Business Products > Cloud Management Console & Clients
Avast Business Managed: "DNS Resolve has failed"
Johan109:
Same issue for the last two weeks, cloud 900 users. Please just fix it avast just moved over to Avast come on Avast.
REDACTED:
Also seeing this since June. I am looking for a refund for all the time that was paid for and protection defunked. This is not ok, this needs to be addressed ASAP. This is not business class.
jaromir:
Unless we see your specific support package, we cannot say if it is the same issue. When avast cannot get package with one method it tries another cycling IPv4 and IPv6 and http and https and using curl and winhttp. Messages in the log might be misleading. For instance some hosts do not resolve to IPv6 (intentionally) and such retry is always logged. If your log looks like snippet below, problem is with highlighted lines, remaining stuff in the log (DNS resolving) is just consequence that avast could not connect to server. We are continuing investigation and once we know more we will let you now.
[2018-07-13 02:32:38.193] [warning] [settings ] [ 4672: 3904] Did not find any values in file 'C:\ProgramData\AVAST Software\Avast\burger_client.ini'
[2018-07-13 02:32:39.865] [error ] [Ares ] [ 4672: 3064] Unable to resolve hosts after 1671 ms (258, ?)
[2018-07-13 02:32:39.880] [info ] [servers ] [ 4672: 3064] 'http://w3072800.iabs.u.avast.com/iabs' with [62.245.136.56] chosen for 'program'
[2018-07-13 02:33:01.084] [error ] [Curl ] [ 4672: 3064] 'http://w3072800.iabs.u.avast.com/iabs/servers.def.vpx' from [62.245.136.56] was not downloaded (12007, Couldn't connect to server)
[2018-07-13 02:33:01.084] [warning] [dldwrap ] [ 4672: 3064] HttpGet: download type switched to WinHttp IPv4
[2018-07-13 02:33:03.084] [info ] [servers ] [ 4672: 3064] 'http://d3831337.iabs.u.avast.com/iabs' with [62.245.136.56] chosen for 'program'
[2018-07-13 02:33:24.099] [error ] [WinHttp ] [ 4672: 3064] 'http://d3831337.iabs.u.avast.com/iabs/servers.def.vpx' from [62.245.136.56] was not downloaded (12002, ?)
[2018-07-13 02:33:24.099] [warning] [dldwrap ] [ 4672: 3064] HttpGet: download type switched to Curl IPv6
[2018-07-13 02:33:26.099] [warning] [servers ] [ 4672: 3064] There is no suitable url for 'program' with IPv6 and http
[2018-07-13 02:33:26.099] [warning] [dldwrap ] [ 4672: 3064] HttpGet: download type switched to WinHttp IPv6
[2018-07-13 02:33:29.771] [error ] [Ares ] [ 4672: 3064] Unable to resolve hosts after 1671 ms (258, ?)
[2018-07-13 02:33:29.771] [warning] [servers ] [ 4672: 3064] There is no suitable url for 'program' with IPv6 and http
[2018-07-13 02:33:29.771] [warning] [dldwrap ] [ 4672: 3064] HttpGet: download type switched to Curl IPv4
Libor Ambruz:
You'll be contacted by technical support representatives in order to get debug log files.
Aleksandr Nazaryan:
In my case I see "DNS resolve has failed" only for machines which are placed under Group with "Always update from Avast servers" checkbox is clear.
But after that failure error display updates are being pulled from Local Update server (located by IP address), you can see the screenshots in attached screenshots.
I guess "DNS resolve has failed" relates to failure to resolve Local Update server hostname.
When "Always update from Avast servers" checkbox is checked, then no DNS resolve error is displayed and updates are pulled only from Internet.
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