1 Message
Wired and Wifi Speed fluctuation to the point of frequent disconnections. Started Yesterday, continuing into today.
Hello,
I have the 1200MB plan from Xfinity, and I'm using their equipment. I've had no issues since it was installed a little over a year ago. Yesterday I noticed a bunch of times where I'd flat out lose internet, or it would be very slow. My PC is hardwired with ethernet to the Xfinity Modem. At the same time I would check my Iphone on the Wifi, same issue either completely lost Wifi and using 5G, or really slow loading times. This happened frequently throughout the day. I chalked it up to maybe Xfinity having an issue yesterday.
Today I noticed same thing, and I ran speedtests from Ookla, and the Xfinity Speedtest both on my PC wired to modem, and on my Iphone on the wifi. Both would be fluctuating between tests showing like 40MB-900MB and anywhere in between. During troubleshooting with Xfinity, we power cycled many times, ensured all cables are proper, and he tried a few things on his end, and I was getting ~900MB down and it seemed stable, but then only a few minutes later and a few tests later it just kept going back down under 100MB. They are shipping me a new modem to try but I still wanted to post here to see if it's something I can fix today.
Some possible helpful information:
Modem Model: CGM4331COM
Uptime (as of me making post): 42 Mins
|
Downstream
|
Channel Bonding Value | |||||||||||||||||||||||||||||||
| Channel ID |
13
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
42
|
43
|
44
|
45
|
32
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
|
| Frequency |
489 MHz
|
417 MHz
|
423 MHz
|
429 MHz
|
435 MHz
|
441 MHz
|
447 MHz
|
453 MHz
|
459 MHz
|
465 MHz
|
471 MHz
|
477 MHz
|
483 MHz
|
495 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
|
393 MHz
|
399 MHz
|
405 MHz
|
411 MHz
|
690000000
|
| SNR |
41.4 dB
|
41.1 dB
|
41.8 dB
|
42.0 dB
|
41.9 dB
|
41.8 dB
|
41.9 dB
|
41.9 dB
|
41.8 dB
|
41.6 dB
|
41.6 dB
|
41.7 dB
|
41.7 dB
|
41.2 dB
|
41.5 dB
|
40.9 dB
|
41.0 dB
|
42.1 dB
|
40.5 dB
|
30.5 dB
|
32.5 dB
|
36.1 dB
|
40.3 dB
|
41.2 dB
|
41.2 dB
|
41.2 dB
|
41.0 dB
|
41.9 dB
|
41.6 dB
|
41.6 dB
|
41.0 dB
|
0.0 dB
|
| Power Level |
-5.6 dBmV
|
-5.3 dBmV
|
-5.5 dBmV
|
-5.2 dBmV
|
-5.3 dBmV
|
-5.4 dBmV
|
-5.1 dBmV
|
-5.2 dBmV
|
-5.2 dBmV
|
-5.5 dBmV
|
-5.2 dBmV
|
-5.3 dBmV
|
-5.4 dBmV
|
-5.5 dBmV
|
-5.8 dBmV
|
-6.5 dBmV
|
-6.1 dBmV
|
-4.6 dBmV
|
-6.3 dBmV
|
-8.9 dBmV
|
-7.9 dBmV
|
-6.6 dBmV
|
-5.8 dBmV
|
-6.4 dBmV
|
-5.9 dBmV
|
-6.0 dBmV
|
-6.2 dBmV
|
-5.3 dBmV
|
-5.4 dBmV
|
-5.4 dBmV
|
-5.7 dBmV
|
-6.7 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
|
OFDM
|
|
Upstream
|
Channel Bonding Value | |||||
| Channel ID |
2
|
3
|
4
|
9
|
10
|
|
|---|---|---|---|---|---|---|
| Lock Status |
Locked
|
Locked
|
Locked
|
Locked
|
Locked
|
|
| Frequency |
16 MHz
|
22 MHz
|
29 MHz
|
35 MHz
|
40 MHz
|
|
| Symbol Rate |
5120
|
5120
|
5120
|
5120
|
2560
|
|
| Power Level |
45.5 dBmV
|
45.0 dBmV
|
46.5 dBmV
|
47.3 dBmV
|
48.8 dBmV
|
|
| Modulation |
QAM
|
QAM
|
QAM
|
QAM
|
QAM
|
|
| Channel Type |
ATDMA
|
ATDMA
|
ATDMA
|
ATDMA
|
ATDMA
|
|
And here are Firewall Logs which I think are relevant? Unsure. I can share further logs if you let me know what I'm looking for.
Yesterday:
| FW.IPv6 INPUT drop , 3 Attempts, 2024/6/4 12:49:03 | Firewall Blocked | |
| FW.IPv6 FORWARD drop , 340 Attempts, 2024/6/4 12:10:25 | Firewall Blocked | |
| FW.WANATTACK DROP , 1 Attempts, 2024/6/4 03:44:08 | Firewall Blocked | |
| FW.IPv6 FORWARD drop , 1043 Attempts, 2024/6/3 18:55:14 | Firewall Blocked | |
| FW.IPv6 INPUT drop , 137 Attempts, 2024/6/3 12:56:09 | Firewall Blocked |
Today:
| FW.IPv6 INPUT drop , 3 Attempts, 2024/6/4 12:49:03 | Firewall Blocked | |
| FW.IPv6 FORWARD drop , 340 Attempts, 2024/6/4 12:10:25 | Firewall Blocked | |
| FW.WANATTACK DROP , 1 Attempts, 2024/6/4 03:44:08 | Firewall Blocked |
Any help is greatly appreciated, I am unable to really do much on my PC until this gets resolved.
