In general, check for firmware updates for the Arris Wi-Fi router, check for interference locally, and test for problems using a different Wi-Fi network. If there are any add-on VPN apps, temporarily remove them and restart.
Two sets of data requested:
- the first is the hardware and software inventory, and…
- the second is a Wi-Fi overview.
Please download and run (free) EtreCheck, and share the results to the clipboard. Then open a new reply here, and press the Additional Text button that looks like a printed page, and paste and post the hardware and software configuration report here. From that, we can get a little more detail about what is installed and what is running here.
On Mac, the basic Wi-Fi environment characteristics are visible when using Option-Click on the Wi-Fi logo 🛜 in the menu bar to capture some Wi-Fi network data.
For us to look at the Wi-Fi network data here, post the items shown in the following image including the Security mode and from Channel to NSS inclusive (Security, Channel, Country, RSSI, Noise, Tx Rate, PHY mode, MCS, NSS, green highlight) (without posting the Wi-Fi address, any local HotSpots that might be present, the network name, or the BSSID, all of which are expurgated from the image shown below, red highlight), and we can take a look at the basic network environment.
