Hello,
I have issue with Intel(R) Dual Band Wireless-AC 8260 on my notebook Thinkpad P40 Yoga
OS Windows 10 x64 pro
Speed in Wifi Status window shows 3 bars only and speed drops very often from 108 MB/s to 1 MB/s, therefore LAN speed and internet are very slow, around 900 KB/s download and 35 KB/s upload.
I read lots of threads and i tried many possible solutions but nothing helps, my router EDIMAX BR-6428nS V3
I tried also different channels 1,11, security setting: WPA2 (AES)
Also connecting to wifi router takes quite long. My other devices eg. phone works fine, so i think router is OK.
My temporary fix:
It is very weird, but when i bring my notebook very close to my router for 5 seconds, speed become stable 150 MB/s sometimes 180 MB/s, then i can go to another room and speed remains stable with green 4 bars always..., but when i restart pc, or go to sleep mode, or disconnect from wifi, speed become unstable again. Then i must again go very close to my wifi antenna for few seconds and so on...