Remote access Emby via Synology 220j

[Oleksii.Zeltser 3]

Hello there!

I have a problem which I can't solve a few weeks.

I have fiber-optic internet at home. Connection goes via gpon terminal. My external IP (below, from Synology external access).

But my gpon terminal has other IP (below 172.22.*.*).

I've done port forwarding on my router (below). 

And nothing work. In Emby I have these settings. If I changed IP from 37.57.*.* (how in Synology) to 172.22.*.* I can connect from in-home Internet but not a remote.

Could you help me? What am I doing wrong? 

[Luke 42077]

Quote

I can connect from in-home Internet but not a remote.

Hi there, what exactly happens when you try?

[Oleksii.Zeltser 3]

On 8/15/2025 at 12:01 AM, Luke said:

Hi there, what exactly happens when you try?

I see this.

 

[Luke 42077]

OK are you sure Emby server is running? Are you still able to access it from inside your local network?

[Oleksii_Zeltser 0]

1 minute ago, Luke said:

OK are you sure Emby server is running? Are you still able to access it from inside your local network?

Emby is running. I have connection from local network w/o any problem. 

[Luke 42077]

Are you sure the remote address that you're trying is correct?

[Oleksii_Zeltser 0]

1 minute ago, Luke said:

Are you sure the remote address that you're trying is correct?

I use the same which I see in this application -  “external”.  This IP has my gpon terminal  

[sa2000 674]

172.22.xx.xx is within the Private Network local addresses range  - see https://en.wikipedia.org/wiki/Private_network

So it looks like you have Double NAT - I added a section on Double NAT in this article https://emby.media/support/articles/Connectivity.html

[Luke 42077]

@Oleksii.Zeltserhas this helped?

[Oleksii.Zeltser 3]

On 28.08.2025 at 13:18, sa2000 said:

Похоже, у вас Double NAT — я добавил раздел о Double NAT в эту статью  https://emby.media/support/articles/Connectivity.html

Do you mean I should do this?

"If it is the case, you would need to ask your ISP to give you a static public IP address outside this range. ISPs normally have a monthly fee for this."

[sa2000 674]

23 minutes ago, Oleksii.Zeltser said:

Do you mean I should do this?

"If it is the case, you would need to ask your ISP to give you a static public IP address outside this range. ISPs normally have a monthly fee for this."

No

That waa for cGNAT double NAT

Your case is Multiple Routers Double NAT

See section headed : Multiple Routers Double NAT in this article https://emby.media/support/articles/Connectivity.html

 

[Oleksii.Zeltser 3]

On 8/28/2025 at 1:18 PM, sa2000 said:

Похоже, у вас Double NAT — я добавил раздел о Double NAT в эту статью  https://emby.media/support/articles/Connectivity.html

Do you mean I should do this?

"If it is the case, you would need to ask your ISP to give you a static public IP address outside this range. ISPs normally have a monthly fee for this."

[Oleksii.Zeltser 3]

I'm sorry that I don't have enough knowledge, and it's a little difficult for me

I've read the article. I did additional forwarding but nothing work. 

Then I added two more forwarding (ports from my Synology). Nothing work again. 

I can't understand where I can find server public http port? 

Edited August 29, 2025 by Oleksii.Zeltser

[sa2000 674]

You appear to have your own router managing your 192.168.0.xxx network and you probably have an isp provided router/modem with its 172.22.xxxx network

The simplest option for you is to set your ISP provided router in modem : bridge mode - find out how to do that and then you will just have one router 

[Oleksii.Zeltser 3]

My provider gave me gpon terminal like on a photo (it has IP 172.22.xx.xx). Is it possible to do bridge mode? 

 

[sa2000 674]

Ask your isp 

[sa2000 674]

@Oleksii.Zeltserany luck?  Apologies for the short reply - i was preparing to travel and was on my iPhone

A google seach returned this AI overview

Edited September 1, 2025 by sa2000

[Oleksii.Zeltser 3]

5 hours ago, sa2000 said:

@Oleksii.Zeltserany luck?  Apologies for the short reply - i was preparing to travel and was on my iPhone

A google seach returned this AI overview

 

Thanks a lot for your answer. I'll call to my ISP because I don't have access to their equipment. 

[Oleksii.Zeltser 3]

Hi there!

 

I've solved my problem. I bought public IP for extra monthly fee. 

Thanks a lot to everyone