Nighthawk CAX30 AX2700 Drops network connection randomly

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Jan 06, 2022

"I purchased this CAX30 AX2700 - Wi-Fi 6 Router and Cable Modem All In One - from Costco on October 5, 2021"

Hmm... I got mine from a Costco on Oct 13, 2021... is this a special model made for COSTCO?

Yesterday, Xfinity came out again and re-checked everything. All the signals were good at the tap and good at the house. they were measuring 5 to 6 dBmV on all channels - which is an improvement from the 4 to 5 it was before I complained about a weak signal for the 4th time.

The tech then came in the house and we ran further diagnostics, not finding an issue with the signal strength.

He called the tech help desk and then asked them to provision the modem... something I had not heard (doesnt mean it didn't happen) them do before.

I work from home - for the next 2 hours I continually dropped connection. All at once, I got a text from Xfinity -

===========================================

266278:XFINITY UPDATE
Our processes have completed for your Xfinity services. Please reply Y to confirm that your service is restored and issues have subsided or N to connect with an agent. Txt Help or Stop. Msg&DataRatesMayApply 11:25 AM

===========================================

From the time if that text, I had not had a disconnect. Sometime near 3PM I got a call from Xfinity asking me if everything was ok. I told them I was reserving judgement.

Up to the tech's visit yesterday, the disconnects had been increasing in frequency to the point of being impossible to stream TV or stay connected to my VPN for work. From the data, it appears that Xfinity boosted the signal strength from before and did the PROPER provisioning this time.

Here's what the connection looks like this morning.

<tabindex=-1>Startup Procedure</tabindex=-1>

Procedure	Status	Comment
Acquire Downstream Channel	507000000 Hz	Locked
Connectivity State	OK	Registration Complete
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	Honor MDD	IPv6 only

<tabindex=-1>Downstream Bonded Channels</tabindex=-1>

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectabables
1	Locked	256 QAM	5	507000000 Hz	6.5 dBmV	42.8 dB	0	0
2	Locked	256 QAM	1	477000000 Hz	6.2 dBmV	42.5 dB	0	0
3	Locked	256 QAM	2	483000000 Hz	6.1 dBmV	42.6 dB	0	0
4	Locked	256 QAM	3	489000000 Hz	6.3 dBmV	42.8 dB	0	0
5	Locked	256 QAM	4	495000000 Hz	6.1 dBmV	42.5 dB	0	0
6	Locked	256 QAM	6	513000000 Hz	6.1 dBmV	42.6 dB	0	0
7	Locked	256 QAM	7	519000000 Hz	6.0 dBmV	42.4 dB	0	0
8	Locked	256 QAM	8	525000000 Hz	6.2 dBmV	42.5 dB	0	0
9	Locked	256 QAM	9	531000000 Hz	6.4 dBmV	42.6 dB	0	0
10	Locked	256 QAM	10	537000000 Hz	6.5 dBmV	42.6 dB	0	0
11	Locked	256 QAM	11	543000000 Hz	6.3 dBmV	42.5 dB	0	0
12	Locked	256 QAM	12	549000000 Hz	5.9 dBmV	42.5 dB	0	0
13	Locked	256 QAM	13	555000000 Hz	5.9 dBmV	42.4 dB	0	0
14	Locked	256 QAM	14	561000000 Hz	6.1 dBmV	42.4 dB	0	0
15	Locked	256 QAM	15	567000000 Hz	6.3 dBmV	42.4 dB	0	0
16	Locked	256 QAM	16	573000000 Hz	6.2 dBmV	42.4 dB	0	0
17	Locked	256 QAM	17	579000000 Hz	6.2 dBmV	42.4 dB	0	0
18	Locked	256 QAM	18	585000000 Hz	6.2 dBmV	42.4 dB	0	0
19	Locked	256 QAM	19	591000000 Hz	6.2 dBmV	42.4 dB	0	0
20	Locked	256 QAM	33	453000000 Hz	6.2 dBmV	42.8 dB	0	0
21	Locked	256 QAM	34	459000000 Hz	6.2 dBmV	42.8 dB	0	0
22	Locked	256 QAM	35	465000000 Hz	6.3 dBmV	42.8 dB	0	0
23	Locked	256 QAM	36	471000000 Hz	6.1 dBmV	42.7 dB	0	0
24	Locked	256 QAM	38	429000000 Hz	6.5 dBmV	43.0 dB	0	0
25	Locked	256 QAM	39	435000000 Hz	6.5 dBmV	42.9 dB	0	0
26	Locked	256 QAM	40	441000000 Hz	6.1 dBmV	42.8 dB	0	0
27	Locked	256 QAM	41	447000000 Hz	6.2 dBmV	42.8 dB	0	0
28	Locked	256 QAM	42	405000000 Hz	6.4 dBmV	43.0 dB	0	0
29	Locked	256 QAM	43	411000000 Hz	6.2 dBmV	42.9 dB	0	0
30	Locked	256 QAM	44	417000000 Hz	6.1 dBmV	42.7 dB	0	0
31	Locked	256 QAM	45	423000000 Hz	6.2 dBmV	42.9 dB	0	0
32	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0

<tabindex=-1>Upstream Bonded Channels</tabindex=-1>

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	35600000 Hz	41.3 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	29200000 Hz	41.5 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	22800000 Hz	40.3 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	16400000 Hz	39.5 dBmV
5	Locked	ATDMA	5	5120 Ksym/sec	39600000 Hz	42.0 dBmV
6	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV
7	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV
8	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV

<tabindex=-1>Downstream OFDM Channels</tabindex=-1>

Channel	Channel ID	Indicator	Subcarrier Zero Frequency	Active Subcarrier Number Range	Total Codewords	Uncorrectable Codewords
1	37	Non-Primary	617.6 MHz	1108 ~ 2987	252358238	0
2	0	Other	0 MHz	0 ~ 0	0	0

<tabindex=-1>Upstream OFDMA Channels</tabindex=-1>

Channel	UpstreamIsMuted	Ranging Status	Subcarrier Zero Frequency	Active Subcarrier Number Range	Symbols Per Frame	Tx Power
1		Other	0 MHz	0 ~ 0	0	0 dBmV
2		Other	0 MHz	0 ~ 0	0	0 dBmV

Extended Upstream Transmit Power

Enable Extended Upstream Transmit Power

Current System Time: 2022-01-06 07:09:33

System Up Time: 20:14:53

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Nighthawk CAX30 AX2700 Drops network connection randomly