Hello,
I have an rtl8192cu based USB WLAN dongle from D-Link, which works very
unreliable for me.
It is not directly recognized by my 3.18.7 linux kernel and I currently have
> # cat /etc/modprobe.d/wlan-pmhahn.conf
> install rtl8192cu /sbin/modprobe --ignore-install rtl8192cu $CMDLINE_OPTS ; echo "2001 330D" >/sys/bus/usb/drivers/rtl8192cu/new_id
> options rtl8192cu swenc=1
I'm able to transmit some data, but normally after some time
opening new TCP connections (especially SSL/TLS encrypted ones) fail.
Ping on the other hand does not show any significant problems:
> 953 packets transmitted, 950 received, 0% packet loss, time 953130ms
> rtt min/avg/max/mdev = 43.433/75.560/457.843/34.281 ms
dmesg shows this repeating pattern:
> [ 132.185612] rtl8192cu: MAC auto ON okay!
> [ 132.218366] rtl8192cu: Tx queue select: 0x05
> [ 133.583883] wlan0: authenticate with c0:25:06:ac:54:90
> [ 133.599402] wlan0: send auth to c0:25:06:ac:54:90 (try 1/3)
> [ 133.620267] wlan0: authenticated
> [ 133.621021] wlan0: associate with c0:25:06:ac:54:90 (try 1/3)
> [ 133.625534] wlan0: RX AssocResp from c0:25:06:ac:54:90 (capab=0x431 status=0 aid=3)
> [ 133.625559] rtl8192cu:rtl92cu_set_hw_reg():<0-0> switch case not processed
> [ 133.625565] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 133.626745] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 133.626751] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 133.626769] wlan0: associated
> [ 2553.461180] wlan0: deauthenticating from c0:25:06:ac:54:90 by local choice (Reason: 3=DEAUTH_LEAVING)
> [ 2553.461737] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2553.476041] cfg80211: Calling CRDA to update world regulatory domain
> [ 2553.484929] cfg80211: World regulatory domain updated:
> [ 2553.484932] cfg80211: DFS Master region: unset
> [ 2553.484933] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 2553.484935] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2553.484937] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2553.484939] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2553.484942] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
> [ 2553.484944] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
> [ 2553.484946] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
> [ 2553.484948] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2553.484950] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
> [ 2562.569359] wlan0: authenticate with c0:25:06:ac:54:90
> [ 2562.584177] wlan0: send auth to c0:25:06:ac:54:90 (try 1/3)
> [ 2562.593924] wlan0: authenticated
> [ 2562.595018] wlan0: associate with c0:25:06:ac:54:90 (try 1/3)
> [ 2562.623431] wlan0: RX AssocResp from c0:25:06:ac:54:90 (capab=0x431 status=0 aid=3)
> [ 2562.623459] rtl8192cu:rtl92cu_set_hw_reg():<0-0> switch case not processed
> [ 2562.623468] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2562.625029] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2562.625034] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2562.625053] wlan0: associated
> [ 2566.667513] wlan0: deauthenticated from c0:25:06:ac:54:90 (Reason: 2=PREV_AUTH_NOT_VALID)
> [ 2566.672628] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2566.689055] cfg80211: Calling CRDA to update world regulatory domain
> [ 2566.692128] cfg80211: World regulatory domain updated:
> [ 2566.692131] cfg80211: DFS Master region: unset
> [ 2566.692132] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 2566.692135] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2566.692137] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2566.692139] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2566.692141] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
> [ 2566.692143] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
> [ 2566.692145] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
> [ 2566.692147] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2566.692149] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
> [ 2567.566395] wlan0: authenticate with c0:25:06:ac:54:90
> [ 2567.591386] wlan0: send auth to c0:25:06:ac:54:90 (try 1/3)
> [ 2567.629133] wlan0: authenticated
> [ 2567.630070] wlan0: associate with c0:25:06:ac:54:90 (try 1/3)
> [ 2567.660368] wlan0: RX AssocResp from c0:25:06:ac:54:90 (capab=0x431 status=0 aid=3)
> [ 2567.660387] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2567.660404] rtl8192cu:rtl92cu_set_hw_reg():<0-0> switch case not processed
> [ 2567.660406] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2567.661988] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2567.661994] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2567.662024] wlan0: associated
> [ 2572.908712] wlan0: deauthenticated from c0:25:06:ac:54:90 (Reason: 2=PREV_AUTH_NOT_VALID)
> [ 2572.913573] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2572.930075] cfg80211: Calling CRDA to update world regulatory domain
> [ 2572.932805] cfg80211: World regulatory domain updated:
> [ 2572.932807] cfg80211: DFS Master region: unset
> [ 2572.932809] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 2572.932811] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2572.932813] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2572.932815] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2572.932817] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
> [ 2572.932820] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
> [ 2572.932822] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
> [ 2572.932824] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
> [ 2572.932826] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
> [ 2573.807378] wlan0: authenticate with c0:25:06:ac:54:90
> [ 2573.832330] wlan0: send auth to c0:25:06:ac:54:90 (try 1/3)
> [ 2573.835813] wlan0: authenticated
> [ 2573.836045] wlan0: associate with c0:25:06:ac:54:90 (try 1/3)
> [ 2573.862830] wlan0: RX AssocResp from c0:25:06:ac:54:90 (capab=0x431 status=0 aid=3)
> [ 2573.862857] rtl8192cu:rtl92cu_set_hw_reg():<0-0> switch case not processed
> [ 2573.862865] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2573.863933] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2573.863938] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
> [ 2573.863955] wlan0: associated
# lsusb -s 1:13 -v
> Bus 001 Device 013: ID 2001:330d D-Link Corp.
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x2001 D-Link Corp.
> idProduct 0x330d
> bcdDevice 2.00
> iManufacturer 1 Realtek
> iProduct 2 802.11n WLAN Adapter
> iSerial 3 00e04c000001
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 46
> bNumInterfaces 1
> bConfigurationValue 1
> iConfiguration 0
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 500mA
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 4
> bInterfaceClass 255 Vendor Specific Class
> bInterfaceSubClass 255 Vendor Specific Subclass
> bInterfaceProtocol 255 Vendor Specific Protocol
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x02 EP 2 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x03 EP 3 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x84 EP 4 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 1
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 0 (Defined at Interface level)
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0000
> (Bus Powered)
Any helpful ideas?
Thanks in advance.
Philipp
--
/ / (_)__ __ ____ __ Philipp Hahn
/ /__/ / _ \/ // /\ \/ /
/____/_/_//_/\_,_/ /_/\_\ [email protected]