Hi Seth and Christopher! The big news is that wifi became "usable" after I did the update - thanks a lot!!! - but it still doesn't seem to work like it should - see below. I also tried the router settings - see below.
Prior to the update I could barely connect to the router, and download very small web pages at best. Now I can download a relatively large (about 10 Mb) news site in about 10-15 s, and I'm also able to run speedtest (www.speedtest.net) with download speeds 1.6-3.1 Mbit/s and upload speeds 4.1-5.8 Mbit/s. It's strange that download speed is smaller than upload speed. Also, upload speeds are stable during the upload, download speeds have occasional high jumps up, and then gradually decrease to a relatively slow level. To compare: if I use my phone as a wifi adapter (share wifi via usb) I get 18Mbit/s download and 6Mbit/s upload. So there is definitely something wrong with my laptop's download speed. Finally, If I go close to the router, about 2-3 meters, (and use the laptop's own wifi), then download is 24 Mbit/s and upload is 6 Mbit/s. My router is revision A1, and if I set it to b/g mixed (I don't have g only), beacon=50, then I get about 0.5 Mbit/s download and 3.5 Mbit/s upload speeds, download speeds seem more stable, and interestingly, the above news site loads a lot faster (2-3s) - I tried this many times. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1335475 Title: 8086:08b1 (rev 73) [Dell Vostro 5470] WiFi keeps dropping Status in linux package in Ubuntu: Incomplete Bug description: Wifi only works if I'm within 2-3 m from the router. Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73) Subsystem: Intel Corporation Wireless-N 7260 [8086:4462] ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-30-generic 3.13.0-30.54 ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2 Uname: Linux 3.13.0-30-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: zoltan 1528 F.... pulseaudio /dev/snd/controlC1: zoltan 1528 F.... pulseaudio CurrentDesktop: Unity Date: Sat Jun 28 20:20:25 2014 HibernationDevice: RESUME=UUID=37e4a4dd-23aa-4f64-9819-ad9ac81ce00a InstallationDate: Installed on 2014-05-17 (42 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Vostro 5470 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=4113e76e-862f-4e4e-88c5-ccb82732ef5a ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-30-generic N/A linux-backports-modules-3.13.0-30-generic N/A linux-firmware 1.127.4 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/06/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0G5M5F dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA05:bd12/06/2013:svnDellInc.:pnVostro5470:pvr:rvnDellInc.:rn0G5M5F:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Vostro 5470 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1335475/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp