have you tried to use this card in a Windows* environment to see if the same thing happens?
Regarding support for Linux* O.S. you can get assistance in the Linux Forums.
the last page of this very long discussion has suggestions on improving the performance of the 7260 card.
I too had a lot of problems with this card on two laptops. On one I ended up replacing the card with an older Intel wifi/bluetooth combo because it was cheap and easy - Dell laptop, no BIOS wifi lock-down. On the second, a Lenovo with the BIOS white-list lock-down, I eventually got a new WiFi card out of them which seems to be better. My suspicion is there as been a bad batch of the cards.
Thanks for responding. i dont have access windows installable and i do not intend to spend on that.
i have tried Ubuntu 14.04, 14.10 , 15.04beta Mint 17 and 17.1 and even the latest fedora 22 alpha with kernel 4.0 and no luck. In fact over last few days it has become impossible to even open a single Internet page using this card in my NUC. it takes forever to load a page. Sorry i am wrong. It never loads.:(
Looking at other email thread it is hard to believe that intel has not been able to fix the problem for almost 2 years. In my case i am starting to believe it is bad card and plan to return it.
If intel is aware of any problem with a batch of hardware they should have recalled it.
If it is a driver / firmware issue it is shame for intel not being able to fix it.
God know how many users have been tortuted and before they finally ripping the 7260 card and throwing it.
I have tried various things from that forum. None worked. Is there any way to confirm if it is hardware problem. What is the warranty period of this card? Mine should be about 6 months old. Unfortunately the NUC i bought with this card was rarely for first few months. When i started using it first the NUC died which is replaced. Now the wireless card 7260 is not working. I am losing faith in intel products (hardware and software)
Update on the situation:
I contacted the PoP. They told me that intel refused to replace the card instead advised to use windows. They had taken this mail thread as a reference to contact intel but it did not help. The PoP instead gave me a replacement from their sales distributor as special case. The replaced card does actually works fine. This proves that the earlier card was faulty and intel refusing to replace it extremely annoying. Note that this was within warranty period.
We would like to inform you that Intel does not sell wireless adapters to end users. They are sold only for computer manufacturers and OEMs and this is the reason that any replacement can only be done by the manufacturer and/or authorized OEM technicians. You can also check with the NUC furum: Intel® NUC for assistance to check if there is any updates for the BIOS that can also help fixing this issue.