Debian 8. How to fix wi-fi issue?

Question

linux

Hello.
Decided to switch to Linux. I chose Debian 8 as a distribution kit. But I ran into a problem: after 15-30 minutes of using wi-fi, Internet access disappears. Restarting the wi-fi adapter helps to solve the problem. The system is installed on an MSI GE70 2PL Apache laptop, wi-fi adapter Realtek RTL8723BE. I tried to use a static IP instead of DHCP, the problem was not solved. Also, instead of network manage, I installed wicd, but things are still there.

ifconfig:
eth0 Link encap:Ethernet HWaddr 44:8a:5b:ed:54:1f
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors: 0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:19
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0 .0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1579 errors:0 dropped:0 overruns:0 frame:0
TX packets:1579 errors:0 dropped:0 overruns: 0 carrier:0
collisions:0 txqueuelen:0
RX bytes:54828 (53.5 KiB) TX bytes:54828 (53.5 KiB)
wlan0 Link encap:Ethernet HWaddr 40:e2:30:04:9c:6f
inet addr:192.168.1.37 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::42e2:30ff:fe04:9c6f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:357394 errors:0 dropped:70 overruns:0 frame:0
TX packets:292591 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:341645179 (325.8 MiB) TX bytes:110654258 (105.5 MiB)
lspci:
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller : Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5 )
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port # 4 (rev d5)
00:1c.5 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #6 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller ( rev 05)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 850M] (rev a2)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5249 PCI Express Card Reader (rev 01)
04:00.0 Ethernet controller: Qualcomm Atheros Killer E220x Gigabit Ethernet Controller (rev 13)
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter

Answer 1

Try to do as they say here

Answer 2

Found a solution on the forum at the link. Thank you!