Any recommendations on dual band usb wireless adapter for Ubuntu 20.04 lts? Able to get wifi on old edimax 7811 I have not the connectivity I was getting with Windows.

Hi willie789,

Welcome to LinuxQuestions.

Could you provide some detail on the hardware you are using ? This may be important, especially if the computer has an onboard wireless adapter as well as the USB adapter you are attempting to use.

Also, when you say you are "not getting the connectivity" you were getting with Windows, do you mean the adapter doesn't work at all or something else ?

In general, from experience with any version of linux, any wireless adapter based on Broadcom chipsets can be challenging. There are a plethora of open-source and proprietary drivers ... Ralink and Marvell-based adapters have also at times given me trouble. My favourites, simply for ease of use, have been adapters with Intel and Atheros chipsets.

Cheers,

Rick

The usb device isn't really the technical way to find what is supported unfortunatly.
The actual chip that connects is how one finds support. One can search the kernel source tree to find out what is built in to generic kernels but almost no one uses generic.

Places like searching for it. https://www.amazon.com/linux-compati...e+wifi+adapter

The chipset involved in a connected device can be seen in several ways.
With a usb device the command "lsusb" displays the chipset immediately following the ID on the output line and is followed by the device name
With most other devices the command "lspci -nn" displays the chipset ID within square brackets [] immediately after the device name displayed on the output line.
Similarly the tool inxi with the proper options displays identifying data for devices attached.

Once you have the name and chipset for the device you have information with which you can easily search for drivers available in linux.

While this information does not assist in finding whether a device you are thinking about purchasing is supported, it does give a tool to assist in trouble shooting and configuring it to work. It is also information the system uses to select the proper drivers for the devices attached.

You can order USB wireless adapters guaranteed to work with Linux from ThinkPenguin.

Full disclosure: I have no relationship to ThinkPenguin other than as an occasional customer.

Thanks all for your help. Ended up getting BrosTrend 1200, loaded drivers from enclosed cd, works great.