what is the situation need to recreate a AsyncClient

[RonaldinhoL]

i create a AsyncClient on my app init and keep it until my app exit. it this right?

i got many network error, but i dont't know if i need to recreate a client.

such as:

• RuntimeError('Cannot send a request, as the client has been closed.')
  the most
• ReadTimeout('')
• ProxyError('')
• ProxyError('401 Unauthorized')
• ProxyError('403 Forbidden')
• WriteError('Connection lost')
• WriteError('[SSL: SSLV3_ALERT_BAD_RECORD_MAC] sslv3 alert bad record mac (_ssl.c:2627)')
• WriteError('[WinError 64] 指定的网络名不再可用。')
  The specified network name is no longer available
• WriteError('[WinError 121] 信号灯超时时间已到')
  The timeout period of the signal lamp has expired

seems ProxyError 401 / 403 need to recreate a client with new proxy, but the others i don't know how to do

help!