Re: CAX80 can't upload 5GHZ

AlexanderSextus · ‎2021-11-03

Im having serious issues trying to get this figured out, ive tried playing with everything for teh last 6 hours to get my uploads to work in 5ghz mode. Im literally 25 feet from the router and any file over 4MB just doesnt upload on sites like Wetransfer or Dropbox, icloud, email etc.

For example trying to upload a 19MB file will progess up to 40% on weTrafsnfer then suddenly drop down to 12% then shoot up to 75% and then down to 27% etc.

This DOES NOT happen in 2.4ghz mode where i can uplaod anything... help please!

yatman60 · ‎2023-06-14

Firmware version 5.1.1.2 is what everyone needs to push for to be released.

View solution in original post

FURRYe38 · ‎2021-11-03

Does this happen with a different wifi PC or laptop?

Do wired ethernet connections work for the upload?

Use a browser? Which browser? Try a different browser as well.

How do you have the 5Ghz wifi configured?

What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?

Is Smart Connect enabled?

Try enabling Beamforming and MIMO(MIMO may or may not be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings

Is Armor enabled?

What Firmware version is currently loaded?

Has a factory reset and setup from scratch been performed since last FW update? A complete pull of the power adapter for a period of time after the factory reset then walk thru the setup wizard and setup from scratch.

AlexanderSextus · ‎2021-11-03

Does this happen with a different wifi PC or laptop? YES

Do wired ethernet connections work for the upload? YES

Use a browser? Which browser? Try a different browser as well. Tried Safari & Chrome, Both fail on 5GHZ.

How do you have the 5Ghz wifi configured? Stock Settings

What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz. Tried, No luck.
Any Wifi Neighbors near by? If so, how many? A few, live in condo.

Is Smart Connect enabled? No, however when enabled, upload doesnt work.

Try enabling Beamforming and MIMO(MIMO may or may not be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings - already on.

Is Armor enabled? - no expired.

What Firmware version is currently loaded? latest, 2.1.2.6

Has a factory reset and setup from scratch been performed since last FW update? A complete pull of the power adapter for a period of time after the factory reset then walk thru the setup wizard and setup from scratch. - Done, 100x

FURRYe38 · ‎2021-11-03

"Is Smart Connect enabled? No, however when enabled, upload doesnt work." So 5Ghz upload works if you don't have Smart Connect enabled?

What channels are you using on 5Ghz and what channels are your nighbors using on 5Ghz?

AlexanderSextus · ‎2021-11-03

This is so frustataring,

Is Smart Connect enabled? I just enabled it and its hit or miss, contingent on applicaton I cant upload files! icloud mail = NOPE, Outlook = yes.

Wetransfer = NOPE, DROP BOX = YES.

What channels are you using on 5Ghz and what channels are your nighbors using on 5Ghz? With Smartconncet its on 48.

plemans · ‎2021-11-04

What version of the firmware are you running on it?

If it updated firmware (automatically), have you ever tried a simple factory reset/reinstall?

My_Username · ‎2021-11-04

2.1.3.5 just became available for the CAX80. I just updated and it got me this far. I don't know if it will be helpful for your issue as 5GHz always worked for me.

Something to try though...

AlexanderSextus · ‎2021-11-04

Strange, i dont see that update?

Also, i bought a NEW CAX80, set it up and am habing the same issue..... on a NEW DEVICE.

SPENT 2 hours with Netgear support to no avail... in anycase maybe theres something wrong here in my cable connection?

Everything else on this router is bone STOCK, as in out of teh box fresh.

My_Username · ‎2021-11-04

I didn't find it on Netgears support page.

I opened the routers setup web page, then Advanced/Administration/Router Update. I pressed the "Check" button, the router phoned home and found the update.

plemans · ‎2021-11-04

A lot of times the auto update server gets the update first and then it goes to the support site.

FURRYe38 · ‎2021-11-04

Let see if we can get these pictures approved...

AlexanderSextus · ‎2021-11-04

Just updated and no luck. STILL have issues uploading to websites like Wetransfer.

However now dropbox is cool to upload to? now im super confused.

help.

FURRYe38 · ‎2021-11-04

Did you factory reset the modem and setup from scratch after you updated?

@AlexanderSextus wrote:

Just updated and no luck. STILL have issues uploading to websites like Wetransfer.

However now dropbox is cool to upload to? now im super confused.

help.

plemans · ‎2021-11-04

Have you tried a different DNS provider?

