2020-10-19 21:33:54.479 Error PortMapper: Error creating port map
*** Error Report ***
Version: 4.5.1.0
Command line: /opt/emby-server/system/EmbyServer.dll -programdata /var/lib/emby -ffdetect /opt/emby-server/bin/ffdetect -ffmpeg /opt/emby-server/bin/ffmpeg -ffprobe /opt/emby-server/bin/ffprobe -restartexitcode 3 -updatepackage emby-server-deb_{version}_armhf.deb
Operating system: Linux version 5.4.51-v7l+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1333 SMP Mon Aug 10 16:51:40 BST 2020
Framework: .NET Core 3.1.7
OS/Process: arm/arm
Runtime: opt/emby-server/system/System.Private.CoreLib.dll
Processor count: 4
Data path: /var/lib/emby
Application path: /opt/emby-server/system
MediaBrowser.Model.Net.HttpException: MediaBrowser.Model.Net.HttpException: <s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><s:Fault><faultcode>s:Client</faultcode><faultstring>UPnPError</faultstring><detail><UPnPError xmlns="urn:schemas-upnp-org:control-1-0"><errorCode>402</errorCode><errorDescription>Invalid Args</errorDescription></UPnPError></detail></s:Fault></s:Body></s:Envelope>
at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.SendAsyncInternal(HttpRequestOptions options, String httpMethod)
at Emby.Server.Implementations.HttpClientManager.CoreHttpClientManager.SendAsync(HttpRequestOptions options, String httpMethod)
at Mono.Nat.Upnp.UpnpNatDevice.GetSpecificMappingAsync(Protocol protocol, Int32 publicPort, CancellationToken cancellationToken)
at Mono.Nat.Upnp.UpnpNatDevice.CreatePortMap(Mapping mapping, CancellationToken cancellationToken)
at Emby.PortMapper.ExternalPortForwarding.CreateRules(INatDevice device, CancellationToken cancellationToken)
Source: Emby.Server.Implementations
TargetSite: Void MoveNext()