Skip to main content

    Support

    Offers

U
user_izk211
1st Topic
1st Like
1st Reply

5 Messages

Sunday, April 7th, 2024 1:44 AM

Closed

Not getting 200mbps - tried everything…restarting, resetting, contacting support

I’ve tried everything to get more than 80mbps upload speed when my plan supports 200mbps.  I have no issue with the download speed—I get 1200mbps download speed.  Please help.

Question

 • 

Updated 

1 year ago

98

3

BruceW

Gold Problem Solver

 • 

26.3K Messages

1 year ago

... 80mbps upload speed when my plan supports 200mbps ... I get 1200mbps download speed ...

Please post your the following information from your modem or gateway (from http://192.168.100.1 or http://10.0.0.1):

  • model number
  • uptime
  • downstream: power levels, SNR (or MER), OFDM data, and error counts for all channels
  • upstream: power levels and OFDMA data for all channels
  • complete event log, if available (Be sure to remove or blot out any MAC addresses. Forum security processing considers them "personal information" and may prevent the event log from posting if these are present.)

Copy and pasted text is preferred over images. Be aware that, if you post any images, your message will be made Private for a time, as all images must be approved by the Forum Moderators before the messages containing them become generally visible.

1

0

user_izk211

5 Messages

Model: CGM4981COM

BOOT Version: S1TC-3.81.21.97

Download Version: Prod_22.2_d31 & Prod_22.2
System Uptime: 0 days 2h: 54m: 22s (it was 3 days but I just restarted again to try to fix)

Upstream
Channel Bonding Value
Channel ID
17
18
19
20
Lock Status
Locked
Locked
Locked
Locked
Frequency
16 MHz
22 MHz
29 MHz
35 MHz
Symbol Rate
5120
5120
5120
5120
Power Level
42.8 dBmV
43.0 dBmV
43.5 dBmV
43.5 dBmV
Modulation
QAM
QAM
QAM
QAM
Channel Type
ATDMA
ATDMA
ATDMA
ATDMA

*Channel ID 4 is the Primary channel
Downstream
Channel Bonding Value
Channel ID
4
1
2
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
193
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
435 MHz
417 MHz
423 MHz
429 MHz
441 MHz
447 MHz
453 MHz
459 MHz
465 MHz
471 MHz
477 MHz
483 MHz
489 MHz
495 MHz
501 MHz
507 MHz
513 MHz
519 MHz
525 MHz
531 MHz
537 MHz
543 MHz
549 MHz
555 MHz
561 MHz
567 MHz
573 MHz
579 MHz
585 MHz
591 MHz
597 MHz
603 MHz
957000000
SNR
44.5 dB
44.4 dB
44.5 dB
44.5 dB
44.7 dB
44.9 dB
44.8 dB
44.8 dB
45.0 dB
44.8 dB
45.0 dB
44.9 dB
44.9 dB
44.9 dB
44.8 dB
44.9 dB
45.1 dB
45.0 dB
45.0 dB
44.9 dB
44.8 dB
45.0 dB
44.7 dB
44.7 dB
44.9 dB
44.9 dB
44.7 dB
45.3 dB
45.0 dB
44.9 dB
45.0 dB
45.0 dB
44.5 dB
Power Level
10.9 dBmV
10.7 dBmV
11.1 dBmV
11.0 dBmV
11.1 dBmV
11.4 dBmV
11.4 dBmV
11.5 dBmV
11.5 dBmV
11.6 dBmV
11.8 dBmV
11.8 dBmV
11.9 dBmV
12.0 dBmV
11.8 dBmV
12.0 dBmV
12.2 dBmV
11.9 dBmV
12.0 dBmV
11.9 dBmV
11.9 dBmV
12.4 dBmV
12.1 dBmV
12.2 dBmV
12.7 dBmV
12.6 dBmV
12.5 dBmV
13.0 dBmV
12.8 dBmV
12.5 dBmV
13.1 dBmV
13.0 dBmV
14.3 dBmV
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
OFDM

CM Error Codewords
Channel ID
4
1
2
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
193
Unerrored Codewords
80608116
472177601
472172493
472189539
472195287
472200236
472205410
472210817
472215806
472221331
472225624
472230653
472235592
472240064
472245617
472251101
472255149
472260219
472265651
472270937
472275554
472280654
472285849
472291653
472296927
472301446
472305976
472311756
472316612
472334037
472319375
472321925
80608116
Correctable Codewords
1873430
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1873430
Uncorrectable Codewords
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

1 year ago

0

BruceW

Gold Problem Solver

 • 

26.3K Messages

1 year ago

Model: CGM4981COM ...

That's what Comcast calls an XB8 ( Technicolor) gateway (see https://www.xfinity.com/support/articles/broadband-gateways-userguides ), but there doesn't seem to be any OFDMA data. The OFDMA data is especially important as it is what enables the higher upload speeds. Doesn't the gateway report this?

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

(edited)

1

0

user_izk211

5 Messages

Thanks, that's helpful and I just did a search and found this article (similar issue with no OFDMA).  But what should I do now?  I don't know how to get Xfinity support to understand I have this issue and they just keep asking me to restart my gateway to no end.

https://forums.xfinity.com/conversations/your-home-network/unable-to-reach-200mbps-upload-no-ofdma-upload-channel/65495d7002c19a64afb14966

1 year ago

0

XfinityChelseaB

Official Employee

 • 

1.7K Messages

1 year ago

Hello @user_izk211, Thanks so much for taking a moment out of your day to leave a post on our community forum. Have you already had a technician out to your home to check to make sure there is not a block on the line?

0

0

forum icon

New to the Community?

Start Here