It is difficult to suggest many things with this chip -
..except maybe try changing the channel to 1 or 11 (11 seems less crowded) or disabling N channel in the router. But maybe we should wait till the next report when it disconnects.
Bus 001 Device 005: ID 0bda:8172 Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter
What is the average speed that you get with this adapter? Like a guess about local file transfer speeds, or for internet you can use speedtest.net. Your current "shake hand" speed with the router is 150 Mb/s. Disabling N-channel will cause it to drop it to 54 Mb/s or less. But in practical usage, it may *sometimes* improve both the speed and connection stability when the N channel is causing troubles. It can only be tested, not guessed.
And please post back the output of -
Be sure to remove or obscure any sensitive data (like your security password) in the output before posting here.
sudo cat "/etc/NetworkManager/system-connections/NETGEAR 1"