The underlying connection was closed Logs

Proxy Check log

System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly.
   at System.Net.HttpWebRequest.GetResponse()
   at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:line 95
   at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\FallbackHttpDispatcher.cs:line 53
   at NzbDrone.Common.Http.HttpClient.ExecuteRequest(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 119
   at NzbDrone.Common.Http.HttpClient.Execute(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 55
   at NzbDrone.Core.HealthCheck.Checks.ProxyCheck.Check() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\HealthCheck\Checks\ProxyCheck.cs:line 46


Refresh series

System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly.
   at System.Net.HttpWebRequest.GetResponse()
   at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:line 95
   at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\FallbackHttpDispatcher.cs:line 53
   at NzbDrone.Common.Http.HttpClient.ExecuteRequest(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 119
   at NzbDrone.Common.Http.HttpClient.Execute(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 55
   at NzbDrone.Common.Http.HttpClient.Get[T](HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 225
   at NzbDrone.Core.MetadataSource.SkyHook.SkyHookProxy.GetSeriesInfo(Int32 tvdbSeriesId) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\MetadataSource\SkyHook\SkyHookProxy.cs:line 40
   at NzbDrone.Core.Tv.RefreshSeriesService.RefreshSeriesInfo(Series series) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Tv\RefreshSeriesService.cs:line 57
   at NzbDrone.Core.Tv.RefreshSeriesService.Execute(RefreshSeriesCommand message) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Tv\RefreshSeriesService.cs:line 154
   at NzbDrone.Core.Messaging.Commands.CommandExecutor.ExecuteCommand[TCommand](TCommand command, CommandModel commandModel) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Messaging\Commands\CommandExecutor.cs:line 95
   at CallSite.Target(Closure , CallSite , CommandExecutor , Object , CommandModel )
   at System.Dynamic.UpdateDelegates.UpdateAndExecuteVoid3[T0,T1,T2](CallSite site, T0 arg0, T1 arg1, T2 arg2)
   at CallSite.Target(Closure , CallSite , CommandExecutor , Object , CommandModel )
   at NzbDrone.Core.Messaging.Commands.CommandExecutor.ExecuteCommands() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Messaging\Commands\CommandExecutor.cs:line 41

Indexer check

System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly.
   at System.Net.HttpWebRequest.GetResponse()
   at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:line 95
   at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\Dispatchers\FallbackHttpDispatcher.cs:line 53
   at NzbDrone.Common.Http.HttpClient.ExecuteRequest(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 119
   at NzbDrone.Common.Http.HttpClient.Execute(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 55
   at NzbDrone.Common.Http.HttpClient.Get(HttpRequest request) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Http\HttpClient.cs:line 220
   at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.FetchCapabilities(NewznabSettings indexerSettings) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\Newznab\NewznabCapabilitiesProvider.cs:line 62
   at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.<>c__DisplayClass4_0.<GetCapabilities>b__0() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\Newznab\NewznabCapabilitiesProvider.cs:line 35
   at NzbDrone.Common.Cache.Cached`1.Get(String key, Func`1 function, Nullable`1 lifeTime) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Common\Cache\Cached.cs:line 81
   at NzbDrone.Core.Indexers.Newznab.NewznabCapabilitiesProvider.GetCapabilities(NewznabSettings indexerSettings) in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\Newznab\NewznabCapabilitiesProvider.cs:line 35
   at NzbDrone.Core.Indexers.Newznab.Newznab.get_PageSize() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\Newznab\Newznab.cs:line 22
   at NzbDrone.Core.Indexers.Newznab.Newznab.GetRequestGenerator() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\Newznab\Newznab.cs:line 26
   at NzbDrone.Core.Indexers.HttpIndexerBase`1.TestConnection() in M:\BuildAgent\work\b69c1fe19bfc2c38\src\NzbDrone.Core\Indexers\HttpIndexerBase.cs:line 315