16 inch 2019 MacBook Pro running into Broadcom WiFi driver issues on 1909

vinit130 wrote:

In NETGEAR ROUTER - Disable AX - Features such as OFDMA (uncheck)

If the routers/APs are not properly working with 802.11ac, this indicates router issues/bugs and bad implementations of 802.11ax/ay. The AP and client should negotiate before Tx/Rx starts.

From MacBook Pro (16-inch, 2019) - Technical Specifications,

Wireless

• Wi‑Fi
  • 802.11ac Wi‑Fi wireless networking; IEEE 802.11a/b/g/n compatible
• Bluetooth
  • Bluetooth 5.0 wireless technology

You might be hitting the issue with the Broadcom driver version 7.77.110.0?

https://discussions.apple.com/thread/250871188

https://answers.microsoft.com/en-us/windows/forum/all/apple-bootcamp-wifi-driver-update-as-well-as/1e25845f-a6d5-4696-9f4d-3b006dc4c1f0?auth=1

https://support.google.com/googlenest/thread/20087097?hl=en

https://www.reddit.com/r/macbookpro/comments/dyammm/heads_up_on_wifi_issues_on_windows_10_bootcamp/

eddieanthony wrote:

My router is tri-band (1 2Ghz & 2 5Ghz), and it offers an option to have the two 5Ghz bands paired into a single SSID. As soon as I turned that off (so 3 separate SSIDs), I’m now seeing full performance out of one of the 5Ghz connections.

Nice! Dual 5g antennas, will cause more problems, then they solve. Take a look at wifi-explorer-lite which is a very nice free application for the Mac. It may help you better tune the RF.

I’ll monitor it going forward, but so far it seems better than previously!

What is the brand/model of your WiFi router/gateway?

The card is OEM'd by Apple from Broadcom, but manufactured by Broadcom's Canadian subsidiary. It is all right.

On my 2013 rMBP, I have

The VID is 0x14E4, and PID is 0x7BF (in your case) and 0x112 (in my case).

Can you try and test with the two separate SSID method?

Based on eddieanthony's post on the first page, on a hunch, I checked the 2018 and 2019 13-in rMBPs I have which have the same PID/VID as the 2019 16-in rMBP. This implies the card has been around since Broadcom unveiled it in 2017 (most likely the MAX series). On 2018/2019 rMBPs with 802.11ac APs (Apple Time Capsules/Extremes), the speed is at line-rate, on both macOS and W10 1903. It makes me suspect that the new AX routers are still in an experimental stage. This is on Verizon FIOS with 100/100Mbps service.

andysd wrote:

You might be hitting the issue with the Broadcom driver version 7.77.110.0?

This driver is not valid for the new 16-in rMBP, which has a different Broadcom configuration. Check the PID/VID on the new rMBP.

eddieanthony wrote:

I have an ASUS GT-AX11000

It seems to have issues with the 2.4g Radio.

Speedtest tells me that my connection is fairly steady now, but actual downloads are still all over the place. How would I go about tuning the RF?

Pick a specific download server, say Microsoft, and run the same download at different times of day and track throughput and latency. The WiFi Lite explorer will let you look at any congestion or DFS changes.

For the time being, I recommend keeping the two 5G radios on separate SSIDs. Consumer wireless mesh networking is still immature. Even Enterprise-level mesh designs are very messy and nasty.

NETGEAR AX Routers / same issue with ASUS AX Routers. MB Pro 16-2019, Mac Pro 2018 , all worked well on MAC (No Speed Issue). But same hardware fails over BootCamp running Windows 10 Pro.

it is quite frustrating when to work at 28MBps speed from 500MBps. :)

vinit130 wrote:

NETGEAR AX Routers / same issue with ASUS AX Routers. MB Pro 16-2019, Mac Pro 2018 , all worked well on MAC (No Speed Issue). But same hardware fails over BootCamp running Windows 10 Pro.

If the same hardware functions correctly, with the AX routers and the incorrect settings, in macOS, but does not function correctly in W10, the issue is related to the handling of 802.11 frames by the W10 driver and what it is negotiating with the AP/Router.

it is quite frustrating when to work at 28MBps speed from 500MBps. :)

There have been similar issues with the 7.35.x.x drivers in the past, where macOS worked fine, but W10 driver favored either 11n or 11ac, but would not work correctly with dual-band routers.

Windows Speedtest...

Do you have a dual-band Wireless network?