On a system76 laptop, running Ubuntu 18.04.01 LTS
Wireless has been working fine for a while, but now has slowed to a halt.
Network is fine and working for my iPhone. Am currently using USB (Ethernet) hotspot to try to research and post this question.
Have tried what I know without help:
sudo service network-manager restart
- restarting laptop
- restarting router and wifi
I don't really know what to do at this point, so any and all help would be appreciated.
Here's some additional info from system commands that seemed useful for debugging these sorts of issues. Please let me know if any other info is useful.
sudo lshw -C network
*-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0.1 bus info: pci@0000:02:00.1 logical name: enp2s0f1 version: 12 serial: 80:fa:5b:53:54:5e size: 10Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8411-2_0.0.1 07/08/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:16 ioport:e000(size=256) memory:df214000-df214fff memory:df210000-df213fff *-network description: Wireless interface product: Wireless 8265 / 8275 vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: wlp3s0 version: 78 serial: 74:e5:f9:44:be:1b width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-36-generic firmware=34.0.1 ip=192.168.1.202 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:135 memory:df100000-df101fff *-network description: Ethernet interface physical id: 1 bus info: usb@1:11 logical name: eth0 serial: 42:4d:7f:ee:ba:40 capabilities: ethernet physical configuration: broadcast=yes driver=ipheth ip=172.20.10.4 link=yes multicast=yes```
dmesg | grep iwlwifi
[ 3.690319] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002) [ 3.695795] iwlwifi 0000:03:00.0: loaded firmware version 34.0.1 op_mode iwlmvm [ 3.724214] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230 [ 3.780293] iwlwifi 0000:03:00.0: base HW address: 74:e5:f9:44:be:1b [ 3.858610] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0