AlexanderSextus · ‎2021-11-04

Cable Diagnostic

Status: Good

Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.

Internet Access:

Downstream Status:

Upstream Status:

Refresh Save Cable Diagnostic Info

Advanced Information

Frequency Start Value

This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.

Starting Frequency

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	645 MHz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	256 QAM	36	645000000 Hz	4.7 dBmV	45.5 dB	0	0
2	Locked	256 QAM	9	471000000 Hz	4.0 dBmV	45.9 dB	0	0
3	Locked	256 QAM	10	477000000 Hz	4.0 dBmV	45.7 dB	0	0
4	Locked	256 QAM	11	483000000 Hz	4.1 dBmV	45.8 dB	0	0
5	Locked	256 QAM	12	489000000 Hz	4.2 dBmV	45.7 dB	0	0
6	Locked	256 QAM	13	495000000 Hz	3.9 dBmV	45.5 dB	0	0
7	Locked	256 QAM	14	507000000 Hz	4.3 dBmV	45.8 dB	0	0
8	Locked	256 QAM	15	513000000 Hz	4.0 dBmV	44.6 dB	0	0
9	Locked	256 QAM	16	519000000 Hz	4.0 dBmV	38.2 dB	0	0
10	Locked	256 QAM	17	525000000 Hz	4.3 dBmV	42.2 dB	0	0
11	Locked	256 QAM	18	531000000 Hz	4.0 dBmV	43.0 dB	0	0
12	Locked	256 QAM	19	537000000 Hz	4.4 dBmV	44.4 dB	0	0
13	Locked	256 QAM	20	543000000 Hz	4.3 dBmV	45.4 dB	0	0
14	Locked	256 QAM	21	555000000 Hz	4.3 dBmV	42.1 dB	0	0
15	Locked	256 QAM	22	561000000 Hz	4.6 dBmV	36.4 dB	0	0
16	Locked	256 QAM	23	567000000 Hz	4.3 dBmV	41.0 dB	0	0
17	Locked	256 QAM	24	573000000 Hz	4.4 dBmV	39.3 dB	0	0
18	Locked	256 QAM	25	579000000 Hz	4.4 dBmV	43.1 dB	0	0
19	Locked	256 QAM	26	585000000 Hz	4.9 dBmV	45.7 dB	0	0
20	Locked	256 QAM	27	591000000 Hz	5.0 dBmV	45.8 dB	0	0
21	Locked	256 QAM	28	597000000 Hz	5.2 dBmV	45.9 dB	0	0
22	Locked	256 QAM	29	603000000 Hz	4.9 dBmV	45.8 dB	0	0
23	Locked	256 QAM	30	609000000 Hz	5.3 dBmV	45.9 dB	0	0
24	Locked	256 QAM	31	615000000 Hz	5.1 dBmV	45.8 dB	0	0
25	Locked	256 QAM	32	621000000 Hz	5.1 dBmV	45.6 dB	0	0
26	Locked	256 QAM	33	627000000 Hz	5.2 dBmV	45.1 dB	0	0
27	Locked	256 QAM	34	633000000 Hz	5.0 dBmV	44.8 dB	0	0
28	Locked	256 QAM	35	639000000 Hz	4.8 dBmV	45.2 dB	0	0
29	Locked	256 QAM	37	651000000 Hz	4.5 dBmV	45.3 dB	0	0
30	Locked	256 QAM	38	657000000 Hz	4.3 dBmV	45.2 dB	0	0
31	Locked	256 QAM	39	663000000 Hz	4.4 dBmV	45.2 dB	0	0
32	Locked	256 QAM	40	669000000 Hz	4.2 dBmV	44.7 dB	0	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	2	5120 Ksym/sec	29200000 Hz	42.0 dBmV
2	Locked	ATDMA	1	5120 Ksym/sec	35600000 Hz	42.0 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	22800000 Hz	41.8 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	16400000 Hz	41.8 dBmV
5	Not Locked	Unknown	0	0	0	0.0 dBmV
6	Not Locked	Unknown	0	0	0	0.0 dBmV
7	Not Locked	Unknown	0	0	0	0.0 dBmV
8	Not Locked	Unknown	0	0	0	0.0 dBmV

Downstream OFDM Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0 ,1	193	690000000 Hz	3.68 dBmV	44.1 dB	1228 ~ 2867	4057813	576682	0
2	Not Locked	0	0	0 Hz	0 dBmV	0 dB	0 ~ 4095	0	0	0

Upstream OFDMA Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	0	0	0 Hz	0 dBmV
2	Not Locked	0	0	0 Hz	0 dBmV

Extended Upstream Transmit Power

Enable Extended Upstream Transmit Power

Current System Time:Thu Nov 04 13:49:23 2021

System Up Time:00:12:00

AlexanderSextus · ‎2021-11-04

Here are my speedtests...

