TL-WN725N wifi issues

[archarmnoob]

$this->bbcode_second_pass_code('', '# uname -a
Linux alarmpi 3.12.26-1-ARCH #1 PREEMPT Fri Aug 8 17:40:14 MDT 2014 armv61 GNU/Linux
# lsusb
Bus 001 Device 005: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
...
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. SMC9512/9514 USB Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub')

When I setup the wifi, I only plugged in the usb adapter to the raspberry pi and it kind of just worked. Refreshing. The network was setup using wifi-menu and the netctl config it generated. But I have two issues and I wonder if it is driver related or something else?

1. Automounting network shares
In /etc/fstab I had:
$this->bbcode_second_pass_code('', '//192.168.0.1/networkshare/ /mnt/share cifs noauto,x-systemd.automount,credentials=/home/cred 0 0')
This worked with a wired connection, but on wifi mounting a Windows network share on boot failed if I did not change the authentication to ntlm (ntlmssp works as well). I understand the default to be ntlmv2. The network share is on Windows 7. Why would changing from wired to wifi require a change in authentication mode?

2. Local wifi speeds
TL-WN725N v2 is a 150Mbps Wireless N adapter. My router is a TP-Link WR1043. It's set at 11bgn mixed mode. I am only getting a little over 5 Megabytes per second between it and wired pc on the network w/ gigabit NIC. This is with the pi sitting right next to the router.

[moonman]

1. Network may not be up in time
2. Sounds about right. 5 * 8 = 40; 40 * 2 (wifi is half duplex) = 80 connection rate. It is not using 40 mhz channel width it seems which is common on 2.4 because of interference (or it might be switching back and forth so you get a little over the standard 72.) It is pretty difficult to get 40mgz going unless you live in an interference free area. If you want better throughput get 2xMIMO device (e.g. N300), it will do 150 with 20mhz channel width or switch to 5ghz band. 5ghz spectrum is not as crowded with more channels available, although range is lower because of higher frequency.