WiFi issues when bluetooth enabled - large latency/ping spikes every 10 seconds when connected to WiFi 7 routers

Why do I have difficulty with Wi-Fi or Bluetooth devices when USB 3 devices are attached to my computer?

Some USB 3 devices can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.4GHz band to have issues communicating with your computer. Here are some tips to avoid this issue:

• If your USB device has a cable long enough that you can move the device, place it away from your Mac—and make sure not to place it behind your Mac, or near the hinge of its display. The antennas for Wi-Fi and Bluetooth are located there, and USB 3 devices placed there might interfere with your wireless connections.

• If you're using adapters or dongles on a Mac computer with Thunderbolt 3 (USB-C) ports, plug them into the front port on the left side of your Mac, or into the ports on the right side (if your computer has them). These ports are the farthest away from the antennas, making interference less likely.

• To avoid interference on the 2.4GHz band using Wi-Fi, try using the 5GHz band instead. You can change this on your wireless base station. Bluetooth always uses 2.4GHz, so this alternative isn't available for Bluetooth.

from:

About USB on Mac computers - Apple Support

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

https://support.apple.com/en-us/HT201542

at BooneCoworking, you have made a 40 MHz wide connection in the 5GHz band using nominal cable 157, which includes all channels from 157 through 161.

You have excellent RSSI signal strength of -41 dB, where -40 is typical of 'right next to the Router' and -76 is unusably bad.

Noise at -91 seems slightly high to me. Sometimes that suggests there are other Routers on your channel.

Very puzzling:

Your report says you are using TWO (NSS:2) antennas, and MCS index 11, a modulation scheme supporting the highest speed 1K patterns per signaling interval. On a 40 MHz channel, with Phy Mode 802.11ax, that should yield 268 M bits/sec TIMES TWO antennas, or twice what you are reporting.

¿Might you have a hardware issue?

¿Did you run the wireless diagnostics quick check? (not the so-callaed "report" that is useless for all but Apple network engineers)

Wi-Fi Radio Signals from your Router fall off as the cube of the distance. Provided you are close to your Router and have clear line of sight and no competition from neighbors' Routers or known interference producers like microwave ovens, you should not be having issues.

All others need to do a more careful analysis to find out what is happening.

Wireless diagnostics:

Hold down the Option key while you click on the Wi-Fi icon on the menubar to open up the tools for investigating and fixing Wi-Fi issues

Choose "Open Wireless diagnostics", which opens the wireless diagnostics Assistant, but does not proceed.

NB> Wireless Diagnostics is an App that puts up its own MenuBar.

Using its Window menu, there are about eight different things you can do from here, but the top-level is to choose Diagnostics off the Window menu, or simply click (Continue) to do a quick check for Gross misconfiguration or operating problems. Your Admin password will be required. If any recommendations are shown, you should consider then seriously.

Next is to hold down the Option key and click the Wi-Fi icon as before. The screen that opens shows operating parameters of your Wi-Fi network. There is a great deal, of valuable information in those numbers.

Readers are eager to interpret what is going on from the values there. Screenshot, transcribe, or photograph the results and post back in a reply on the forums. Looks like this older one.

By far the easiest way to cause poor performance, instability, overheating and crashing is to install ANY third-party speeder-uppers, Cleaners, Optimizers, Third-party Virus scanners, Bit Torrent, or a VPN that you installed yourself.

Third-party file Sync-ers such as DropBox, BackBlaze, OneDrive, Carbonite, or GoogleDrive can ruin performance, but are not inherently dangerous.

They were Quickly ported from that other Operating System, and were never re-written to take advantage of the MacOS ‘File System Event Store’.  The typical brute-force search they use takes all afternoon for one pass. That relentless searching is a completely un-necessary waste of resources.

¿Are you running any of those?

<< I do use a VPN, but I'm not sure that is the problem. >>

a VPN makes changes that are so fundamental, it is extremely Common to have the entire communications system collapse. To continue testing, you should completely Un-Install every bit of VPN software. disabling it is not nearly enough.

VPN:

A virtual private network, or VPN, is a private connection over the Internet from a device to a specific network.  VPN technology is widely used in corporate environments. If you need to be "present" on an institutional network, a VPN is a great tool for accomplishing this. It is generally issued and controlled by the institution.

Almost all other uses are a SCAM. There is generally no need for you to have a private (and almost always MUCH slower) connection to a VPN vendor's Network, except to make it easier for them to harvest your data to sell. If you are behind a Router you control or Trust, there is NO security advantage whatsoever in using a VPN. Your connections are already encrypted in most cases.

If VPN vendors just stopped there, it would be bad. But many of these packages also insist on scanning all your files, non-stop, -- nominally looking for viruses, but who knows for sure what data they are harvesting. Their non-stop file reading punishes your computer's performance in the process.

Some also break into your other secure connections so they can be FIRST to examine your data, often leaving your Mac MORE vulnerable to attack.

What VPN service to use?

DON'T use VPN services

https://gist.github.com/joepie91/5a9909939e6ce7d09e29