Of course, substitute your country code if not Iceland. Find yours here: Then set it temporarily: sudo iw reg set IS If you get 00, that is a one-size-maybe-fits-all setting.
Next, I recommend that your regulatory domain be set explicitly. If this is the case, I suggest that you rename the access points something like myrouter2.4 and myrouter5.Īfter making these changes, reboot the router. Your wireless may be roaming, looking for a better connection. This is typical when you have a 2.4 gHz segment and a 5 gHz segment of the same router.
Your wireless may be dropping because there are two wireless access points with the same name and password. Also, be certain the router is not set to use N speeds only auto B, G and N is preferred. I recommend a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Second, if your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz, although it is likely to affect N speeds. WPA2-AES is preferred not any WPA and WPA2 mixed mode and certainly not TKIP. Your wireless may be dropping because the channel to which it was connected has suddenly changed. From the terminal: sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/* Let's disable pwer saving to see if it helps. Your wireless may be dropping because of power management that is, the feature where the card partially powers down to save battery power during periods of inactivity and then, ideally, powers back up seamlessly when activity resumes. I suspect that your wireless is working, albeit disconnecting all too frequently.
Sudo apt install -reinstall linux-firmware Your wireless device shows as UNCLAIMED because, although the correct driver loads, it is no longer able to find the correct firmware file. With Wireless dongle, the internet works fine. Unfortunately my laptop which I have currently installed Ubuntu and caught with this issue has no Ethernet and using a WiFi dongle to use internet on my device. Here it states as UNCLAIMED, which I tried to figure online for the solution but found nothing. The terminal command for sudo lshw -C network showed this result. I also tried by downgrading to 19.04, 18.14 and 18.04 version of Ubuntu Distro but the problem remains the same. I thought there might be a driver file inside /lib/firmware that OS recognized as its appropriate driver instead of adapting the right one (i.e in my case the device driver for Dual band 7260 states as iwlwifi-7260-16) so I deleted all the related iwlwifi-* (* indicates all files with prefix iwlwifi-) and only installed the driver file 'iwlwifi-7260-16.ucode' in /lib/firmware but it also didn't help but this time, the WiFi was totally disappeared. I got the driver from Intel's Support website for Linux, I downloaded, extracted into /lib/firmware, restarted system but nothing changed.
I tried to find the solution over internet for doing it manually as there are no option available like Driver Manager in Windows or Mac that can find the precise driver for the specific hardware component interface.
I even tried to figure out if their could be a driver update available at 'Additional Drivers' but except NVIDIA's MX150 driver package nothing was there. I thought installing might resolve the problem but it stayed the same even after installing the OS to the drive partition. I installed Ubuntu v20.04 on my Dell Inspiron 7586 that has come with Intel Dual-Band Wireless 7260 Adapter but when I use the OS as 'Try Ubuntu' everything was working fine except the WiFi which was repeatedly enabling and disabling recursively.