Norton Firewall blocking Sonarr DNS - "The remote name could not be resolved: 'skyhook.sonarr.tv'"

I’ve got Sonaar installed on my Windows 10 box as a service, randomly a couple days ago I started to get this error:

System.Net.WebException: The remote name could not be resolved: 'skyhook.sonarr.tv
at System.Net.HttpWebRequest.GetResponse()
at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Common\Http\Dispatchers\ManagedHttpDispatcher.cs:line 54
at NzbDrone.Common.Http.Dispatchers.FallbackHttpDispatcher.GetResponse(HttpRequest request, CookieContainer cookies) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Common\Http\Dispatchers\FallbackHttpDispatcher.cs:line 57
at NzbDrone.Common.Http.HttpClient.Execute(HttpRequest request) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Common\Http\HttpClient.cs:line 70
at NzbDrone.Common.Http.HttpClient.Get[T](HttpRequest request) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Common\Http\HttpClient.cs:line 193
at NzbDrone.Core.MetadataSource.SkyHook.SkyHookProxy.GetSeriesInfo(Int32 tvdbSeriesId) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\MetadataSource\SkyHook\SkyHookProxy.cs:line 36
at NzbDrone.Core.Tv.RefreshSeriesService.RefreshSeriesInfo(Series series) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Tv\RefreshSeriesService.cs:line 57
at NzbDrone.Core.Tv.RefreshSeriesService.Execute(RefreshSeriesCommand message) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Tv\RefreshSeriesService.cs:line 164


I reboot the box and it’s not fixed, I’m on the latest MASTER.

Any suggestions?

Problems with your DNS. either settings or just the DNS server your ISP provides.

appreciate your response @Taloth…however, the box can ping my DNS servers, as well as access all other network services??? It’s a windows 10 ultimate box with static IP and all other services are working…

Anything else to check?

You mentioned it was intermittent, so pinging now might be successful, but at other times fail. I would try configure a fallback dns server, there are some public ones, like opendns & google’s public dns server.

right, it is intermittent, however currently, i’m getting this error in Sonarr, however, I’m able to use DNS on the box. I have Google DNS set up as my fall back (8.8.8.8), and my ISP as primary.

If DNS was a problem, wouldn’t I be seeing other issues on the box other than Sonarr?

The error is literally Windows saying to Sonarr “Sry, cannot resolve the dns name skyhook.sonarr.tv”.
Could also be a proxy configured somewhere that interferes.

okay, if that’s the case, I shouldn’t be able to ping skyhook.sonarr.tv from the box, correct?

I do appricate your help @taloth, but with respect, it’s not a Windows DNS problem Sir.

Browse to http://skyhook.sonarr.tv/v1/tvdb/search/en/?term=rob+and+big in internet explorer. (Still not conclusive)

You may also try restart Sonarr, see if the problem (temporarily) disappears, but I wouldn’t hold my breath.

Pinging isn’t conclusive when you’re dealing with a proxy/vpn.
If you have a vpn, check it’s configuration. If your configuration causes Sonarr communication to go over the vpn, then dns might too and hit a wall.

Yup, got the .jason file.

I’ve tried restarting sonarr service as well as the entire windows box.

No VPN, no Proxy

Just to be sure @Taloth I rebooted my router, and internet access point. Still no luck.

Any other ideas?

I found out what it was. Was Norton’s Firewall. However, I already created exceptions for NZBdrone.exe and NZBdroneConsole.exe…so I’m still trying to figure out why it’s being blocked? There’s nothing in the security logs.

Any ideas?

Perhaps it relies on the file being unmodified in addition to the file name, which would cause it to break every update (though there hasn’t been an update recently).

Haven’t used Norton in over 10 years for similar reasons.

Crap, I had noticed the Norton icon on the desktop and wanted to mention ‘firewall’, but forgot about it after talking about proxy/vpn.
Anyway, problem found.

Always go with your gut buddy! It’s all good, really do appriciate the help. Good work on this platform. Sick.

Yeah, what do people use now? I only have it installed to protect me against something, but now I have this plex server running with Headphones, Couchpotatoe and Sonarr, I need a better solution.

Not sure, I’ve stuck with whatever Windows ships with, hasn’t been an issue for me.

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