I’d suspected the wifi as well when first using Debian on a pair of 410c’s. An Upgrade of ( actually a move from the NetGear firmware to dd-wrt v24-sp2 ) the firmware on the NetGear WNDR4500 AP/router ‘solved’ it. Previously, the 410c’s would connect to the AP and intermittently drop off and reconnect. Sustained Ping’s would lose 50% or more of the packets. Post AP upgrade, Ping’s are successful ( 95%+ success ) and throughput significantly better ( 54Mb ). Wifi issues are behind me, just need to tune the MythTV Frontend since Video/DVR streaming over wifi is sometimes a challenge.
Also, of note, none of the PC’s, Mac’s, or Cell Phones on the AP exhibited the intermittent drop off’s like the 410c’s. Dd-wrt has provided a huge performance and functionality improvement for the wifi. Suspected that the 410c is a bit more ‘finicky’ about the wifi, had seen other posts about it scanning frequently and how disabling bluetooth helped…
linaro@dragonboard02:/etc$ cat os-release
PRETTY_NAME="Debian GNU/Linux 8 (jessie)"