After the upgrade to Ubuntu 14.10, my wireless connection has become unstable.
In every 2 to 3 minutes the network stops working (i.e., I am unable to load any page), even though the Network Manager, shows that I am connected.
So I have to manually disconnect it and connect it again,to make it work again, but then again it only works for another 2-3 minutes.
I'm using a Dell Inspiron 7357, with a Intel Corporation Wireless 7260 (rev 73)
card. With Ubuntu 14.04, the adapter worked perfectly.
I don't see neither crashes nor errors in dmesg
:
$ dmesg | grep iw
[ 3.636727] iwlwifi 0000:02:00.0: irq 62 for MSI/MSI-X
[ 3.709654] iwlwifi 0000:02:00.0: loaded firmware version 25.222.9.0 op_mode iwlmvm
[ 3.742636] iwlwifi 0000:02:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
[ 3.743790] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 3.744023] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 3.940407] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 4.863737] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
[ 4.863967] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S
Of course, I don't have any problem if I select the old 3.13 kernel in Grub (in that case, the firmware version is the .8). Do you have any ideas?