Running Fedora 43 and have the above-reference USB wifi that indicates on it that it is 150Mbps and most of the time Network manager indicates that it is running there as well, but at times it’ll drop to 72Mbps and require reboot to get it back to 150Mbps… sometimes it even drops to 11Mbps - don’t know why as the Verison 5G router is only a few feet away and nothing physically changes in my setup - a laptop (Gateway E-475M) just sits in same place all the time. Network Manager identifies it as Qualcomm Atheros AR9271. The change seems to happen upon restoring from hibernation - never when resuming from suspend. Boot is always at the 150Mbps…
the speed depends not only on the router and the wifi adapter, it also depends on noise and interference from other networks in the same channel
the hibebernation, are you talking about sleep? one thing is hibernation, another is sleep
sleep is suspend to ram, hibernation is suspend to disk, which one are you using, both? in my personal experience, the sleep can cause the behavior you describe, also leave you without ethernet, no sound, or no video, and in linux too
i try to avoid suspend to disk, or hibernation
is the adapter working in the 2.4 or in the 5ghz network? you seem to suggest that is on the 5 one, that also affects, 150mbps often translates to 2.4ghz network that in practice ofthe is like 40 mbps in practice
i personally never had great experiences with atheros adapters on linux, in general, so i avoid them, i try to get broadcom or intel when possible, better drivers, less problems
But booting up moments later and the 150Mps is restored, so wouldn’t local RFI still be affecting it and put it back at 72 or 11Mbps?
Like I said, The change seems to happen upon restoring from hibernation - never when resuming from suspend. Boot is always at the 150Mbps…
Stats say:
WiFi 4 (802.11n), 2.4GHz CH.11, 40MHz width, Modulation MCS 7 - 1x1 MIMO GI 0.4µs, -29dBm, WPA2
Network Manager identifies it as Qualcomm Atheros AR9271 - don’t know how to switch from Qualcomm to Broadcom or Intel driver… it’s just what Fedora picked…
you dont choose the driver, the chip in the adapter is what mandates the driver module that will be used by the linux kernel, it is not any driver on any chip, my comment points to choose the wifi adapter in terms of the chip it has inside when buying a wifi adapter
with the numbers you mention it is indeed a 2.4ghz wifi connection
tried going back into hibernation but restores back to lower speed - same trying to suspend then resume. clicking power to it off then on sometimes will return it to 150Mbps - reboot will always return it to 150Mbps
$ lsusb
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 003 Device 003: ID 045e:028e Microsoft Corp. Xbox360 Controller
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 004: ID 0cf3:9271 Qualcomm Atheros Communications AR9271 802.11n
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
looks like USB 2.0
And CNET says for Gateway E-475M laptop: Four USB 2.0 ports, a mini-FireWire, and a multiformat memory card reader
the problem is the device itself, some will not cooperate with usb3, that is why i made that question
a 2.4ghz connection will not use half of the usb 2 bandwidth, usb 2 us 480mbps, 2.4ghz on a 150mbps conection in reality is like 40 or 50 mbs per second effectively
that is not 8 mbs from the maximum of 40 megabytes a usb 2 port can move, but is worth to try if it behaves better in a usb 3 port, the problem is that usb might make it work for moments or wont even detect it
The TP-Link TL-WN722N is a USB 2.0 device - the laptop port it has been using since 2022 is a USB 2.0 device… why keep going on and on about USB 3.0?
AS FAR AS BANDWIDTH goes when downloading, browsing, etc., I’ve got it coming thru my 1,000Mbps LAN, my 54 Mbps PCI wifi, and this 150Mbps USB wifi - been doing it for years this way in Ubuntu and Windows, and for the last few months Fedora (triple boot laptop using Ubuntu grub)
*Seems to be behaving itself for now, maybe the update that included one for " Qualcomm Atheros" wifi/bluetooth is making somewhat of a difference… we’ll keep watch => seems to still do it, but much less often :-\
Firefox seems to freak out when this happens, not always, but often ~ crashes, and will usually make Fedora unstable (log me out, kernel panic, etc.)
me, somebody mentioned it and i was clarifying things, the usb 3 port might not work well with a usb 2 device, that was it, you seem to be upset for that information.
…but appreciate the USB 3.0 info you provided for future reference.
I do often use USB 3.0 thumb drives in my laptop USB 2.0 ports (both windows and linux), and they do seem to transfer files faster than my older USB 2.0 thumb drives… Got really old windows 98 (1st ed) machine w/ single USB 1.0 port that won’t run the 3.0 thumb drives at all…
