Wireless connection has been if-fy on a Minisforum UM700 (Arch). One minute fast.com reports 100Mbps download speeds and a few minutes later we are unable to ping 126.96.36.199. Various other devices, mostly Apple, on the WiFi network are working fine.
To troubleshoot I want to compare connectivity on booting from a USB drive with Endeavouros_Cassini_Nova-03-2023_R2 with a normal boot. I also want to compare connectivity using a ALFA AWUS036AXM WiFi 6E 3000 mbps Tri Band 2.4/5/6 GHz WiFi USB Adapter × 1, while booting from both the EOS USB and the UM700 SSD.
This amounts to four scenarios, which I am hoping will give me some insight into the problem, especially on whether it is software or hardware related.
The problem is, how to make sure whether it is the WiFi USB adapter or the UM700’s internal wireless card that is being used for connectivity when the USB adapter is inserted. To be honest, it’s my first experience with a WiFi USB Adapter. I chose the AWUS036AXM because it is reported to work with (newer kernel) Linux out of the box..
“ip link” seems to detect both WiFi devices:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000 link/ether 1c:83:41:30:ef:12 brd ff:ff:ff:ff:ff:ff 3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000 link/ether 44:af:28:7b:12:f9 brd ff:ff:ff:ff:ff:ff 4: wlp4s0f4u1i3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DORMANT group default qlen 1000 link/ether f6:02:ba:de:3d:67 brd ff:ff:ff:ff:ff:ff permaddr 00:c0:ca:b5:58:cf
However, neither “inxi -N”
Network: Device-1: Intel Wireless 7265 driver: iwlwifi Device-2: Intel Ethernet I225-V driver: igc
lspci -v | grep -A 10 -i "Network Controller" 02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59) Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [Stone Peak 2 AC]
show anything about the AWUS036AXM, which I assume is wlp4s0f4u1i3. “ip link” is reporting the wlp4s0f4u1i3 as UP, but with NO-CARRIER, which I am guessing means it cannot find an SSID.
The first thing I’d like to do is enable the WiFi USB device. “sudo ip link set wlp2s0 down” certainly disconnects the UM700’s internal wireless but “sudo ip link set wlp4s0f4u1i3 up” just results in the NO-CARRIER issue.
Anyone familiar with how to proceed here?