Trouble with connecting sonarr and radaar to qbittorrent

What version of plexguide?

8.7.5

What Operating System?

Ubuntu 18.04.5 LTS

What is the problem?

I cant connect qbittorrent or rutorrent to Sonarr and Radarr it keeps saying unable to connect to qbittorrent / rutorrent using the info provided from plexguide after install of Sonarr and Radarr, on a clean install of ubuntu and plexguide

What did you already try to solve it?

I have tried with and without traefik enabled an with and without ports opened, with traefik enabled and ports open, but the result is the same, i have tried using the ip instead of the name, and have tried using localhost and 127.0.0.1, all with same result.
I have no trouble with connecting nzbget.

What frustrates me is that it have worked erlier, but after a clean install i cant get it to work again

Complete Logs

Logs help us with troubleshoting.

[v3.0.5.1144] NzbDrone.Core.Download.Clients.DownloadClientException: Failed to connect to qBittorrent, check your settings. —> System.Net.WebException: Error: ConnectFailure (Connection refused): ‘http://qbittorrent:8083/api/v2/app/webapiVersion’ —> System.Net.WebException: Error: ConnectFailure (Connection refused) —> System.Net.Sockets.SocketException: Connection refused
at System.Net.Sockets.SocketAsyncResult.CheckIfThrowDelayedException () [0x00014] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Net.Sockets.Socket.EndConnect (System.IAsyncResult asyncResult) [0x0002c] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Net.Sockets.SocketTaskExtensions+<>c.b__2_1 (System.IAsyncResult asyncResult) [0x00006] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Threading.Tasks.TaskFactory1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func2[T,TResult] endFunction, System.Action1[T] endAction, System.Threading.Tasks.Task1[TResult] promise, System.Boolean requiresSynchronization) [0x00019] in <254335e8c4aa42e3923a8ba0d5ce8650>:0
— End of stack trace from previous location where exception was thrown —

at System.Net.WebConnection.Connect (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x0019b] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
— End of inner exception stack trace —
at System.Net.WebConnection.Connect (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00217] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x000cc] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Net.WebOperation.Run () [0x0009a] in <91935ad653254a93b9d73a9f8f2f7a2d>:0
at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in <91935ad653254a93b9d73a9f8f2f7a2d>:0 at System.Net.HttpWebRequest.RunWithTimeoutWorker[T] (System.Threading.Tasks.Task1[TResult] workerTask, System.Int32 timeout, System.Action abort, System.Func1[TResult] aborted, System.Threading.CancellationTokenSource cts) [0x000f8] in <91935ad653254a93b9d73a9f8f2f7a2d>:0 at System.Net.HttpWebRequest.GetResponse () [0x00016] in <91935ad653254a93b9d73a9f8f2f7a2d>:0 at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x00123] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:81 --- End of inner exception stack trace --- at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x001bb] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:107 at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x00086] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Common\Http\HttpClient.cs:123 at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Common\Http\HttpClient.cs:59 at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentProxyV2.IsApiSupported (NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentSettings settings) [0x00019] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrentProxyV2.cs:36 --- End of inner exception stack trace --- at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentProxyV2.IsApiSupported (NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentSettings settings) [0x00081] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrentProxyV2.cs:63 at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentProxySelector.FetchProxy (NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentSettings settings) [0x00000] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrentProxySelector.cs:78 at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentProxySelector+<>c__DisplayClass6_0.<GetProxy>b__0 () [0x00000] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrentProxySelector.cs:73 at NzbDrone.Common.Cache.Cached1[T].Get (System.String key, System.Func1[TResult] function, System.Nullable1[T] lifeTime) [0x000b1] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Common\Cache\Cached.cs:104
at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentProxySelector.GetProxy (NzbDrone.Core.Download.Clients.QBittorrent.QBittorrentSettings settings, System.Boolean force) [0x00049] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrentProxySelector.cs:73
at NzbDrone.Core.Download.Clients.QBittorrent.QBittorrent.TestConnection () [0x00000] in M:\BuildAgent\work\63739567f01dbcc2\src\NzbDrone.Core\Download\Clients\QBittorrent\QBittorrent.cs:289

21-3-23 09:07:34.0|Warn|SonarrErrorPipeline|Invalid request Validation failed:
– Host: Unable to connect to qBittorrent

Additional information

Anything else that helps us assess the situation like screenshots. As much data as possible

qBittorrent version v4.3.3 Web UI (64-bit)
Sonarr version 3.0.5.1144
Radarr version 3.0.2.4552