try the full discharge thing that someone mentioned. your 7260ac? wifi card should be pretty well supported on Linux though, I've never seen something like this
this post was submitted on 11 Oct 2025
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the answers over there are wild... got no experience with windows in the last decade, but how's that a thing, what the wifi has nvram or something so it has to be power-starved? why would it have that? never heard of it, can anybody shed some light?
sorry OP can't help, that shoulda been the plugandplayest thing out there - intel wifi in a thinkpad.
So just in case this is helpful I have an x13 but when I was installing any version (tried a few) I had to use a single-band network (5ghz only in this case, had it for other reasons already) because the installer would just never report it was connected to the network even though it was, I had assumed it was that my multi-band network also included 6ghz. Either way though, this seemed to be only an issue for the installer and when it booted up after install I could use the multi-band network just fine. It currently has 24.04 on it and it is fine.
I faced a similar problem when converting my wife's laptop from Windows 10 to Endeavour OS. The issue was related to Windows hibernation. It seems that that process does some strange stuff to hardware, especially to wifi adapters.
To solve it I had to boot back to Windows, disable fast boot, reboot again, shutdown, and then I could install Linux properly.
Maybe you face a different issue, but I hope this helps.
This, the only way to fix it is to unplug it, take out the battery and leave it for hours.
Or, if you still have windows installed, you have to literally go into the power profiles and customize the wireless power down settings and then power it down. Upon booting to Linux it should all work.
I unplugged battery and power for 48 hours, but the problem unfortunately persists...
I guess I'll try to see if I can reinstall W10. Problem is I only have a W8 key (in had upgraded from W8 a while ago) so I'm not sure I'll be able to.
I had this once, I had to boot to Windows and mess with some power setting in the network card driver properties dialog. Windows was holding the power hostage somehow
Thank you for your answer! :)
I've completly wiped/installed W10. So I need to reinstall W10 to trey to solve the issue, then install Ubuntu again?
In that case maybe not, there maybe a Linux forum solution that is simpler
Disable secure boot, and enable the restricted repos, then do an apt update and see what's left to be installed. Make sure the iwlwifi package is installed.