I've copied this from another section as I posted in the wrong category.
I recently discovered that my server was not accessible remotely - after working fine for ages.
The HTPC had a static ethernet IP on the LAN - set in my router.
I had a look at the settings and have played with UPnP and Port Forwarding - trying with just UPnP or with manually entered Port numbers. I checked Ports - neither 80 nor 32400 could be seen externally (or anything I tried). I double checked my Port Forwarding rule (to 32400) - and it was definitely set to the correct IP. None of this helped.
Plex was already a rule in windows firewall (all profiles), but I disabled the firewall to be sure, and deleted the virus software, no help.
I read posts to see if someone else's solution could help me - and ended up wondering whether an IP issue was causing the problem. I'd recently enabled a WiFi adapter on the HTPC - so it was running with two IP addresses (192.168.1.3 ethernet and 192.168.1.45 WiFi). Plex was always connected to the internet - just not accessible - and always showed the right Private IP (192.168 .1.3) and always the right Public IP.
So, I then collected some log files - shutting down Plex and clearing out in between. One set is with both adapters on - and no access (remote off) - the other is with the WiFi adapter disabled - and I thought I had regained access outside of my network (no wifi). Double checking the Ports - 32400 can be seen under these conditions (suggesting the WiFi IP was contributing to the issue (why?) - although 80 is still blocked (I read that can be normal?).
Odd, but solved I thought.
However, today I have discovered that the remote access was off again! Port 32400 is set - and can be seen externally (using canyouseeme.org) - but I've got the error 'Not available outside your network. Your server is signed in to Plex, but is not reachable from outside your network.' I've attached today's log files - again I shut down everything, cleared out the logs and created a new set for today (remote off no wifi).
After repeated disabling - enabling I suddenly got the green 'fully accessible' back - but this is getting soooo frustrating. I have no faith that it won't be off again soon. What on earth is going on?
Can someone help me understand what the issue is and what I need to do to solve it? At the moment I'd be happy just to get remote server access reliably working again, but I really would love to resume the use of the WiFi adapter without causing Plex problems.
cheers very much