Intel N 6235 H/W Issue: dropouts (twice p/hour, frequent slow speed, from 130 or 78mpbs to 5.5 or 1.1 mbps, random signal strenght, from excellent to regular in same position.
standard 802.11n
Intel Software (driver/firmware) Intel Proset wireless driver 15.7.0.3
(all Intel recommendations for the device applied)
Laptop/PC Manufacturer Samsung Series 5 NP530U3C windows 7
Router (Chipset/Firmware) TP Link 8960N firmware 1.4.0 Build 111108 Rel.40398n (channel set at 1-5 from inSSider suggestion)
ISP provider Telecom (Argentina)