Bug 1130486
| Summary: | AR9271 very slow wireless connection | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | rvcsaba |
| Component: | kernel | Assignee: | Dan Williams <dcbw> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 21 | CC: | dcbw, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, phaux4, psimerda |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-10-08 23:17:30 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
I tested this bug with 3.15.10-200.fc20.x86_64 kernel, but Fedora 21 pre-alpha "release". My wireless network connection is fast (3.17 MB/s) with TL-WN722N. This is a kernel regression, not NetworkManager problem. kernel-3.16.2-300.fc21.x86_64: same problem uname -r 3.16.3-300.fc21.x86_64 This problem actuality yet. Latest good kernel: kernel-3.15.10-201.fc20.x86_64 Rebuild kernel this patch? https://bugzilla.kernel.org/show_bug.cgi?id=78581#c21 Workaround. I create /etc/modprobe.d/ath9k_htc.conf file: options ath9k_htc nohwcrypt=1 This adapter usually performs bad, but after upgrading to F21 I couldn't even connect to my router (it was stuck at sending DHCP packets) (In reply to rvcsaba from comment #5) > Workaround. I create /etc/modprobe.d/ath9k_htc.conf file: > > options ath9k_htc nohwcrypt=1 This worked for me. Latest kernel solved this problem. Thanks! Thanks for letting us know. |
Description of problem: I upgrade Fedora 21 pre-alfa using yum. My TP-Link TL-WN722N USB wireless interface (0cf3:9271 Atheros Communications, Inc. AR9271 802.11n) very slow (30-100 kB/s down stream), but this interface work correctly in Fedora 20 (2-3 MB/s), 3.15.9-201 kernel. The iwconfig command reported high invalid misc. packets: Link Quality=38/70 Signal level=-72 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:1 Invalid misc:1592 Missed beacon:0 I tested with 0bda:8189 Realtek Semiconductor Corp. RTL8187B Wireless 802.11g 54Mbps Network Adapter, this interface faster (460 kB/s avarage), then TP-Linink in Fedora 21. The iwconfig reported few invalid misk. packet: Link Quality=52/70 Signal level=-58 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:1818 Invalid misc:53 Missed beacon:0 This problem NetworkManager or kernel? (Sorry my very bad english.) Version-Release number of selected component (if applicable): rpm -q NetworkManager kernel linux-firmware NetworkManager-0.9.10.0-3.git20140704.fc21.x86_64 kernel-3.16.1-300.fc21.x86_64 linux-firmware-20140605-38.gita4f3bc03.fc21.1.noarch How reproducible: Download file. Steps to Reproduce: 1. 2. 3. Actual results: slow wireless connection Expected results: fast wireless connection Additional info: