Plex not working without internet connection

Hi all, I tried to launch plex while I have no access to internet connection on my laptop, running mac OS X 10.11.6, where both my PMS and all my media are, and when I click “Open Plex” or preferences on the launch bar, I get this as on the screenshot attached. Can anyone halp? Thanks!

If you enter the IP address of the laptop instead of the loopback address (127.0.0.1), can you connect to the server?

Which IP address if I don’t have an internet connection?

I used to be able to access to my library even when offline with no problems. Now I just get this black screen…

Open a terminal window and type ifconfig and press enter. It will tell you the IP address of the computer.

@kegobeer-plex said:
Open a terminal window and type ifconfig and press enter. It will tell you the IP address of the computer.

It says:
Usage: ipconfig
Where is one of waitfall, getifaddr, ifcount, getoption, getpacket, getv6packet, set, setverbose

@kegobeer-plex said:
Open a terminal window and type ifconfig and press enter. It will tell you the IP address of the computer.

If I do ifconfig (which I thought it was a typo, sorry), the only thing close to an IP address is under lo0 and it’s 127.0.0.1

Did you type ifconfig or ipconfig?

Did both: ipconfig shows as the first response, ifconfig shows as the last one

Ok, just do this:

https://kb.wisc.edu/helpdesk/page.php?id=9257

When you launch PMS, it tries to connect to plex.tv to authenticate your account. If you don’t have internet, it can’t do this, so you get that message. Try these steps.

1 - Shut down PMS
2 - Find the file ~/Library/Preferences/com.plexapp.plexmediaserver.plist, it’s a text file, open it in your favorite plain text editor
3 - Find the entries that start with the word "Online… = ". Rename these temporarily to something like “a_Online…”.
4 - Restart PMS

You should now be able to connect using Plex Web. When you have internet, exit PMS, edit those entries back, restart PMS.

@MovieFan.Plex said:
When you launch PMS, it tries to connect to plex.tv to authenticate your account. If you don’t have internet, it can’t do this, so you get that message. Try these steps.

1 - Shut down PMS
2 - Find the file ~/Library/Preferences/com.plexapp.plexmediaserver.plist, it’s a text file, open it in your favorite plain text editor
3 - Find the entries that start with the word "Online… = ". Rename these temporarily to something like “a_Online…”.
4 - Restart PMS

You should now be able to connect using Plex Web. When you have internet, exit PMS, edit those entries back, restart PMS.

Once he’s in, can he add 127.0.0.1/255.255.255.255 to the auth list so he won’t have to authenticate again?

Ok, so after doing what you said in the preference file, it automatically open a page on the web browser and it’s asking me to create a new server. It sees the old one with its different libraries, but won’t let me access my old one. I’ve gone thru all the steps and created the new server, which took all the info from the old one. It’s a workaround, but not solving the issue of being able to access my old server. Now I have 2 servers. So it kind of works. Thanks @“MovieFan.Plex”
I just don’t understand why I can’t access my old server offline like I’ve always done, or if every time I’m offline I have to go thru all this again…

Hmm. I wonder if you changed too many things. Can you PM me that plist file?

@MovieFan.Plex said:
Hmm. I wonder if you changed too many things. Can you PM me that plist file?

I can’t unfortunately as I don’t have a way to transfer it into my phone, but what I changed is only on the second paragraph on every instance that says “OnlineResolution” and “OnlineVideoQuality”. I couldn’t find any other “online” entries


This is a picture of the original .plist file (I made a back up before editing). The edited version changed completely and now it only shows 3 lines of info

Oh. I goofed. It should have been the entries that start “PlexOnline…”. So I’m not sure how you got it working. Weird…

@MovieFan.Plex said:
Oh. I goofed. It should have been the entries that start “PlexOnline…”. So I’m not sure how you got it working. Weird…

I think that’s why I got asked to create a new server. So now, let’s go one step back: how do I remove the new server without removing all the old server stuff?, and then I’ll re edit the .plist file in the right places

Hold on a second. It looks like the text editor you used does not like the plist file. It should not look like that. Can you try opening it in another program? It should look like an XML file and start out

<?xml version ...