No networking after suspend and resume

I started having problems with suspend and resume after upgrading to kernel 3.13.0-37. Resume takes a long time, suspend sometimes takes me to the log in screen and I have no networking after resuming (I need to restart Network Manager). I am running Ubuntu 14.04 (64 bit) on a DELL XPS 13 (full HD, Intel GPU) notebook. Everything works fine with kernel 3.13.0-36.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
Date: Tue Oct 14 09:19:50 2014
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2014-04-27 (170 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
IpRoute:
 default via 192.168.25.1 dev wlan0 proto static
 192.168.25.0/24 dev wlan0 proto kernel scope link src 192.168.25.2 metric 9
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 CC:07:AB:0D:ED:A4 bluetooth disconnected /org/freedesktop/NetworkManager/Devices/3
 9C:65:B0:BF:D2:55 bluetooth disconnected /org/freedesktop/NetworkManager/Devices/2
 30:19:66:26:90:06 bluetooth disconnected /org/freedesktop/NetworkManager/Devices/1
 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled enabled enabled enabled disabled