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Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

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Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

Howdy all,

Long time lurker, first time poster.  I generally take the fastest connection I can and was able to upgrade to a Gigabit plan in the Minneapolis/Minnesota area around the beginning of the year.  My rented XBA-6 from Comcast is working great and has for 6 months+.

Looking at DOCSIS 3.1 Gbps capable modems, but I'm seeing the exact same reviews.  Out of the three I'm entertaining (SB8200, MB8600, and CM1000) I'm seeing a lot of reviews showing:

- It overheats regularly
- They die after 3 months
- Needs to be restarted weekly/daily

I don't want to deal with any of those three issues.  I'd buy this XBA-6 if that was an option.  What do you recommend?

Expert

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

Either the Motorola or the Netgear. Arris has not made a good modem since the 6183.


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Silver Problem Solver

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)


@Jdirtyburt wrote:

Howdy all,

Long time lurker, first time poster.  I generally take the fastest connection I can and was able to upgrade to a Gigabit plan in the Minneapolis/Minnesota area around the beginning of the year.  My rented XBA-6 from Comcast is working great and has for 6 months+.

Looking at DOCSIS 3.1 Gbps capable modems, but I'm seeing the exact same reviews.  Out of the three I'm entertaining (SB8200, MB8600, and CM1000) I'm seeing a lot of reviews showing:

- It overheats regularly
- They die after 3 months
- Needs to be restarted weekly/daily

I don't want to deal with any of those three issues.  I'd buy this XBA-6 if that was an option.  What do you recommend?


In spite of what nerdburg says, I have had the Arris XB6 gateway for several months and upgraded to gigabit with a 10 minute call to Comcast customer service.

 

Very happy camper.

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Frequent Visitor

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

Hah,
I'm already slanted towards not purchasing a standard Arris modem, such as the SB8200, simply due to my horrible experience with an SB6190 (I assume no details are needed there lol).  I am extremely happy with the performance on the XBA-6 tho, and can't figure out how to purchase one.

Expert

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)


@Jdirtyburt wrote:

 I am extremely happy with the performance on the XBA-6 tho, and can't figure out how to purchase one.


They are not available at retail. Even if you managed to get your hands on one, Comcast would not activate it for service.



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Highlighted
Expert

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)


@Jdirtyburt wrote:

Hah,
I'm already slanted towards not purchasing a standard Arris modem, such as the SB8200, simply due to my horrible experience with an SB6190 (I assume no details are needed there lol).  I am extremely happy with the performance on the XBA-6 tho, and can't figure out how to purchase one.


I don't know why there's so much animosity against the SB8200, as I own one and it's been pretty solid. I had it running for 62 days straight before I had to restart it, and only because of a change in my network.

If you're concerned about overheating, you can always get cheap USB fans like this one, which are in fact currently cooling down both my ASUS RT-AC88U router as well as my SB8200. 

 

Sure the SB6190 was awful, but so are a lot of modems that also had the terrible Intel Puma 6 chipset, even ones on the Comcast approved list - the ASUS CM-16 & CM-32, the Linksys CM3016, Netgear CM700 and the new CBR40. Even the leased Comcast XB3 gateways TG1682G and DPC3941T are affected

 

 


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Frequent Visitor

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

Yeah,
I didn't actually believe I could purchase an XB6, but as another person had posted about it I figured I'd at least ask.

So, 1 vote for all three so far.

Expert

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)


@RobertWy wrote:


In spite of what nerdburg says, I have had the Arris XB6 gateway for several months and upgraded to gigabit with a 10 minute call to Comcast customer service.

 

The Arris XB6 was so bad, Comcast doesn't even issue it anymore. All the XB6s in stock are Technicolor devices.

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Frequent Visitor

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

I'm also looking for a Gigabit modem and keep coming across
Motorola MB8600 and Netgear CM1000. In the past I have owned Motorola modems which were solid but switched to Arris afterwards. Never owned Netgear modem.
Which one do you guys recommend and why?
Frequent Visitor

Re: Help Me Choose a Gigabit Ready Modem (SB8200, MB8600, CM1000, etc)

So I ended up getting the MB8600 as I was not happy with my last Arris Surfboard, but those issues were related to the Puma 6 problem and likely nothing to do with standard Arris issues.  I will say that I'd been extremely happy with how well the Arris TG3482G's appeared to run.  I'd noticed several posters mention Comcast discontinued their use; however, in the Minneapolis MN area, they are still a standard as I was given one (HW Rev 11) when I first became a pilot tester in our area and it was replaced by another one (HW Rev 9) when I exchanged it last month for testing purposes.

