I have the following issue with an Intel 9260 wifi card. The moment I send (larger) files into the LAN (for example samba or Windows 10 network share), the copy process of Windows explorer (with a high chance, does not happen every time, but with a very high chance):
- goes to 0kb/s then jumps up again after some time or
- Windows gives an internal network error (Wifi driver seems to crash)
While this happens, and having a permanent ping open next to the copy, the moment the copy breaks down, the Acces Point isn't reachable anymore:
![Z8S4OaD.png]()
The images show, that after 1-2 seconds of the copy process, the copy rate drops to 0, in this moment the access point isn't reachable anymore via ping. If I'm lucky, like in this picture, after a short period of time, it goes slowly up again. But I also had it happen too now very often, that the ping breaks down into "internal network error" and the copy process is abrupted. The wifi driver mostly crashes at this moment, and Windows tries to reload the driver.
I tried two access points, and it happens on both of them, so the issues seem to lay in the Intel card or its drivers. I am using the latest available drivers for the 9260 card and Windows 10 64bit, version 20.60.0.
Receiving files work without an issue, from the LAN to the 9260 card. This issue just happens, when I send away files from the laptop, into the LAN.
The connection is 866Mbit (2x80Mhz). I tried two separate access points, both show the same behavior.
Edit:
I just noticed that I can randomly crash the Access Point by this (after some tries, copying a large file over the LAN, the access point would restart randomly)
![d77mbIh.png]()
I can see this behavior on two different routers/access points. One is a Linksys WRT1200, another a totally different model and brand by a totally different manufacturer.