The more I use computer without restart, the more problems appears with wireless connection.
Currently I have installed fresh Ubuntu 19.10, and after restarting Ubuntu - wireless connections becomes lightning fast, however after some time the page loading becomes unbearably slow, stucking while loading videos making me wait for small segments to load for seconds to minutes. It is same about anything on Ubuntu that uses internet connection. The Crippling disappearance of Wifi that should not happen also prevalent sometimes.
I try to reconnect to the wireless router by turning off and on WIFI on the computer. Does not help, everything still loads slowly.
What does help: restarting the Computer/Ubuntu completely.
Sometimes, it seems that the longer I use the computer, the more annoyance appears with the Wifi. And it is kind of random, at what point wireless connection will annoy me and forces me to restart the computer.
lspci output
vaidas@vaidas-SATELLITE-L855:~$ lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM76 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Turks HDMI Audio [Radeon HD 6500/6600 / 6700M Series]
07:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10)
08:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network Adapter (rev 01)