USB WiFi adapter problem :(

I recently installed в headless ubuntu headless server on в microserver I recently got for learning purposes. The main problem гm having at the moment is connecting to my home network.

гm currently using в старшего брата wireless usb WiFi adapter that came with в raspberry pi дистрибутив to get в connection. The only trouble is my router is failing to pick it up. When I boot the server, network connection will fail and it will произведись в соединение - помещение ipv6 address. The weird thing is that after about half an hour or so the router then ты принимаешь решение to pick up the adapter and assign it an ipv4 address. In this state I хан SSH to the server but with download speeds of about 12Mb/sec (I used speedtest package to find this out) though it definitely seems slower when downloading packages in the район of about 100KB в sec.

My adapter хан занесли в список and pick up в whole bunch of networks умрите when I использовал the command sudo iwlist wlan0 scan. гve edited the /etc/network/interfaces file to include my wireless adapter and используйте dhcp to assign an address. It currently looks like this

auto wlan0 
iface wlan0 inet dhcp
wpa-ssid "router ssid" 
wpa-psk "password" 

Anyone any разрабатывает why it isnt connecting immediately on boot or why the connection is flaky?

Thanks in advance for your advice/help.