I have a Dell XPS 9333 with Ubuntu 15.04 and Intel wifi card (ac7260). The wifi-ac connection is slow and it disconnects after couple of minutes (it varies). After the disconnect I have to reboot in order to reconnect.
I have the latest firmware for the kernel: driverversion=3.19.0-18-generic firmware=25.17.12.0
Does anyone has any solution for linux and intel cards?
*I have also an external usb wifi from Edimax that doesn't have any issues – so only the laptop intel card has this issue.
radu@radu-XPS13-9333:~$ sudo lshw -C network
*-network
description: Wireless interface
product: Wireless 7260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 6b
serial: 5c:51:4f:7c:93:b3
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-18-generic firmware=25.17.12.0 ip=192.168.1.9 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
resources: irq:44 memory:f0400000-f0401fff
radu@radu-XPS13-9333:~$ lspci -nn
...
02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 6b)
Best Answer
Did you read in the bug report you linked?
First, check the settings in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly not TKIP. 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. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Also, be certain the router is not set to use N speeds only; auto B, G and N is preferred. After making these changes, reboot the router.
Next, I recommend that your regulatory domain be set explicitly. Check yours:[CODE]sudo iw reg get[/CODE]If you get 00, that is a one-size-maybe-fits-all setting. Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Then set it temporarily:
Of course, substitute your country code if not Iceland. Set it permanently:
Use nano or kate or leafpad if you don't have the text editor gedit.
Change the last line to read:
Proofread carefully, save and close the text editor.
Next, I'd set IPv6 to Ignore in Network Manager: http://docs.fedoraproject.org/en-US/Fedora/18/html/Installation_Guide/images/netconfig/network-connections-ipv6-ignore.png This example is for ethernet, but you want wireless.
Reboot and let us know the result.