If you need further information from me or from the modem logs or anything please let me know.
Edit - Adding Event Logs from Yesterday and Today as well:
Event Logs
All logs from Yesterday:
[Wifi][7480]: WiFi radio radio1 is set to UP 2024/6/4 12:06:16 Notice
[Wifi][7480]: KeyPassphrase Changed 2024/6/4 12:06:14 Notice
[Wifi][7480]: WiFi radio radio2 is set to UP 2024/6/4 12:06:14 Notice
[Wifi][7480]: WiFi radio radio1 is set to UP 2024/6/4 12:06:12 Notice
[Wifi][7495]: WiFi radio radio1 is set to UP 2024/6/4 11:51:16 Notice
[Wifi][7495]: KeyPassphrase Changed 2024/6/4 11:51:14 Notice
[Wifi][7495]: WiFi radio radio2 is set to UP 2024/6/4 11:51:14 Notice
[Wifi][7495]: WiFi radio radio1 is set to UP 2024/6/4 11:51:12 Notice
[Wifi][7453]: WiFi radio radio1 is set to UP 2024/6/4 08:31:11 Notice
[Wifi][7453]: KeyPassphrase Changed 2024/6/4 08:31:09 Notice
[Wifi][7453]: WiFi radio radio2 is set to UP 2024/6/4 08:31:09 Notice
[Wifi][7453]: WiFi radio radio1 is set to UP 2024/6/4 08:31:07 Notice
[Wifi][7504]: WiFi radio radio1 is set to UP 2024/6/4 08:02:40 Notice
[Wifi][7504]: KeyPassphrase Changed 2024/6/4 08:02:38 Notice
[Wifi][7504]: WiFi radio radio2 is set to UP 2024/6/4 08:02:38 Notice
[Wifi][7504]: WiFi radio radio1 is set to UP 2024/6/4 08:02:36 Notice
[Wifi][7523]: WiFi radio radio1 is set to UP 2024/6/3 17:04:54 Notice
[Wifi][7523]: KeyPassphrase Changed 2024/6/3 17:04:52 Notice
[Wifi][7523]: WiFi radio radio2 is set to UP 2024/6/3 17:04:52 Notice
[Wifi][7523]: WiFi radio radio1 is set to UP 2024/6/3 17:04:50 Notice
[Wifi][7462]: WiFi radio radio1 is set to UP 2024/6/3 12:51:35 Notice
[Wifi][7462]: KeyPassphrase Changed 2024/6/3 12:51:33 Notice
[Wifi][7462]: WiFi radio radio2 is set to UP 2024/6/3 12:51:33 Notice
[Wifi][7462]: WiFi radio radio1 is set to UP 2024/6/3 12:51:32 Notice
Today:
| [Wifi][7480]: WiFi radio radio1 is set to UP | 2024/6/4 12:06:16 | Notice |
| [Wifi][7480]: KeyPassphrase Changed | 2024/6/4 12:06:14 | Notice |
| [Wifi][7480]: WiFi radio radio2 is set to UP | 2024/6/4 12:06:14 | Notice |
| [Wifi][7480]: WiFi radio radio1 is set to UP | 2024/6/4 12:06:12 | Notice |
| [Wifi][7495]: WiFi radio radio1 is set to UP | 2024/6/4 11:51:16 | Notice |
| [Wifi][7495]: KeyPassphrase Changed | 2024/6/4 11:51:14 | Notice |
| [Wifi][7495]: WiFi radio radio2 is set to UP | 2024/6/4 11:51:14 | Notice |
| [Wifi][7495]: WiFi radio radio1 is set to UP | 2024/6/4 11:51:12 | Notice |
| [Wifi][7453]: WiFi radio radio1 is set to UP | 2024/6/4 08:31:11 | Notice |
| [Wifi][7453]: KeyPassphrase Changed | 2024/6/4 08:31:09 | Notice |
| [Wifi][7453]: WiFi radio radio2 is set to UP | 2024/6/4 08:31:09 | Notice |
| [Wifi][7453]: WiFi radio radio1 is set to UP | 2024/6/4 08:31:07 | Notice |
| [Wifi][7504]: WiFi radio radio1 is set to UP | 2024/6/4 08:02:40 | Notice |
| [Wifi][7504]: KeyPassphrase Changed | 2024/6/4 08:02:38 | Notice |
| [Wifi][7504]: WiFi radio radio2 is set to UP | 2024/6/4 08:02:38 | Notice |
| [Wifi][7504]: WiFi radio radio1 is set to UP | 2024/6/4 08:02:36 | Notice |
XfinityArmand
Official Employee
•
2.2K Messages
1 year ago
Thanks so much for taking the time to reach out to Xfinity Support here on our Community Forum @reportscore! We are glad to hear from you and more than happy to help in any way that we can with your internet service concerns. No worries! You have reached out to the right team to get things squared away. We're here to ensure that our subscribers are having an all around top tier experience with their service. When we learn that you're having an issue, we take issue with that and make it our issue. We're going to work hard to get you back up and running without any problems. So that we can get started, please feel free to shoot us a private message so that we can get the ball rolling on this.
To send a "direct message" / "private message" message to Xfinity Support:
• Click "Sign In" if necessary
• Click the "Direct Message" icon or https://forums.xfinity.com/direct-messaging
• Click the "New message" (pencil and paper) icon
• The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there
• - As you are typing a drop-down list appears. Select "Xfinity Support" from that list
• - An "Xfinity Support" graphic replaces the "To:" line
• Type your message in the text area near the bottom of the window
• Press Enter to send it
(edited)
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