The network issue is related to the 6.0 distro, at least in my case. It is related to the wifi - LAN interaction.
I've did exactly these steps:
1) downloaded the piCore-6.0beta2-X.zip file, extracted and uploaded it to SD card
2) booted the Rpi and expanded the mmcblk0p2 partition via fdisk + resize2fs
3) tested the network with the LAN connection and it works well.
4) installed wifi.tcz, mc.tcz and firmware-rtlwifi.tcz via the apps manager
5) disconnected the LAN cable and rebooted
6) After startup, inserted the wifi dongle and USB Flash to store the test results
7) connected to the AP via the wifi utility
dmesg as follows:
[ 522.186600] usb 1-1.3.1: new high-speed USB device number 7 using dwc_otg
[ 522.288289] usb 1-1.3.1: New USB device found, idVendor=0bda, idProduct=8176
[ 522.288319] usb 1-1.3.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 522.288336] usb 1-1.3.1: Product: 802.11n WLAN Adapter
[ 522.288354] usb 1-1.3.1: Manufacturer: Realtek
[ 522.288369] usb 1-1.3.1: SerialNumber: 00e04c000001
[ 522.404370] cfg80211: Calling CRDA to update world regulatory domain
[ 522.640605] rtl8192cu: Chip version 0x10
[ 522.782527] rtl8192cu: MAC address: 00:e0:4c:0b:6f:67
[ 522.782577] rtl8192cu: Board Type 0
[ 522.782838] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
[ 522.783012] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 522.791978] usbcore: registered new interface driver rtl8192cu
[ 522.811741] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 522.816587] rtlwifi: wireless switch is on
[ 531.406625] usb 1-1.3.3: new high-speed USB device number 8 using dwc_otg
[ 531.512058] usb 1-1.3.3: New USB device found, idVendor=125f, idProduct=dc1a
[ 531.512087] usb 1-1.3.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 531.512107] usb 1-1.3.3: Product: ADATA USB Flash Drive
[ 531.512123] usb 1-1.3.3: Manufacturer: ADATA
[ 531.512137] usb 1-1.3.3: SerialNumber: 149032124213001B
[ 531.517930] usb-storage 1-1.3.3:1.0: USB Mass Storage device detected
[ 531.522418] scsi host0: usb-storage 1-1.3.3:1.0
[ 532.691300] scsi 0:0:0:0: Direct-Access ADATA USB Flash Drive 1100 PQ: 0 ANSI: 6
[ 532.695228] sd 0:0:0:0: [sda] 15155200 512-byte logical blocks: (7.75 GB/7.22 GiB)
[ 532.696163] sd 0:0:0:0: [sda] Write Protect is off
[ 532.696199] sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00
[ 532.697201] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 532.705144] sda: sda1
[ 532.709683] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 652.653963] rtl8192cu: MAC auto ON okay!
[ 652.703302] rtl8192cu: Tx queue select: 0x05
[ 659.219728] wlan0: authenticate with 74:ea:3a:c3:46:a6
[ 659.256422] wlan0: send auth to 74:ea:3a:c3:46:a6 (try 1/3)
[ 659.262886] wlan0: authenticated
[ 659.266550] wlan0: associate with 74:ea:3a:c3:46:a6 (try 1/3)
[ 659.274806] wlan0: RX AssocResp from 74:ea:3a:c3:46:a6 (capab=0x431 status=0 aid=4)
[ 659.275435] wlan0: associated
Seems to be everything fine, the wifi works well:
wlan0 IEEE 802.11bgn ESSID:"DomaciLAN"
Mode:Managed Frequency:2.422 GHz Access Point: 74:EA:3A:C3:46:A6
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=36/70 Signal level=-74 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:1 Missed beacon:0
and IP is obtained:
wlan0 Link encap:Ethernet HWaddr 00:E0:4C:0B:6F:67
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:97 errors:0 dropped:0 overruns:0 frame:0
TX packets:44 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:18973 (18.5 KiB) TX bytes:5845 (5.7 KiB)
But when tested the ping, it is not working well:
