Unable to connect OpenVPN client to OpenVPN server (router)

Unable to connect OpenVPN client to OpenVPN server (router)

Unable to connect OpenVPN client to OpenVPN server (router)
Unable to connect OpenVPN client to OpenVPN server (router)
17 hours ago - last edited 17 hours ago
Model: Archer GX90  
Hardware Version: V1
Firmware Version: 1.1.5 Build 20240428 rel.48921(4155)

 

Hi,

 

I cannot connect to the OpenVPN Server on my router (udp/port 1194); I generated the configuration file and tested the connection using my OpenVPN client. It seems like port 1194 is blocked. I thought the port was automatically whitelisted, so I enabled Port Triggering and had the same result :-/.

 

Do you have any idea what else to try? This router has a few options that may block access to port 1194.

 

BTW I am using DDNS.

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#1
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3 Reply
Re:Unable to connect OpenVPN client to OpenVPN server (router)
8 hours ago

Hi  @h2ogeek,

If you're experiencing problems with the VPN Server/Client feature, we recommend reviewing the following troubleshooting articles for assistance:
For VPN Server issue on TP-Link Router: https://community.tp-link.com/en/home/forum/topic/653446
For VPN Client issue on TP-Link Router: https://community.tp-link.com/en/home/forum/topic/270268
These articles cover common issues related to VPN configuration, including:
   1) Remote phone/laptop fails to connect VPN Server.
   2) Remote devices connect to the VPN Server successfully but cannot access internet anymore.
   3) Remote devices connect to the VPN Server successfully but cannot access local resource of the VPN Server.
   4) VPN Client on Wi-Fi Router is not working.
 

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Re:Unable to connect OpenVPN client to OpenVPN server (router)
8 hours ago - last edited 7 hours ago

 Hi @Joseph-TP ,



Thank you for your reply! I checked the URL that you provided, and I double-checked everything. everything is okay according to the VPN Server Is Not Working Properly on TP-Link Wi-Fi Routers document 

 

Step 1:

IP Address: 100.100.X.X -> OK

 

Step 2:

DDNS working 

* Tested that my domain name IP is equal to my public IP    -> PASS

* nslookup mydomain-> The address matches my public IP -> PASS

* I tried using UDP and TCP, and the result was the same.    -> FAIL

* I know that still blocked because I tried telnet mydomain 1194 -> I got Operation timed out
telnet: Unable to connect to remote host

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Re:Unable to connect OpenVPN client to OpenVPN server (router)
4 hours ago

h2ogeek wrote

 

Step 1:

IP Address: 100.100.X.X -> OK

 

  @h2ogeek 

 

Hi,

 

This is NOT a public IP address. The range 100.64.0.0 – 100.127.255.255 is being used for CGNAT.

 

That is the reason why you cannot reach your VPN server via the Internet.

 

Please follow the suggestions in the link that @Joseph-TP posted earlier.

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