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If need be you can change the port MC uses from 52199 to another one (preferably one not generally used) then disable/re-enable Media Network.

If you're trying to access it outside of your local network you'll have to forward the port. But be warned some ISPs completely block port forwarding and your only option would be to use a VPN that supports port forwarding in order to access it. This is what I have to do as my new fiber ISP blocks port forwarding so I have to use ProtonVPN (one of the few VPN services that has a port forwarding feature) and bind the port allowed by the VPN in MC in order to access it outside my network.

It now times out for me as well, so the port is indeed changed.

So, back to the other causes... There's still something blocking access. Is the port forward still in place? Try rebooting the router too.

Well, it seems you (or the AT&T tech) managed to assign port 52199 to the router Administration page, and it's open to the internet!

https://99.8.87.177:52199

That just times out for me.

It's still 99.8.87.177

Can you check if your current public IP address changed?

I can't find anywhere in the UI to set the port for the remote admin access.

I've spent the last 90 minutes trying to explain to AT&T what the issue is.  They claim to have changed the port number, but I'm skeptical and the remote access for MC is still not working. 

Can you do your test again and see if you see the same issue? Thanks.

Well, it seems you (or the AT&T tech) managed to assign port 52199 to the router Administration page, and it's open to the internet!

https://99.8.xx.xx:52199

This works for me and opens your router Admin page, asking for login. Very dangerous. So, the connection to MC on port 52199 doesn't go through because the router itself is handling/intercepting it.

1 - Find the router page where the remote admin port is set, set it back to default (not sure what that is. Set it to 8443 if you must, anything other than 52199, 80 or 443)

2 - DISABLE the remote administration of the router, if there's an option for that. Some ISPs remove that option so that they can manage the router remotely. Administration should be allowed only via LAN/WIFI connection.

Look under Thumbnails - Thumbnail Text. You can add multiple lines, including expressions.

StudyPC or StudyPC2 ?

- After turning off that router setting, check that the PC now has a private IP address again (192.168.x.x)
- The LAN connection should work again
- Using a PC not connected to your LAN, try to connect to the MC library using the public IP address. This MUST work if there are no firewall issues.

You can also try to access MC Panel on a browser using these links - ALL of them should work:
- on the MC machine: http://localhost:52199/Panel
- on another machine/phone on your LAN: http://192.168.1.68:52199/Panel or http://studyPC2:52199/Panel
- from outside your LAN: http://99.8.87.177:52199/Panel

Make sure the IP addresses above are still correct.

Device name is studyPC2.  I called the library StudyPC in MC.  Sorry for any confusion.

I turned off the router setting, and the LAN connection works again.   It does not work for the laptop that is not connected to the LAN.


- on the MC machine: http://localhost:52199/Panel - this works
- on another machine/phone on your LAN: http://192.168.1.68:52199/Panel or http://studyPC2:52199/Panel  - this works
- from outside your LAN: http://99.8.87.177:52199/Panel  - this does not "The connection was reset" error.


Using Windows 10, and Windows Defender as the firewall.  Control Panel\System and Security\Windows Defender Firewall\Allowed apps lists the apps that can communicate through the firewall, and MC 32 is checked.  Not sure what else to check...

The pleasure is mine, always grateful to see a wonderful program getting better everytime.
Have a nice evening.
Greetings, Alex