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: seq=7 ttl=64 time=46.916 ms
64 bytes from 192.168.1.1: seq=8 ttl=64 time=5.185 ms
--- 192.168.1.1 ping statistics ---
15 packets transmitted, 2 packets received, 86% packet loss
round-trip min/avg/max = 5.185/26.050/46.916 ms
After several minutes it starts to work better:
PING 192.168.1.1 (192.168.1.1): 56 data bytes
64 bytes from 192.168.1.1: seq=0 ttl=64 time=9.228 ms
64 bytes from 192.168.1.1: seq=1 ttl=64 time=43.432 ms
64 bytes from 192.168.1.1: seq=2 ttl=64 time=2.895 ms
64 bytes from 192.168.1.1: seq=3 ttl=64 time=2.284 ms
64 bytes from 192.168.1.1: seq=4 ttl=64 time=4.195 ms
64 bytes from 192.168.1.1: seq=5 ttl=64 time=10.648 ms
64 bytes from 192.168.1.1: seq=6 ttl=64 time=4.711 ms
64 bytes from 192.168.1.1: seq=7 ttl=64 time=10.544 ms
64 bytes from 192.168.1.1: seq=8 ttl=64 time=6.388 ms
64 bytes from 192.168.1.1: seq=9 ttl=64 time=4.570 ms
64 bytes from 192.168.1.1: seq=10 ttl=64 time=4.977 ms
64 bytes from 192.168.1.1: seq=11 ttl=64 time=3.464 ms
64 bytes from 192.168.1.1: seq=12 ttl=64 time=2.253 ms
64 bytes from 192.168.1.1: seq=13 ttl=64 time=2.150 ms
64 bytes from 192.168.1.1: seq=14 ttl=64 time=2.216 ms
64 bytes from 192.168.1.1: seq=15 ttl=64 time=2.146 ms
64 bytes from 192.168.1.1: seq=16 ttl=64 time=3.216 ms
64 bytes from 192.168.1.1: seq=17 ttl=64 time=1.811 ms
64 bytes from 192.168.1.1: seq=18 ttl=64 time=7.035 ms
64 bytes from 192.168.1.1: seq=19 ttl=64 time=1.304 ms
64 bytes from 192.168.1.1: seq=20 ttl=64 time=1.324 ms
64 bytes from 192.168.1.1: seq=21 ttl=64 time=2.657 ms
64 bytes from 192.168.1.1: seq=22 ttl=64 time=4.982 ms
64 bytes from 192.168.1.1: seq=23 ttl=64 time=1.638 ms
64 bytes from 192.168.1.1: seq=24 ttl=64 time=1.259 ms
64 bytes from 192.168.1.1: seq=25 ttl=64 time=3.403 ms
64 bytes from 192.168.1.1: seq=26 ttl=64 time=1.330 ms
64 bytes from 192.168.1.1: seq=27 ttl=64 time=1.261 ms
64 bytes from 192.168.1.1: seq=28 ttl=64 time=1.286 ms
64 bytes from 192.168.1.1: seq=29 ttl=64 time=2.818 ms
64 bytes from 192.168.1.1: seq=30 ttl=64 time=1.350 ms
64 bytes from 192.168.1.1: seq=31 ttl=64 time=2.155 ms
64 bytes from 192.168.1.1: seq=32 ttl=64 time=1.692 ms
64 bytes from 192.168.1.1: seq=33 ttl=64 time=7.612 ms
64 bytes from 192.168.1.1: seq=34 ttl=64 time=3.419 ms
64 bytes from 192.168.1.1: seq=35 ttl=64 time=1.603 ms
64 bytes from 192.168.1.1: seq=36 ttl=64 time=2.825 ms
64 bytes from 192.168.1.1: seq=37 ttl=64 time=1.279 ms
64 bytes from 192.168.1.1: seq=38 ttl=64 time=5.130 ms
64 bytes from 192.168.1.1: seq=39 ttl=64 time=1.451 ms
64 bytes from 192.168.1.1: seq=40 ttl=64 time=2.396 ms
64 bytes from 192.168.1.1: seq=41 ttl=64 time=2.086 ms
64 bytes from 192.168.1.1: seq=42 ttl=64 time=1.705 ms
64 bytes from 192.168.1.1: seq=43 ttl=64 time=6.720 ms
64 bytes from 192.168.1.1: seq=44 ttl=64 time=1.840 ms
64 bytes from 192.168.1.1: seq=45 ttl=64 time=3.819 ms
64 bytes from 192.168.1.1: seq=46 ttl=64 time=11.977 ms
64 bytes from 192.168.1.1: seq=47 ttl=64 time=1.874 ms
64 bytes from 192.168.1.1: seq=48 ttl=64 time=5.273 ms
64 bytes from 192.168.1.1: seq=49 ttl=64 time=3.110 ms
64 bytes from 192.168.1.1: seq=50 ttl=64 time=3.833 ms
64 bytes from 192.168.1.1: seq=51 ttl=64 time=2.351 ms
64 bytes from 192.168.1.1: seq=52 ttl=64 time=1.772 ms
--- 192.168.1.1 ping statistics ---
53 packets transmitted, 53 packets received, 0% packet loss
round-trip min/avg/max = 1.259/4.315/43.432 ms
As you may see, there are great differences in the time, means that the connection is not stable and therefor it is slow when transferring some larger files.