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PPPoE cannot successful connect to ISP with custom settings

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PPPoE cannot successful connect to ISP with custom settings

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
PPPoE cannot successful connect to ISP with custom settings
PPPoE cannot successful connect to ISP with custom settings
2024-08-14 23:58:46 - last edited 2024-09-06 01:19:25
Tags: #Network Connectivity
Model: Archer GE800  
Hardware Version: V1
Firmware Version: 1.1.3 Build 20240528 rel.85215(5553)

PPPoE cannot successful connect to ISP with custom settings

After login to the configuration page, goto Advanced->Network->Internet->Advanced Settings, at "DNS Address" selection choose "Use the Followwing DNS Addresses", input custom DNSs value and click safe. After reboot, the router fail to connect to ISP and establish inter connection.

If you revert back "DNS Address" selection to "Get Dynamically from ISP" then safe and reboot. The router can connect to ISP and establish internet connection.

 

This behavior is weird not suppose to be like that.

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#1
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1 Accepted Solution
Re:PPPoE cannot successful connect to ISP with custom settings-Solution
2024-09-04 12:47:43 - last edited 2024-09-06 01:19:25

  @Joseph-TP 

Confirmed ISP problem! TM Unifi start to block well known DNS (53/DoH/Dot) .

 

Refer below list:

 

Google = blocked

 

Cloudflare

1.1.1.1 = blocked

1.1.1.2 = blocked

 

Opendns

208.67.222.222 = blocked

 

Quad9

9.9.9.9 = blocked

 

Adguard

94.140.14.14 = blocked

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Re:PPPoE cannot successful connect to ISP with custom settings
2024-08-15 06:25:48

  @Lipfeng 

Hi

 

What DNS do you want to change? It is recommended that the WAN DNS and the router’s LAN are not in the same subnet, otherwise the router may not work properly.

 

Warm regards.
 

Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE550 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, ECO Mode, and More Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
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Re:PPPoE cannot successful connect to ISP with custom settings
2024-08-15 14:40:57

Joseph-TP wrote

  @Lipfeng 

Hi

 

What DNS do you want to change? It is recommended that the WAN DNS and the router’s LAN are not in the same subnet, otherwise the router may not work properly.

 

Warm regards.
 

  @Joseph-TP 

Thanks a lot for helping.

 

I want to replace with ad-guard DNS (94.140.14.14 and 94.140.15.15), there are not in the same subnet.

My router subnet is factory default setting 255.255.255.0

 

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#3
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Re:PPPoE cannot successful connect to ISP with custom settings
2024-08-16 10:33:08

  @Lipfeng 

Hi

 

It is recommended that you consult your internet service provider to confirm whether they have restrictions on ad-guard DNS (94.140.14.14 and 94.140.15.15).
At the same time, you could test primary DNS 8.8.8.8 and secondary DNS 8.8.4.4.

Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE550 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, ECO Mode, and More Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul
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#4
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Re:PPPoE cannot successful connect to ISP with custom settings-Solution
2024-09-04 12:47:43 - last edited 2024-09-06 01:19:25

  @Joseph-TP 

Confirmed ISP problem! TM Unifi start to block well known DNS (53/DoH/Dot) .

 

Refer below list:

 

Google = blocked

 

Cloudflare

1.1.1.1 = blocked

1.1.1.2 = blocked

 

Opendns

208.67.222.222 = blocked

 

Quad9

9.9.9.9 = blocked

 

Adguard

94.140.14.14 = blocked

Recommended Solution
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#5
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