CBR750 slow network and disconnects

[AGLang]

Purchased a CBR750 with 1 satellite a little less than 6 months ago, and I have had nothing but issues with it.

Bad connectivity to the internet, constantly having to reboot it.

Recently moved to a new apartment, had the Spectrum technician out to set it up, and a few days later it started happening. Bad internet connectivity at random times during the day, dropped out of meetings on teams etc.

See attached document showing setup, logs and connection status.

[FURRYe38]

You got some criticals that the ISP should review and help resolve:

Sep 13 2022 03:20:09 Critical (3) No Ranging Response received - T3 time-out
Sep 13 2022 03:26:17 Notice (6) US profile assignment change. US Chan ID: 1
Sep 13 2022 07:56:43 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Sep 13 2022 07:56:54 Alert (2) CM Certificate Error < ISP should look at this as well.

Power levels are good. A few Correct and Uncorrectables but nothing to worry too much about. 

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/

What channels are you using? Auto? Try Auto and 48 on 5Ghz. Or 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?

Do you have a RBS deployed as well or only the CBR? 

[AGLang]

What channels are you using?

(2.4GHz) Auto and  (5GHz) 48Auto? 

Any Wifi Neighbors near by? If so, how many?

I see 6 other SSID's

Do you have a RBS deployed as well or only the CBR? 

1 RBS. The area we live in is very small, 2 bedroom apartment on the floor

[FURRYe38]

Ok. What is the sq feet of this place? 

Possible having too much signal in a small place will cause problems. Lets turn OFF The RBS for now and see how it goes. 

https://youtu.be/UR0viMLISz4

I would also reduce the transmit power on the CBR from 100% to 50% as well. Under Advanced Tab/Advanced Settings/Wireless Settings

[AGLang]

~1000 sq ft

already reduced transmit power to 50% on 2.4GHz and 5GHz. did not solve the issue.

[FURRYe38]

Did you turn OFF the RBS? 
 For that size of place, an RBS won't be needed. 

What FW version is loaded on the RBS and CBR? 

[AGLang]

CBR: V4.6.5.8

I disconnected the RBS, will see what happens.

[AGLang]

Just ran a speed test

275.2

Mbps download

0.09 

Mbps upload

This is not working.. We have 500/20 Mbps 

[FURRYe38]

This is with two different wired PCs and or wireless devices? 

[AGLang]

Only wireless devices, no wired pcs. 

Did have technician out, he hooked us up directly to the ISP provider with no splitter in between. there's no coaxial splitter between provider and my CBR750 now.

will see if it changed anything... He mentioned our VPN connection for work could be the issue?

[FURRYe38]

Ok I see. Ya VPN can slow things down...Let us know how it goes.