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The VPN connection does not open

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The VPN connection does not open

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The VPN connection does not open
The VPN connection does not open
2022-11-02 19:38:48 - last edited 2022-11-07 06:34:25
Model: Archer MR400  
Hardware Version: V4
Firmware Version: 1.2.0 0.9.1 v0001.0 Build 220518 Rel.59424n

Hi,

We have tried with NO-IP and TP-link DNS services. Everything is done according to the attachments, and the Open VPN connection does not work.
What could be the solution? Is Ver. 4.3 too new?
Any help would be needed

Regags

Pentti

 

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#1
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1 Accepted Solution
Re:The VPN connection does not open-Solution
2022-11-03 03:44:54 - last edited 2022-11-07 06:34:25

  @Lajunpe 

 

Hi, do you mean you've enabled OpenVPN Server on the MR400 V4.30, but VPN Clients are unable to connect the OpenVPN Server?

 

Please check the WAN IP address of the MR400 to see if it is a public IP address or private IP address, and you could also search "what is my IP" on MR400 client device to see if the two IP addresses are the same or not, if not, it means there is another NAT in the front of MR400, that is why OpenVPN doesn't work.

If you are using a SIM card inside the MR400 for internet access, please contact the SIM card carrier to see if they could assign you a public IP address.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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#2
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Re:The VPN connection does not open-Solution
2022-11-03 03:44:54 - last edited 2022-11-07 06:34:25

  @Lajunpe 

 

Hi, do you mean you've enabled OpenVPN Server on the MR400 V4.30, but VPN Clients are unable to connect the OpenVPN Server?

 

Please check the WAN IP address of the MR400 to see if it is a public IP address or private IP address, and you could also search "what is my IP" on MR400 client device to see if the two IP addresses are the same or not, if not, it means there is another NAT in the front of MR400, that is why OpenVPN doesn't work.

If you are using a SIM card inside the MR400 for internet access, please contact the SIM card carrier to see if they could assign you a public IP address.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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#2
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Re:The VPN connection does not open
2022-11-03 18:03:33

  @Lajunpe 

Thanks,

Yes, this is a problem.
Yes, there are two NAT in front of MR400
I checked the IP address it is 213.28.227.197 by whatismyipaddress
Also here is the same address:
mynoipcom/dynamic-dns
And the Open VPN program tries to contact the same address?
Attached is the log:

Thu Nov 03 19:31:07 2022 OpenVPN 2.4.7 x86_64-w64-mingw32 [SSL (OpenSSL)] [LZO] [LZ4] [PKCS11] [AEAD] built on Feb 21 2019
Thu Nov 03 19:31:07 2022 Windows version 6.2 (Windows 8 or greater) 64bit
Thu Nov 03 19:31:07 2022 library versions: OpenSSL 1.1.0j  20 Nov 2018, LZO 2.10
Enter Management Password:
Thu Nov 03 19:31:07 2022 MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:25340
Thu Nov 03 19:31:07 2022 Need hold release from management interface, waiting...
Thu Nov 03 19:31:07 2022 MANAGEMENT: Client connected from [AF_INET]127.0.0.1:25340
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'state on'
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'log all on'
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'echo all on'
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'bytecount 5'
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'hold off'
Thu Nov 03 19:31:07 2022 MANAGEMENT: CMD 'hold release'
Thu Nov 03 19:31:07 2022 MANAGEMENT: >STATE:1667496667,RESOLVE,,,,,,
Thu Nov 03 19:31:07 2022 TCP/UDP: Preserving recently used remote address: [AF_INET]213.28.227.197:1194
Thu Nov 03 19:31:07 2022 Socket Buffers: R=[65536->65536] S=[65536->65536]
Thu Nov 03 19:31:07 2022 Attempting to establish TCP connection with [AF_INET]213.28.227.197:1194 [nonblock]
Thu Nov 03 19:31:07 2022 MANAGEMENT: >STATE:1667496667,TCP_CONNECT,,,,,,
Thu Nov 03 19:31:53 2022 SIGTERM[hard,init_instance] received, process exiting
Thu Nov 03 19:31:53 2022 MANAGEMENT: >STATE:1667496713,EXITING,init_instance,,,,,

 

Maybe I need to buy a direct public IP address from the operator??

 

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#3
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Re:The VPN connection does not open
2022-11-04 01:12:27

  @Lajunpe 

 

Hi, if there are indeed two NATs in front of MR400, the Internet IP address displayed on MR400 web interface is private IP address, the front NAT will protect the local network including the VPN Server on the MR400, so other device in external network will not be able to connect the VPN Server until you open the related port for the VPN server on the front NAT products.

 

If you are using 3G/4G Router mode with a SIM card inserted, the front NATs are on your ISP side, so you are unable to open the ports, in that case, you need to contact the ISP to see if they could assign you public IP address directly so that there is no other NAT in front of the MR400.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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Re:The VPN connection does not open
2022-11-04 13:43:57

  @Lajunpe 

Thank you,
I took a public IP address from the operator.
It costs 2 Euros per month. Not bad.

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Re:The VPN connection does not open
2022-11-07 06:34:11

  @Lajunpe 

 

Hi, thank you very much for the update.

Is the VPN server working fine after you gets public IP address from the operator?

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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Re:The VPN connection does not open
2022-11-07 11:44:54

  @Lajunpe 

Unfortunately I won't be able to test until next week.
I'll post info after that

Pentti

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#7
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Re:The VPN connection does not open
2022-11-16 13:16:50

  @Lajunpe 

Hi,

Now I have a working system. Public IP solved the problem.

Thanks for the advice!

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#8
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Re:The VPN connection does not open
2022-11-17 09:48:48

  @Lajunpe 

 

Thanks a lot for the update! Glad to hear that it works fine now.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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