 

After completing my testing for first day use on the MB8600, I am more than happy with my service and the modem.  Here, I feel, I should let the numbers do the talking:

 

 

Connection
   Startup Sequence    
   Startup Step Status Comment
   Acquire Downstream Channel 465000000 Hz Locked
   Upstream Connection OK Operational
   Boot State OK Operational
   Configuration File OK d11_m_mb8600_gigabit_c01.cm
   Security Enabled BPI+


   Connection Status    
   System Up Time 0 days 19h:01m:08s.00  
   Network Access Allowed  


   Downstream Bonded Channels  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (d Corrected Uncorrected
1 Locked QAM256 1 465.0 2.4 41.8 0 0
2 Locked QAM256 2 471.0 2.4 41.9 0 0
3 Locked QAM256 3 477.0 2.3 41.9 0 0
4 Locked QAM256 4 483.0 2.2 41.8 0 0
5 Locked QAM256 5 489.0 2.3 41.8 0 0
6 Locked QAM256 6 495.0 2.3 41.8 0 0
7 Locked QAM256 7 507.0 2.0 41.7 0 0
8 Locked QAM256 8 513.0 2.0 41.7 0 0
9 Locked QAM256 9 519.0 1.9 41.7 0 0
10 Locked QAM256 10 525.0 1.9 41.6 0 0
11 Locked QAM256 11 531.0 1.9 41.6 0 0
12 Locked QAM256 12 537.0 2.0 41.7 0 0
13 Locked QAM256 13 543.0 1.8 41.6 0 0
14 Locked QAM256 14 549.0 1.7 41.5 0 0
15 Locked QAM256 15 555.0 1.6 41.5 0 0
16 Locked QAM256 16 561.0 1.8 41.2 0 0
17 Locked QAM256 17 567.0 1.6 41.1 0 0
18 Locked QAM256 18 573.0 1.3 41.1 0 0
19 Locked QAM256 19 579.0 1.3 41.2 0 0
20 Locked QAM256 20 585.0 1.9 41.4 0 0
21 Locked QAM256 21 591.0 2.0 41.3 0 0
22 Locked QAM256 22 597.0 2.1 41.2 0 0
23 Locked QAM256 23 603.0 2.2 41.2 0 0
24 Locked QAM256 24 609.0 1.9 41.0 0 0
25 Locked QAM256 25 615.0 1.7 41.0 0 0
26 Locked QAM256 26 621.0 1.6 40.9 0 0
27 Locked QAM256 27 627.0 1.7 40.9 0 0
28 Locked QAM256 28 633.0 1.5 40.7 0 0
29 Locked QAM256 29 639.0 1.2 40.7 0 0
30 Locked QAM256 30 645.0 1.1 40.6 0 0
31 Locked QAM256 31 651.0 1.4 40.4 0 0
32 Locked OFDM PLC 159 690.0 1.4 38.8 0 0


   Upstream Bonded Channels  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked SC-QAM 6 5120 31.4 31.0
2 Locked SC-QAM 5 5120 37.8 31.5
3 Locked SC-QAM 7 5120 25.0 30.5
4 Locked SC-QAM 8 5120 18.6 30.5


I did a bunch of speed tests with my newly exchanged XB6 connected directly to my computer with all wifi turned off to get a baseline average for the speed I was receiving at the time so I'd be able to compare it with the MB8600 afterwards.  I was happy to see the speeds remained the same or increased, which was likely due to traffic at the time.

 

I use a Nighthawk X6 R8000 router, which I left out of the loop at first; however, I did reconnect it and ran two scripts I'd written to verify the consistency of my speed tests throughout the night.  Again, I am very happy with the results:

*Note: All results below have been run from a hardwired computer connected to a router broadcasting internet to every device in the house (wifi and wired), including multiple Smart TV's and gaming consoles.

