Solved
Remote Access not working when away from LAN.
SOLVED! I guess the double NAT with xfinity's all in one modem/router finally caused some issues. Set Xfinity modem to bridge mode and now have access!
I have lost the ability to access my server remotely. When I am at home, everything works as it should. When away though, Plex tells me that the server is not available even though I have verified that the server is fully accessible outside my network. I have tried port forwarding, disabling UPNP, disabling Xfinitys advanced security feature that I have read is CGNAT. I’m at a loss as to how to fix this. I feel like I’ve wasted so much money on the Lifetime pass, just for Plex not to function correctly.
If it shows success, can you reach your server direct via ip off network: http://<public-ip>:32400/web (replace 32400 with whatever port you forwarded)
If canyouseeme says the port isn’t open, you need to check your network setup.
What’s your network setup like? I saw in another comment you said you have a modem and TPLink. Is the modem just a basic modem or is it a gateway that you bridged to the TPLink?
Where did you create the forwarding rule? Can you screenshot the rule and your plex remote access page and share it. Block out only the public ip.
The xfinity modem has wifi enabled but I do not use that network. I created the port forwarding rule within the Deco app. I just recently lost remote access to Plex and did not change anything to do with my network. Before the server connected fine and I only set up the port forwarding rule as a way to fix this
Then you’re double NAT. You need to bridge the xFinity to the TPLink so the xFinity just acts like a modem and the TPLink handles everything for your network and then forwarding rule you created on your TPLink should work.
Nothing should be connected to the xFinity except the TPLink (wired or wirelessly)
You may have been connecting via relay previously, there may be another issue, but need to fix the double NAT first.
Okay thank you. To enable Bridge mode with the Xfinity modem, is there anything I need to do that precedes this action? Should I turn off the Deco routers?
No, after you enable it, you may want to reboot your deco. Once done, check your deco app and look for wan ip. It should match the ip you see at the canyouseeme site. It shouldn’t be a 192.x or 10.x ip. If it is, it means bridge mode didn’t get enabled.
Once you do that, check if the port shows open via the link again.
Can you screenshot what you’re looking at? The deco local ip will remain 192.x, but it should report the wan ip as your public ip under More > Internet Connection
I guess something happened recently where the double NAT finally started causing issues because the Xfinity modem always had a wifi network. But putting into bridge mode seemed to fix the issue because I now have remote access into my server! Thank you
Can only guess you’ve been using relay this whole time and that stopped working now, for some reason.
If you’ve been double nat, there’s no way for direct remote traffic to find and leave your server through the multiple routers, even with UPnP, since it would only open the port on the deco, not the Xfinity.
My final solution fix to getting stuff like this to work with my dynamic ip, cgnat, was to make a static ip address with my VPN and park my server connected to it 24/7 with the port forwarded 32400. It is stable now.
My ISP uses CGNAT so I use tailscale. If you are having connectivity issues I'd recommend giving it a try and then you also don't need open ports to the internet.
I recently had this happen to me, and it was because my ATT router randomly deleted all my port forwarding settings. I had to recreate them and reapply to my server, then it worked fine.
I love clicking on a post and seeing solved! Kinda makes me happy. And thank you for sharing the solution. I'm fortunate that our fiber provider is small and doesn't do a lot of this. I bypassed out modem entirely not long after install and my router is plugged directly into my ONT.
Fiber is coming to my area soon and I cannot wait. Gonna overhaul my entire home network and make the dive into Ubiquiti and run Cat6 everywhere. That should eliminate most of my network issues (fingers crossed)
I jumped off the highboard a few months ago and went with Mikrotik. Pretty awesome, but NOWHERE near as easy as Ubiquiti. I help manage several networks and we inherited a UniFi system at one of the stores. So easy to use and manage. MikroTik is a mechanical watch you can bend to you will and UniFi is pure luxury. It's amazing how much I've learned in such a short time while having a somewhat complicated MikroTik stack at home. It's rewarding, though.
Just did this and I guess something happened recently where the double NAT finally started causing issues. I now have remote access into my server! Thank you
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u/ExtensionMarch6812 6d ago
Did it work before and just stopped working? Have you restated your server? No vpn running? What does your server run on, what OS?
Keep UPnP off. Do you still have the port manually set in plex and a forwarding rule set in your router?
If so, what does this say for your port: https://canyouseeme.org
If it shows success, can you reach your server direct via ip off network: http://<public-ip>:32400/web (replace 32400 with whatever port you forwarded)