I'm with Xfinity, my plan is 1200 Down & 35 Up

5G - Upload Spikes to 9Mbps then drops... ive even seen it settle @ 1.5Mbps.

DOWNLOAD Mbps

409.81

UPLOAD Mbps

3.98

2.4G

DOWNLOAD Mbps

79.96

UPLOAD Mbps

15.92

HARDWIRED

DOWNLOAD Mbps

923.67

UPLOAD Mbps

41.73

AlexanderSextus · ‎2021-11-08

I had comcast send out a tech. We replaced teh Cable comming into my unit and still have issues. The problem here is with Netgear. And support is AWEFUL. Had to call multiple times and was told i would get a call back from higher level support and nothing.

I've never seen anything like this before and i've ALWAYS used netgear routers. Very disapointed.

for whatever its worth, the tech told me that he saw "FM noise", he was forign so his accent was a bit strong and i count exactly understand but he sure said noise and that the issue lies with teh unit.

what are the chances of having 2 bad systems? Im going to best buy to return this unit and get a 3rd... fingers crossed.

FURRYe38 · ‎2021-11-08

I'll see if someone at NG can review this. Not sure what FM Noise means. FM doesn't run anywhere near 5Ghz.

@vkdelta

AlexanderSextus · ‎2021-11-08

just to put my concerns to rest i went back to bestbuy and bought another CAX80... same issue.

NO IDEA what is going on here. Comcast is 100% good from teh tap to my home teh problem is with teh router, perhaps there is a setting that needs to altered. Im exhausted with this.

FURRYe38 · ‎2021-11-08

What is the brand and model# of these wifi adapters in the computers your using?

Have the drivers for these wifi adapters been updated?

Wondering if there is a problem between the CAX wifi and your wifi adapters.

AlexanderSextus · ‎2021-11-08

I only have apple products.

2017 imac, and 2017 macbook pro all running latest macOS

I did have the issue on a windows 10 computer as well.

FURRYe38 · ‎2021-11-08

What is the brand and model of the wifi adapter on the Windows PC?

Ok. I guess I should try my CAX80 in router mode and see if my Mac Book Pro 2018 sees same thing.

What are the current wifi settings set for on the CAX?

Smart Connect enabled or disabled?

Channels being used?

WMM enabled or disabled?

Any Implicit Beamforming and MIMO enabled or disabled?

tdalias · ‎2021-11-25

For the 5ghz network only, I'm having the same issue from my windows PC. I cannot upload to wetransfer.com/onedrive sync but I can do upload speed tests without visible issues.

I do not have this issue on my android phone using the same 5ghz network.

Disabling beamforming, MuMIMO, and AX does not resolve the issue. But it does upload more data before erroring.

Typically, it stops uploading at the 1MB mark.

Clean install of windows

Lastest cax80 firmware

No modem errors

Modem/computer have unobstructed line of site, about 20ft separation.

FURRYe38 · ‎2021-11-26

Does a wired connection exhibit the same thing?

Has a factory reset and setup from scratch been performed since last FW update?

@tdalias wrote:

For the 5ghz network only, I'm having the same issue from my windows PC. I cannot upload to wetransfer.com/onedrive sync but I can do upload speed tests without visible issues.

I do not have this issue on my android phone using the same 5ghz network.

Disabling beamforming, MuMIMO, and AX does not resolve the issue. But it does upload more data before erroring.

Typically, it stops uploading at the 1MB mark.

Clean install of windows

Lastest cax80 firmware

No modem errors

Modem/computer have unobstructed line of site, about 20ft separation.

AlexanderSextus · ‎2021-11-26

Good luck.

Netgear support is trash. They didn’t hella me kept asking me to do the same BS resets every time. I still don’t have a solution and I bought 3 of the damn things to make sure it was a hardware issue. Seems to be a software one.

Comcast came to my place and replaced all the lines and confirmed all good. I will never buy another netgear product after they kept tying to sell me extended services after failing to solve this issue. If you can return it I suggest you do so.