I have a dell inspiron 15 that has been using manjaro for years now.
Suddenly this morning I cannot connect to the internet in any meaningful way. The network states it is connected, but when I try to load any site, or connect to any manjaro server I get very very slow speeds of max something like 394 bytes. I have tried turning of the VPN, turning off the firewall (gufw) connecting to a different wireless connection, connecting via the hard line, rolling back the kernal; all which do not work. My desktop (also with manjaro) is connecting just fine. Also other devices (TV, Phones) are having no problems so I dont think it is a router or modem issue.
Here are some specs that might help. This problem did begin shortly after I applied the last update, but I rebooted and used my laptop successfully for hours after the update.
Kernel: 5.12.19-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
root=UUID=8bc10772-28eb-4ff4-ba50-20b15368bb52 rw quiet apparmor=1 security=apparmor
Desktop: KDE Plasma 5.22.4 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM Distro: Manjaro Linux
base: Arch Linux
Network: Device-1: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell driver: r8169 v: kernel
port: 3000 bus-ID: 01:00.0 chip-ID: 10ec:8136 class-ID: 0200
IF: enp1s0 state: down mac: ec:f4:bb:7b:af:3a
Device-2: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter vendor: Dell
driver: ath9k v: kernel port: 3000 bus-ID: 02:00.0 chip-ID: 168c:0036 class-ID: 0280
IF: wlp2s0 state: up mac: 54:35:30:99:16:b5
IP v4: 192.168.2.7/24 type: dynamic noprefixroute scope: global broadcast: 192.168.2.255
IP v6: fe80::4afe:d789:d76d:f89d/64 type: noprefixroute scope: link
IF-ID-1: tun0 state: unknown speed: 10 Mbps duplex: full mac: N/A
IP v4: 10.32.70.41/24 scope: global
IP v6: fde6:7a:7d20:1c46::1027/64 scope: global
IP v6: fe80::7da2:6d95:8c2e:ea39/64 virtual: stable-privacy scope: link
WAN IP: 18.104.22.168
Any help or ideas I could try for further troubleshoooting would be greatly appreciated!