I'm having issues with my upload speeds when playing games and voice chat.
I pay for the 600Mbps speed and I'm the only one in the household.
Any help solving this issue is deeply appreciated.
Netgear CM500 modem
Modem is connected to the line from the outside box.
Modem is only 3 months old.
Below is the connection log from the modem.
| Startup Procedure |
| Procedure |
Status |
Comment |
| Acquire Downstream Channel |
441000000 Hz |
Locked |
| Connectivity State |
OK |
Operational |
| Boot State |
OK |
Operational |
| Security |
Enabled |
BPI+ |
| IP Provisioning Mode |
Honor MDD |
honorMdd(4) |
|
| Downstream Bonded Channels |
| Channel |
Lock Status |
Modulation |
Channel ID |
Frequency |
Power |
SNR |
Correctables |
Uncorrectables |
| 1 |
Locked |
QAM256 |
1 |
441000000 Hz |
11.8 dBmV |
41.6 dB |
0 |
0 |
| 2 |
Locked |
QAM256 |
2 |
453000000 Hz |
11.9 dBmV |
41.5 dB |
0 |
0 |
| 3 |
Locked |
QAM256 |
3 |
459000000 Hz |
12.1 dBmV |
41.6 dB |
0 |
0 |
| 4 |
Locked |
QAM256 |
4 |
465000000 Hz |
12.3 dBmV |
41.8 dB |
0 |
0 |
| 5 |
Locked |
QAM256 |
5 |
471000000 Hz |
12.3 dBmV |
41.9 dB |
0 |
0 |
| 6 |
Locked |
QAM256 |
6 |
477000000 Hz |
12.5 dBmV |
42 dB |
0 |
0 |
| 7 |
Locked |
QAM256 |
7 |
483000000 Hz |
12.6 dBmV |
42.1 dB |
0 |
0 |
| 8 |
Locked |
QAM256 |
8 |
489000000 Hz |
12.7 dBmV |
42.2 dB |
0 |
0 |
| 9 |
Locked |
QAM256 |
9 |
495000000 Hz |
12.8 dBmV |
42.2 dB |
0 |
0 |
| 10 |
Locked |
QAM256 |
10 |
501000000 Hz |
12.9 dBmV |
42.3 dB |
0 |
0 |
| 11 |
Locked |
QAM256 |
11 |
507000000 Hz |
12.8 dBmV |
40.4 dB |
0 |
0 |
| 12 |
Locked |
QAM256 |
12 |
513000000 Hz |
12.9 dBmV |
42.2 dB |
0 |
0 |
| 13 |
Locked |
QAM256 |
13 |
519000000 Hz |
13 dBmV |
42.2 dB |
0 |
0 |
| 14 |
Locked |
QAM256 |
14 |
525000000 Hz |
12.9 dBmV |
42 dB |
0 |
0 |
| 15 |
Locked |
QAM256 |
15 |
531000000 Hz |
12.9 dBmV |
42.1 dB |
0 |
0 |
| 16 |
Locked |
QAM256 |
16 |
537000000 Hz |
13 dBmV |
42 dB |
0 |
0 |
|
|
|
| Upstream Bonded Channels (Partial Service) |
| Channel |
Lock Status |
US Channel Type |
Channel ID |
Symbol Rate |
Frequency |
Power |
| 1 |
Locked |
ATDMA |
81 |
5120 Ksym/sec |
36500000 Hz |
44 dBmV |
| 2 |
Not Locked |
Unknown |
82 |
0 Ksym/sec |
30100000 Hz |
0.0 dBmV |
| 3 |
Not Locked |
Unknown |
83 |
0 Ksym/sec |
23700000 Hz |
0.0 dBmV |
| 4 |
Not Locked |
Unknown |
84 |
0 Ksym/sec |
17300000 Hz |
0.0 dBmV |
|
BruceW
Gold Problem Solver
•
26.5K Messages
5 years ago
You need a modem appropriate for your speed tier, and you should probably have a premise tech out to take a look at signal levels and missing channels, if you can persuade Comcast to send one. Call them at the phone number on your bill or 1-800-Comcast, or use one of the options on https://www.xfinity.com/support/contact-us/.
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Nickybuttons
New Poster
•
2 Messages
5 years ago
The Modem is rated for speeds upwards to 680Mbps per Netgears site.
I have contacted Xfinity's costumers service, and they escalted my case to a higher tier of tech support . They should be calling me tomorrow Monday 6/15/2020.
What I'm trying to figure out is if it's the modem that is defective or is the signal being sent from Xfinity that is the issue.
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BruceW
Gold Problem Solver
•
26.5K Messages
5 years ago
That's a theoretical or lab-bench speed you'll never see in the real world. Manufacturer speed ratings don't matter, only the Comcast numbers do. That modem will never do 600 Mbps on their system.
Chances are the problem is a mismatch between the modem and the speed tier, and/or local signal problems. It's not likely they'll be able to fix this remotely, unless dropping to a lower speed tier takes care of the problem. And that would still leave downstream power a bit on the high side.
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