looks like some router and adapter uncompability.
router zyxel P-2812HNU-F3
http://www.zyxel.com/no/no/products_services/p_2812hnu_fx_series.shtml?t=p
and statement in router wireless specifications "Backward compatible to
802.11b/g" is not 100% correct ...
adapter
lsusb:
Bus 001 Device 003: ID 0846:4260 NetGear, Inc. WG111v3 54 Mbps Wireless
[realtek RTL8187B]
Symptoms:
ping to router
ping 10.0.0.138
PING 10.0.0.138 (10.0.0.138) 56(84) bytes of data.
^C
--- 10.0.0.138 ping statistics ---
26 packets transmitted, 0 received, 100% packet loss, time 25000ms
uname -na :
Linux irmute 3.11.0-2-lowlatency #1-Ubuntu SMP PREEMPT Fri Aug 16 22:06:58 UTC
2013 i686 i686 i686 GNU/Linux
modprobe --show-depends rtl8187:
insmod
/lib/modules/3.11.0-2-lowlatency/kernel/drivers/misc/eeprom/eeprom_93cx6.ko
insmod /lib/modules/3.11.0-2-lowlatency/kernel/net/wireless/cfg80211.ko
insmod /lib/modules/3.11.0-2-lowlatency/kernel/net/mac80211/mac80211.ko
insmod
/lib/modules/3.11.0-2-lowlatency/kernel/drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko
iwconfig wlan1:
wlan1 IEEE 802.11bg ESSID:"XXXXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point: CC:5D:4E:1B:46:44
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=39/70 Signal level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1 Invalid misc:0 Missed beacon:0
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https://bugs.launchpad.net/bugs/802902
Title:
Realtek rtl8187b wireless chipset slow speed
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