I gave up an bought an INTEL Dual Band Wireless-AC 7260 (27 EUR) for my HP Probook 430 G1.
Works ootb on Win 8.1 and Linux Mint 17 AND I have 5 Ghz and 802.11ac now (bitrates up to 866 Mbit/s.)
I gave up an bought an INTEL Dual Band Wireless-AC 7260 (27 EUR) for my HP Probook 430 G1.
Works ootb on Win 8.1 and Linux Mint 17 AND I have 5 Ghz and 802.11ac now (bitrates up to 866 Mbit/s.)