It could be a one-off problem or distro not supporting that specific wifi-card issue, Did you try any other distro, like Fedora or Manjaro? If not maybe try with a Live USB and see if the problem persists. But if you are already an experienced Linux person then probably you tried all the patch/fix available
It could be hardware issue as well, check with another OS (Windows or Fedora to be sure). Is your laptop still under warranty? if not may be you can replace the wifi-card, they are fairly easy to replace on most laptops and should be cheap I think
Isn't Dell or Lenovo laptops available in Thailand? Ubuntu or Fedora works perfcetly fine with most of Dell/Lenovo/Asus laptops.
For example Ubuntu officially supports all these hardware: certification.ubuntu.com/desktop
You can find the full hardware support list here as well linuxjournal.com/supportedhardware
I have a Lenovo laptop, and Xubuntu, and WiFi problems.
It could be a one-off problem or distro not supporting that specific wifi-card issue, Did you try any other distro, like Fedora or Manjaro? If not maybe try with a Live USB and see if the problem persists. But if you are already an experienced Linux person then probably you tried all the patch/fix available
While it does support, installing must be done manually.
However, the WiFi sometimes dies unexpectedly, at unexpected time. My guess is the heat, but I can't be sure; and there is no-one to help...
It could be hardware issue as well, check with another OS (Windows or Fedora to be sure). Is your laptop still under warranty? if not may be you can replace the wifi-card, they are fairly easy to replace on most laptops and should be cheap I think
Any brand / model to recommend? I can easily buy online, then ask someone offline to replace it; although there may be shipping costs.
My personal favorite is the Dell XPS line. I have a Precision (same as XPS 15)
They even have developer editions that come with Ubuntu OOB
The manjarocomputer.eu stuff also seems good and they ship worldwide
Also HP hardware works perfect for me.. ;)