Bug 640779
| Summary: | Very slow connection speed (1Mbps) with Atheros 9271 USB adapter (tested TP-Link WN722N) | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | v.plessky <v.plessky> |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 14 | CC: | aquini, dougsland, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, sgruszka |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-10-13 12:42:31 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
#iwconfig
-------------------
Ralink RT2500 (built-in 802.11g mini-PCI adapter)
*************
wlan1 IEEE 802.11bg ESSID:"dd-wrt"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1B:FC:91:83:4C
Bit Rate=54 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-16 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Atheros 9271
**************
wlan3 IEEE 802.11bgn ESSID:"dd-wrt"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1B:FC:91:83:4C
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=70/70 Signal level=-14 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
For both adapters signal quality is 100% (70/70)
Data for Ralink RT2500 (bult-in) adapter are quoted for comparision.
#ifconfig
------------------------
eth1 Link encap:Ethernet HWaddr 00:16:17:51:9A:1D
inet addr:192.168.1.50 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::216:17ff:fe51:9a1d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:31804 errors:0 dropped:0 overruns:0 frame:0
TX packets:16847 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:44975888 (42.8 MiB) TX bytes:1316224 (1.2 MiB)
Interrupt:19 Base address:0x4000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
wlan1 Link encap:Ethernet HWaddr 00:13:D3:84:FE:9D
inet addr:192.168.1.51 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::213:d3ff:fe84:fe9d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:846 errors:0 dropped:0 overruns:0 frame:0
TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:179945 (175.7 KiB) TX bytes:6028 (5.8 KiB)
wlan3 Link encap:Ethernet HWaddr D8:5D:4C:8E:D7:D2
inet addr:192.168.1.71 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::da5d:4cff:fe8e:d7d2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:51 errors:0 dropped:0 overruns:0 frame:0
TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:8654 (8.4 KiB) TX bytes:5969 (5.8 KiB)
*** This bug has been marked as a duplicate of bug 640612 *** |
Description of problem: Very slow connection speed (1Mbps) with Atheros 9271 USB adapter (tested TP-Link WN722N) idVendor 0x0cf3 Atheros Communications, Inc. idProduct 0x9271 AR9271 802.11n Version-Release number of selected component (if applicable): Fedora 14 - night build dated Oct.4, 2010 How reproducible: Always Steps to Reproduce: 1. Insert USB Wi-Fi adapter into USB slot 2. Connect to Access Point 3. Check Connection Information in Network Manager Actual results: Connection sped is 1Mbps Expected results: Connection sped should be 54Mbps (AP is located 1m from computer) Additional info: #lsusb -v Bus 001 Device 004: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 idVendor 0x0cf3 Atheros Communications, Inc. idProduct 0x9271 AR9271 802.11n bcdDevice 1.08 iManufacturer 16 ATHEROS iProduct 32 USB2.0 WLAN iSerial 48 12345 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 60 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 6 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 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 0x82 EP 2 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 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 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 0x06 EP 6 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered)