not providing you one, tell them you need to buy a cable modem and call back. Chances are... they'll send you to retentions and you'll get to keep that modem.
 

mfh6375

Member
Jun 20, 2005
181
1
81
Absolutely! That's $120 per year. Have an old WiFi router handy? Then I would start by calling them up and removing the $10 a month WiFi. If you get lucky you'll get to keep that same modem/WiFi combo and they turn off the WiFi functionality. You get to keep the cable modem. Then just attach your WiFi router. If they end up wanting it back and not providing you one, tell them you need to buy a cable modem and call back. Chances are... they'll send you to retentions and you'll get to keep that modem.
Ok, but if I want to just get rid of their equipment altogether, would there be an advantage to buying a stand alone modem and a stand alone router, or would I be just fine with the Netgear combo I listed above?
 

mnewsham

Lifer
Oct 2, 2010
14,539
428
136
Ok, but if I want to just get rid of their equipment altogether, would there be an advantage to buying a stand alone modem and a stand alone router, or would I be just fine with the Netgear combo I listed above?
Standalone units tend to be more stable since they're only responsible for 1 part of the equation.

It also allows greater control if you wanted to upgrade just your wifi for example, you can generally buy access points for far less than a full router/modem wifi combo unit.
 

mfh6375

Member
Jun 20, 2005
181
1
81
Standalone units tend to be more stable since they're only responsible for 1 part of the equation.

It also allows greater control if you wanted to upgrade just your wifi for example, you can generally buy access points for far less than a full router/modem wifi combo unit.
Ok, so I have decided to go with standalone units. What do you think of these?

Netgear DOCSIS 3.0 cable modem model CM500-100NAS

with

Netgear AC1750 Dual-Band Wi-Fi router model R6400-100NAS

Would there be any reason to get the AC1900 router instead, or would that just be overkill? FYI this router will be connected to 2 iPhones, 1 iPad, PS4, PS3, Xbox One, Nintendo Switch, Android TV. It will also be connected to my desktop through ethernet.
 

mnewsham

Lifer
Oct 2, 2010
14,539
428
136
It really depends what sort of speeds you expect. The next step up would be the Netgear R7000 AC1900. In testing it can achieve ~350mbps throughput over wifi in the same room.

For longer range you are still going to need more access points, or better central placement of your router.
 

mfh6375

Member
Jun 20, 2005
181
1
81
Well, I ran speed test on my desktop(wired) and got 159mbps. I ran a network test on my PS4, which is within 2 feet of router, and I only got 35mbps.

So, based on that, do you think the AC1750 would meet my needs? I think the difference between AC1750 and AC1900 is speed, not range. Correct?
 

mnewsham

Lifer
Oct 2, 2010
14,539
428
136
Well, I ran speed test on my desktop(wired) and got 159mbps. I ran a network test on my PS4, which is within 2 feet of router, and I only got 35mbps.

So, based on that, do you think the AC1750 would meet my needs? I think the difference between AC1750 and AC1900 is speed, not range. Correct?
The PS4 has pretty crap wifi speeds in general from my understanding, it's not the best client device to be using to test wifi speeds.
 

ch33zw1z

Lifer
Nov 4, 2004
37,995
18,344
146
I have comcast.

100/10

Modem: sb6183
Router: ubiquiti er-x
Wap: uap-ac-lr

No issues with WiFi, I'm rural...
 

namx01

Member
Nov 27, 2012
33
3
71
The CM600 would give you access to higher download speeds if you would be interested. I know Comcast is upping their speed tiers in a lot of regions. The CM700 has the dreaded Intel Puma chipset and should be avoided.
 

ch33zw1z

Lifer
Nov 4, 2004
37,995
18,344
146
@ch33zw1z Some complain (on Amazon) that this runs really hot and has extremely bright LEDs; your thoughts please?

edit: So you probably mean the SB6183

I don't notice if it's too hot, as long as it works I'm fine.

The lights aren't a problem for me, plus it has this little option to disable all lights except power.

 

Charlie22911

Senior member
Mar 19, 2005
614
228
116
Comcast 250mb subscriber here, I have been using a Motorolla Surfboard 6xxx DOCSIS 3.0 modem (at work, dont remember model) and can confirm it runs pretty warm. It's been running two years without an issue though.

For router I am using one of these fanless i3 u series boxes with pfSense:
https://www.amazon.com/QOTOM-Q330G4-Barebone-Computer-Fanless-firewall/dp/B06ZYG5ZQX/

Performs fine with snort and pfblockerng loaded with rules, did a "stress test" with a bunch of linux torrents and it didn't miss a beat.
 
Reactions: ch33zw1z

sdifox

No Lifer
Sep 30, 2005
96,183
15,777
126
Comcast 250mb subscriber here, I have been using a Motorolla Surfboard 6xxx DOCSIS 3.0 modem (at work, dont remember model) and can confirm it runs pretty warm. It's been running two years without an issue though.

For modem I am using one of these fanless i3 u series boxes with pfSense:
https://www.amazon.com/QOTOM-Q330G4-Barebone-Computer-Fanless-firewall/dp/B06ZYG5ZQX/

Performs fine with snort and pfblockerng loaded with rules, did a "stress test" with a bunch of linux torrents and it didn't miss a beat.


That pfsense box would be a router, not modem.
 
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