Hello,
I recently bought the Intel 7260 AC wifi card (below is the PCI info)
and the card works perfectly in windows with the latest intel driver but
in linux I get deauthenticating and disconnects (reason -3) every minute
or so. When these disconnects happen I get packet loss. In the attached
file iwlwifi_dmesg.txt you can see the log that is produced each time a
disconnect happens. I also tried connecting on 2.4Ghz but I get the same
packet loss. I also put the last firmware from
http://git.kernel.org/?p=linux/kernel/git/firmware/linux-firmware.git
but it did not help.

There is also another problem: In windows i can see it connecting on
860mbps, but on linux it never goes higher than 600mbps (i check this
with iwconfig) and it stays somewhere on 500mbps.

Can you please help me solve this?
Thank you.

uname -a
Linux nick-laptop 3.19.0-18-generic #18-Ubuntu SMP Tue May 19 18:31:35
UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

lspci info:
03:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb)
        Subsystem: Intel Corporation Dual Band Wireless-AC 7260
        Flags: bus master, fast devsel, latency 0, IRQ 29
        Memory at f7200000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [40] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number d8-fc-93-ff-ff-e4-70-d7
        Capabilities: [14c] Latency Tolerance Reporting
        Capabilities: [154] Vendor Specific Information: ID=cafe Rev=1
Len=014 <?>
        Kernel driver in use: iwlwifi