Moved to a new apartment, can't get remote access to work

Plex Media Server Desktops & Laptops
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Server Version#: 1.26.0.5715

Hi everyone, sorry to bother you with this but last week I moved to a new apartment and I haven’t been able to get remote access up and running. In my old home, I had my own router acting as an Access Point, connected to the ISP’s router, and my server (running Ubuntu) connected to the access point. Never had an issue.

Since I moved a couple of things happened. Not needing to connect my own router (my new place is a lot smaller than my previous one) I decided to plug all my devices, including the server, to the ISP’s router. I went into the router’s settings and opened the 32400 port for plex with its private IP address which I reserved for it in the router itself. Plex’s Remote Access tab claimed I was behind a Double Nat, which makes no sense since it was plugged directly into the ISP’s router. I read that Double Nat could be fixed by setting the ISP router in Bridge mode, so I did that and connected my own router as the main one: the same prompt appeared claiming I was still behind a double nat. Now I did the same setup I had before, ISP router connected to my own router acting as an Access Point, but still nothing.

Sorry in advance if I wasn’t very clear, english is not my first language.

Thank you.

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Do you have a public ipv4 address?

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Yes, I have both a private one and a public one.

4

Is your public IP 100.64.0.0 to 100.127.255.255.x ?

If so, this is CGNAT (Carrier Grade NAT) where they have a router between you and the actual internet.

Your modem/router then becomes the 2nd NAT in the chain, resulting in Double NAT as Plex would report.

The easiest way to verify this:

  1. Log in to modem/router
  2. Look at the WAN IP address it reports.

If it’s

  1. 10.x.x.x
  2. 172.16.x.x → 172.31.x.x
  3. 192.168.x.x
  4. 100.64.0.0 → 100.127.255.x

then you are indeed in a double NAT situation.

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Thank you for answering. Just checked and it is indeed one of those cases… if changing the router to Bridge mode didn’t fix it, how should I proceed? My own router is a TP-Link Archer C7.

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Which one is it?

In most of these cases, you’re out of luck and need to ask (and ultimately pay for - monthly) a proper public IP address. I’ve seen cost be somewhere from $5-$10.

If you’re in a Condo / building with shared access, you need to speak to the local admin and not the ISP.

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It’s one of these 100.64.0.0 → 100.127.255.x
I’m gonna call the ISP and see if I have any luck.

Thanks!

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You should be good. Most ISPs are willing to give you the real IP for a small fee.

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Ask for a “legacy” ipv4 address. Plexs ipv6 implementation has been poor for years.

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Asking the ISP for a public IPV4 address solved the issue instantly! Thank you both so much for the help.

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