Speedtest.net     TestMy.Net
Date DN LAT Server     Date Time Type Mbps MB/s
12/1/2018 8:10 AM 918.17 17 Chicago IL   12/01/2018 6:44:14 DN 97.99 12.25
12/1/2018 7:53 AM 424.84 17 Chicago IL   12/01/2018 6:14:05 DN 71.07 8.88
12/1/2018 7:48 AM 304.68 17 Chicago IL   12/01/2018 5:44:09 DN 102.47 12.81
12/1/2018 7:43 AM 355.99 17 Chicago IL   12/01/2018 5:14:09 DN 100.87 12.61
12/1/2018 7:37 AM 392.24 18 Chicago IL   12/01/2018 4:44:02 DN 83.1 10.39
12/1/2018 7:32 AM 422.51 17 Chicago IL   12/01/2018 4:13:52 DN 95.92 11.99
12/1/2018 7:27 AM 337.07 18 Chicago IL   12/01/2018 3:43:50 DN 108.16 13.52
12/1/2018 7:22 AM 376.67 19 Chicago IL   12/01/2018 3:13:49 DN 104.75 13.09
12/1/2018 7:17 AM 767.65 19 Chicago IL   12/01/2018 2:43:51 DN 117.71 14.71
12/1/2018 7:12 AM 867.83 17 Chicago IL   12/01/2018 2:13:49 DN 116.52 14.57
12/1/2018 7:07 AM 877.79 17 Chicago IL   12/01/2018 1:43:42 DN 31.85 3.98
12/1/2018 7:02 AM 763.72 17 Chicago IL   12/01/2018 1:13:47 DN 68.11 8.51
12/1/2018 6:57 AM 848.8 17 Chicago IL   12/01/2018 0:43:47 DN 65.09 8.14
12/1/2018 6:52 AM 346.45 17 Chicago IL   12/01/2018 0:13:44 DN 78.38 9.8
12/1/2018 6:47 AM 820.13 18 Chicago IL   11/30/2018 23:43:39 DN 42.63 5.33
12/1/2018 6:42 AM 389.24 18 Chicago IL   11/30/2018 23:13:45 DN 86.53 10.82
12/1/2018 6:37 AM 886.88 17 Chicago IL   11/30/2018 22:43:33 DN 39.19 4.9
12/1/2018 6:32 AM 377.22 17 Chicago IL   11/30/2018 22:13:39 DN 102.54 12.82
12/1/2018 6:27 AM 903.83 18 Chicago IL   11/30/2018 21:43:22 DN 92.19 11.52
12/1/2018 6:22 AM 420.22 17 Chicago IL   11/30/2018 21:13:05 DN 88.58 11.07
12/1/2018 6:17 AM 304.82 13 Chicago IL   11/30/2018 20:47:51 DN 74.49 9.31
12/1/2018 6:12 AM 343.1 17 Chicago IL   11/30/2018 17:23:47 DN 39.56 4.94
12/1/2018 6:07 AM 852.98 18 Chicago IL   11/30/2018 17:10:38 DN 128.13 16.02
12/1/2018 6:02 AM 387.86 15 Chicago IL   11/30/2018 17:08:33 DN 85.88 10.74
12/1/2018 5:56 AM 863.06 18 Chicago IL            
12/1/2018 5:51 AM 406.1 19 Chicago IL            
12/1/2018 5:46 AM 899.81 18 Chicago IL            
12/1/2018 5:41 AM 826.07 17 Chicago IL            
12/1/2018 5:36 AM 373.9 17 Chicago IL            
12/1/2018 5:31 AM 896.86 17 Chicago IL            
12/1/2018 5:26 AM 908.53 17 Chicago IL            
12/1/2018 5:21 AM 375.72 18 Chicago IL            
12/1/2018 5:16 AM 372.31 17 Chicago IL            
12/1/2018 5:11 AM 401.72 18 Chicago IL            
12/1/2018 5:06 AM 906.17 16 Chicago IL            
12/1/2018 5:01 AM 904.53 13 Chicago IL            
12/1/2018 4:56 AM 383.65 16 Chicago IL            
12/1/2018 4:51 AM 389.5 18 Chicago IL            
12/1/2018 4:46 AM 421.64 17 Chicago IL            
12/1/2018 4:41 AM 910.13 18 Chicago IL            
12/1/2018 4:36 AM 448.03 17 Chicago IL            
12/1/2018 4:31 AM 894.25 18 Chicago IL            
12/1/2018 4:26 AM 349.69 17 Chicago IL            
12/1/2018 4:21 AM 458.45 17 Chicago IL            
12/1/2018 4:15 AM 908.77 17 Chicago IL            
12/1/2018 4:10 AM 340.13 17 Chicago IL            
12/1/2018 4:05 AM 916.57 18 Chicago IL            
12/1/2018 4:00 AM 917.68 18 Chicago IL            
12/1/2018 3:55 AM 416.33 18 Chicago IL            
12/1/2018 3:50 AM 414.92 17 Chicago IL            
12/1/2018 3:45 AM 884.99 18 Chicago IL            
12/1/2018 3:40 AM 413.94 17 Chicago IL            
12/1/2018 3:35 AM 429.47 17 Chicago IL            
12/1/2018 3:30 AM 487.92 18 Chicago IL            
12/1/2018 3:15 AM 469.43 18 Chicago IL            
12/1/2018 3:13 AM 744.55 18 Chicago IL            
12/1/2018 2:46 AM 873.3 17 Chicago IL            
12/1/2018 12:52 AM 740.81 18 Chicago IL            
12/1/2018 12:47 AM 883.73 17 Chicago IL            
12/1/2018 12:42 AM 430.44 18 Chicago IL            
12/1/2018 12:37 AM 869.8 15 Chicago IL            
12/1/2018 12:32 AM 464.41 18 Chicago IL            
12/1/2018 12:27 AM 911.47 18 Chicago IL            
12/1/2018 12:06 AM 847.14 17 Chicago IL            
11/30/2018 11:52 PM 881.73 17 Chicago IL            
11/30/2018 11:37 PM 822.93 17 Chicago IL            
11/30/2018 7:34 PM 246.7 16 Chicago IL            
11/30/2018 7:33 PM 803.43 17 Chicago IL            

 

To say I was surprised to see 900's with everything connected would be an understatement.  Now to trouble shooting my failing wifi speeds from the Nighthawk X6.