I am having the same issue. I received my Nano on Thursday last, upgraded to 2.6 and found the unit unstable (recon, not completing. ssh session laggy). Down graded to nano-factory.bin Factory Recover image then re-upgraded to 2.5.0 > 2.5.4 and found the system to be really unstable/unresponsive. Down graded again to Factory Recovery image > 2.6 better stability but, PineAP process won't run, USB WiFi wlan2 un-recognized and I am unable to successfully run wp6.sh as the script endlessly searches for the WiFi Pineapple. Is there a support site that I can open a ticket to get my specific issues resolved? Aside from completing a Factory Reset / Factory Recovery what else can I do to fully clear the Nano and start from scratch - so to speak?