Date: Thu, 14 Mar 2024 07:12:20 +0000 (UTC) From: Sreenath Battalahalli <sreenathbh@rocketmail.com> To: freebsd-net@FreeBSD.org Subject: Sporadic DNS failure Message-ID: <962395829.4561667.1710400340452@mail.yahoo.com> References: <962395829.4561667.1710400340452.ref@mail.yahoo.com>
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Hi, I have been using freebsd as my primary OS on my ACER laptop for many years now. My laptop has 802.11AC card for which there is no kernel driver available. I am I use a USB wifi adapter to access the wifi router. I am having sporadic DNS failures . After reboot, everything works fine but after some time (30 minutes to a couple of hours), Internet connections start to fail. When this happens, I am able to ping 1.1.1.1, my DNS server. However, # drill yahoo.com (or any other name) fails with following error: Error: error sending query: Could not send or receive, because of network error Other devices connected to same Wifi router continue to work fine. I ran drill under truss and it appears after sendto to 1.1.1.1, no response comes. After this error occurs, it stays like that for many some time (20-30 minutes) and sometimes it gets resolved by itself. #uname -a FreeBSD bsd12 13.0-RELEASE-p13 FreeBSD 13.0-RELEASE-p13 #0: Mon Aug 29 19:52:47 UTC 2022 root@amd64-builder.d aemonology.net:/usr/obj/usr/src/amd64.amd64/sys /GENERIC amd64 Can someone please help me debug this problem? Thanks, Sreenath
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