Thank you so much for your incredible help.
On this Asus X552C and Network controller: MEDIATEK Corp. MT7630e
802.11bgn Wireless Network Adapter the #125 and #154 solved the problem.
But...
I'm noticing a strange and continuos spike in the CPU activity:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21 root 20 0 0 0 0 R 100.0 0.0 16:10.98 ksoftirqd/1
'/1' depends on the CPU used obviously.
If I disable the WiFi connection, everything comes back to normal.
I hope this can be useful... any suggestion?
Linux linuxbox 3.13.0-34-generic #60-Ubuntu SMP Wed Aug 13 15:45:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1220146
Title:
Need support for new Ralink Wifi card - Mediatek 7630 [14c3:7630]
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