So I tried all three of those sysctl's and the problem is still manifesting itself (every 10 minutes, Network Mananger pops up a disconnected/reconnected message.
Moreover, I'll not that this problem does NOT exist in 14.04 (tested with the same hardware, same wifi+ethernet, using a 14.04.5 LiveISO, which uses the Xenial kernel (very close to the kernel I'm running here on 16.04). I really believe this problem is likely in Network Manager itself. I'm reopening that task for now. ** Changed in: network-manager (Ubuntu) Status: Invalid => New ** Changed in: network-manager (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to maas in Ubuntu. https://bugs.launchpad.net/bugs/1664748 Title: wifi connection drops, reconnects every 10 minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/maas/+bug/1664748/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs