Необходима интернет-поддержка Wi-Fi

Я новичок в Ubuntu. Через несколько минут после включения моего ноутбука Интернет будет работать, а затем он отключится. Он обычно остается подключенным в течение 5-15 минут, затем он отключится, и я не смогу подключиться, если не перезагружу ноутбук. Кто-то, пожалуйста, помогите !!!! Спасибо.

Я пробовал следовать инструкциям в ответе на этот вопрос: Как получить рабочую карту Ralink RT3290? Луис Альварадо, но это не сработало.

00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Complex [1022:1410]
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8550G] [1002:990d]
00:01.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Trinity HDMI Audio Controller [1002:9902]
00:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Port [1022:1414]
00:10.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller [1022:7814] (rev 09)
00:10.1 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller [1022:7814] (rev 09)
00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7804]
00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller [1022:7807] (rev 11)
00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller [1022:7808] (rev 11)
00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller [1022:7807] (rev 11)
00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller [1022:7808] (rev 11)
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:780b] (rev 16)
00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller [1022:780d] (rev 01)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:780e] (rev 11)
00:14.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge [1022:780f] (rev 40)
00:15.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0) [1022:43a0]
00:15.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 1) [1022:43a1]
00:15.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 3) [1022:43a3]
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 0 [1022:1400]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 1 [1022:1401]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 2 [1022:1402]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 3 [1022:1403]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 4 [1022:1404]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 5 [1022:1405]
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
04:00.0 Network controller [0280]: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe [1814:3290]
04:00.1 Bluetooth [0d11]: Ralink corp. RT3290 Bluetooth [1814:3298]
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)