Bananian Linux

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IDProjectCategoryView StatusDate SubmittedLast Update
0000203Bananian Linux[All Projects] Networkpublic2016-04-24 13:142016-04-25 05:12
Reporterdon 
Assigned To 
PriorityhighSeveritymajorReproducibilityalways
StatusnewResolutionopen 
Product Version15.08 
Target VersionFixed in Version 
Summary0000203: WiFi range on BPI-R1 Extremely limited (less than 5 metres)
DescriptionHardware - BPI-R1
Version - 150801
Uname - Linux BPI-R1 3.4.108-bananian #2 SMP PREEMPT Thu Aug 13 06:08:25 UTC 2015 armv7l GNU/Linux
hostapd - hostapd-rtl 2.4-4 armhf IEEE 802.11 AP, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator

The onboard Realtek RTL8192CU WiFi with driver (rtl8192cu) using hostapd-rtl only has a range of 5 metres.

The wlan0 is also dropping a lot of packets. The range is the biggest issue and since the driver does not allow me to adjust the txpower (to something like 20), I can't see if i can improve the range.

Running the following command every 2 seconds shows - iwconfig wlan0 ; ifconfig wlan0

wlan0 IEEE 802.11bgn ESSID:"BPIR1" Nickname:"<WIFI@REALTEK>"
          Mode:Master Frequency:2.472 GHz Access Point: AC:A2:13:5C:AB:AC
          Bit Rate:144 Mb/s Sensitivity:0/0
          Retry:off RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=30/100 Signal level=-86 dBm Noise level=0 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

wlan0 Link encap:Ethernet HWaddr ac:a2:13:5c:ab:ac
          inet addr:192.168.108.254 Bcast:192.168.108.255 Mask:255.255.255.0
          inet6 addr: fe80::aea2:13ff:fe5c:abac/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:21302 errors:0 dropped:7377 overruns:0 frame:0
          TX packets:38941 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2954808 (2.8 MiB) TX bytes:55604293 (53.0 MiB)

wlan0 IEEE 802.11bgn ESSID:"BPIR1" Nickname:"<WIFI@REALTEK>"
          Mode:Master Frequency:2.472 GHz Access Point: AC:A2:13:5C:AB:AC
          Bit Rate:144 Mb/s Sensitivity:0/0
          Retry:off RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=95/100 Signal level=-65 dBm Noise level=0 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

wlan0 Link encap:Ethernet HWaddr ac:a2:13:5c:ab:ac
          inet addr:192.168.108.254 Bcast:192.168.108.255 Mask:255.255.255.0
          inet6 addr: fe80::aea2:13ff:fe5c:abac/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:21756 errors:0 dropped:7451 overruns:0 frame:0
          TX packets:39956 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3002613 (2.8 MiB) TX bytes:57172761 (54.5 MiB)


wlan0 IEEE 802.11bgn ESSID:"BPIR1" Nickname:"<WIFI@REALTEK>"
          Mode:Master Frequency:2.472 GHz Access Point: AC:A2:13:5C:AB:AC
          Bit Rate:144 Mb/s Sensitivity:0/0
          Retry:off RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=99/100 Signal level=-73 dBm Noise level=0 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

wlan0 Link encap:Ethernet HWaddr ac:a2:13:5c:ab:ac
          inet addr:192.168.108.254 Bcast:192.168.108.255 Mask:255.255.255.0
          inet6 addr: fe80::aea2:13ff:fe5c:abac/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:22293 errors:0 dropped:7629 overruns:0 frame:0
          TX packets:41200 errors:0 dropped:1 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3084468 (2.9 MiB) TX bytes:58756384 (56.0 MiB)
Steps To ReproduceBPI-R1
Bananian 15.08.01
bananian-config (set to BPI-R1)
apt-get update
apt-get upgrade
apt-get install hostapd-rtl

Then surf youtube and watch the connection drop when between 3 to 5 metres from the device.
Additional InformationThis is a significant problem when the BPI-R1 has 2 built in antennas and is supposed to be similar to a router.
TagsNo tags attached.
Attached Files

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-  Notes
(0000362)
don (reporter)
2016-04-25 05:12

The same issue occurs under the new 3.4.111 kernel

- Issue History
Date Modified Username Field Change
2016-04-24 13:14 don New Issue
2016-04-25 05:12 don Note Added: 0000362


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