Can't connect Kickass and Transmission

Hi.
First time on Sonarr recently moved from SickRage.
After install, i go to setting download client and try to connect with Transmission, but all connections is refused. Next i try to setting Indexers, first Kickass(Log’s):

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15-1-27 07:34:57.4|Warn|KickassTorrents|Unable to connect to indexer: Error: NameResolutionFailure

System.Net.WebException: Error: NameResolutionFailure
at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00000] in :0
at System.Net.HttpWebRequest.GetResponse () [0x00000] in :0
at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00000] in :0

15-1-27 07:34:57.6|Warn|NzbDroneErrorPipeline|Invalid request Validation failed:
– Unable to connect to indexer, check the log for more details
15-1-27 07:35:33.0|Error|RestSharpExtensions|Error communicating with server

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After i try Nzbplanet.net same error:

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15-1-27 08:17:07.6|Warn|Newznab|Unable to connect to indexer: Error: NameResolutionFailure

System.Net.WebException: Error: NameResolutionFailure
at System.Net.HttpWebRequest.EndGetResponse (IAsyncResult asyncResult) [0x00000] in :0
at System.Net.HttpWebRequest.GetResponse () [0x00000] in :0
at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00000] in :0

15-1-27 08:17:08.5|Warn|NzbDroneErrorPipeline|Invalid request Validation failed:
– Unable to connect to indexer, check the log for more details

------//----------

Hardware: Raspberry Pi
OS: OpenMedia Vault

Thanks for support

Looks like DNS lookup problems, based on the error messages: NameResolutionFailure.