Remote access failure

[Jinglz]

@majortom84

I have the same issue. I have not found anything that fixes it.

Ditto. Although in another tread (Suddenly Remote access isn't working - Outside network appears and then fails - #8 by jiffi32) I did find this which may or may not help:

@OttoKerner

There is nothing that can be done on the side of plex.tv
Authentication servers are all up and working normally https://status.plex.tv/

Did you follow the link I set above?
If your ISP has integrated the McAfee security software in their systems, you need to disable it or wait until they have updated their block lists. They have blocked the main plex domain name for all your servers plex.direct from working.

Apart from that:

• check that your ISP has not put you behind a CG-NAT https://en.wikipedia.org/wiki/Carrier-grade_NAT
  More and more ISPs do, due to the shortage of IPv4 addresses – even existing customers.
• after a major Windows Update, verify that the network connection is not back to ‘public’ classification
• after a router firmware update or the exchange of the router, verify that the network connection in Windows is not back to ‘public’ classification
• If you have been using the automatic configuration until now, switch to the manual port forwarding. Don’t forget to tick the checkbox and don’t confuse external and internal port numbers: https://support.plex.tv/articles/200931138-troubleshooting-remote-access/
• look up the external port number under Settings - Server - Remote Access
  Use canyouseeme.org to test its availability (must be done from inside the same local network as the Plex server).

The behaviour to show the availability at first in green is normal. The connection check is only performed after you enter this page. So if the check is turning out negative, the status appears to switch to red after a few seconds. When in fact it has been red from the beginning.

It has been reported (in the same thread linked above) that the iTunes plugin was the cause of their issue. Might be worth checking that you don’t have the iTunes plugin activated in PMS. It wasn’t the source of my problem, I don’t even use iTunes or have the iTunes plugin activated in PMS.

In regards to checking if your ISP has put you behind a Carrier-Grade NAT (CGN), also known as Large-Scale NAT (LSN) you can check by checking your Public IP address (whatismyip.com) then log into your router and check the routers WAN IP, if they match if you are not behind a CGN. If the IPs are different then you are behind a CGN. (Source: How to check if the ISP uses Carrier-grade NAT (CGN) | Remoterig.com).

If the above source is correct then I’m not behind a CGN.