Comment 96 for bug 272185

This doesn't seem like an issue of speed for me. The key difference in the log for me is

with NetworkManager:

Associated with 00:0f:34:79:53:01
CTRL-EVENT-EAP-STARTED EAP authentication started
CTRL-EVENT-EAP-METHOD EAP vendor 0 method 25 (PEAP) selected
EAP-PEAP: Failed to select forced PEAP version 1

without NetworkManager (manual config):
Associated with 00:0f:34:79:4e:31
CTRL-EVENT-EAP-STARTED EAP authentication started
CTRL-EVENT-EAP-METHOD EAP vendor 0 method 25 (PEAP) selected
OpenSSL: tls_connection_handshake - Failed to read possible Application Data error:00000000:lib(0):func(0):reason(0)
EAP-MSCHAPV2: Authentication succeeded
EAP-TLV: TLV Result - Success - EAP-TLV/Phase2 Completed
CTRL-EVENT-EAP-SUCCESS EAP authentication completed successfully
WPA: Key negotiation completed with 00:0f:34:79:4e:31 [PTK=CCMP GTK=CCMP]
CTRL-EVENT-CONNECTED - Connection to 00:0f:34:79:4e:31 completed (auth) [id=0 id_str=]