Configuring PLEX remote access: why isn't this working?

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Jason

• October 07, 2022 19:54

This should be simple yet somehow it's not: I've gone into the Network settings and I've created a new entry: TCP, port 32400, my Synology NAS (selected by device name, not IP), port 32400, and Ingress Firewall is set to allow Any Sources.

This should work, but it doesn't. I then tried pointing the rule at the IP of the Synology NAS, the same IP shown in the PLEX settings, and it won't work. Or it does work for a bit - PLEX does the test and says it's "Fully accessible outside your network", but within a minute or two it will go back to saying it's not available.

My Synology NAS has two Ethernet ports, both are connected and live, but setting the rule to go to either one had the same result.

What am I missing? I know it's going to be something obvious...but I can't figure out what it is!🤷‍♂️

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  Firewalla

  • October 07, 2022 23:56

  Which Firewalla are you using? In what mode? and how are you connecting everything together? 

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  Jason

  • October 08, 2022 04:20

  It's a Firewalla Purple in router mode.

  Xfinity Modem > Firewalla Purple > Switch > Synology NAS
  
  Now that I think about it, perhaps it's the Xfinity modem, I might not have it configured fully to be a dumb modem, it might be trying to do other things which could interfere. 🤔

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  Firewalla

  • October 08, 2022 06:26

  If it is from xfinity, it is unlikely to be a modem, it may be just a full router. You can use either port forward from that, or turn that router into a modem.

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  Jason

  • October 08, 2022 13:42

  Yes, I misspoke, it's a full blown router/modem combo and it's possible there's something on it that is interfering. I'll explore that issue today.

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  Jason

  • October 08, 2022 15:36

  And, yes, it was the Xfinity router/modem causing the issue. No wonder I couldn't figure it out just by looking at the Firewalla settings! Turns out I never put the Xfinity router in full bridge mode, so it was doing it's own firewall port blocking. All seems to be well now, thanks!

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  Firewalla

  • October 09, 2022 00:31

  No worries; one way to detect this is to look at the WAN IP and your public IP, if they are different, you have another router in front of you

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