[DragonFlyBSD - Bug #2820] (New) TP-Link USB Wi-Fi adapter cannot be reattached to the system

bugtracker-admin at leaf.dragonflybsd.org bugtracker-admin at leaf.dragonflybsd.org
Fri May 22 21:45:03 PDT 2015

Issue #2820 has been reported by shamaz.

Bug #2820: TP-Link USB Wi-Fi adapter cannot be reattached to the system

* Author: shamaz
* Status: New
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
Hello. I have TL-WN821N USB Wi-Fi adapter (urtwn driver) and DragonFlyBSD
built from DragonFly_RELEASE_4_0 branch.

If I attach my adapter and then invoke the following:

$ ifconfig wlan0 create wlandev urtwn0
$ ifconfig wlan0 up

and then physically detach the adapter, I will not be able to reattach it
again (no kernel messages are printed, no urtwn0 interface is created)
until reboot. Reboot time is also increases drastically.

If I invoke

$ ifconfig wlan0 destroy

before detaching the device, all works just fine.

Quite frequent condition is that I get a message "urtwn0: device timeout"
when wi-fi adapter is working, urtwn0 interface is then destroyed and the
adapter cannot be reattached.

I would like to know if the first symptom can be reproduced with other USB
wireless adapters.

   Vasily Postnicov.

You have received this notification because you have either subscribed to it, or are involved in it.
To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account

More information about the Bugs mailing list