Whatever is happening, your wireless system is dropping the connection as shown by
[126573.115713] wlan0: disassociating from 00:1f:33:d2:a6:f8 by local choice (Reason: 3=DEAUTH_LEAVING) Please check your NetworkManager and wpa_supplicant logs to see if they offer any clues. What is the encryption of your AP? I suspect it must be WPA1 given [126562.844210] r8192ee 0000:03:00.0 wlan0: disabling HT/VHT due to WEP/TKIP use -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1239578 Title: No wireless support for Realtek RTL8192EE [10ec:818b] Status in HWE Next Project: Confirmed Status in HWE Next trusty series: Confirmed Status in “linux” package in Ubuntu: Confirmed Bug description: Open this bug to trace device driver RTL8192EE. We have seen this wireless card on some laptops, id is [10ec:818b], driver is RTL8192EE. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1239578/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp