Return-path: Received: from bay004-omc2s17.hotmail.com ([65.54.190.92]:57780 "EHLO BAY004-OMC2S17.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751114AbaG2H2E convert rfc822-to-8bit (ORCPT ); Tue, 29 Jul 2014 03:28:04 -0400 Message-ID: (sfid-20140729_092818_693088_08D85386) From: Borislav Boev To: "linux-wireless@vger.kernel.org" Subject: Poor wifi performance on Intel 7260 Dual-Band AC Wifi card Date: Tue, 29 Jul 2014 10:28:03 +0300 Content-Type: text/plain; charset=US-ASCII MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hello, I am reporting this bug, though it is well known for years. In general I've experienced poor wifi performance with all Intel cards, starting from 3945abg, 4965agn and now Intel 7260 Dual-Band AC. The old cards were on a ThinkPad T61 system, 7260 is on a brand new ThinkPad Edge E540. So here's the problem: Wireless conection is slow, there's a unusual ping while browsing web pages (tried with all browsers - no luck), and sometimes drop-outs in connection. There's a partial fix by disabling Wireless "N" mode, but this is irrational, because it limits the network to only 54mbits speed. Details about the system: Hardware: ThinkPad E540 CPU: Intel core i5-4200m (Haswell) Wireless adapter: Intel 7260 Dual-Band AC Software: PCLinuxOS 2014.07 Kernel: 3.15.5 (though it was the same with old kernels) Kernel module: iwlwifi