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Powerline Adapter causing STP blockage

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Powerline Adapter causing STP blockage

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Powerline Adapter causing STP blockage
Powerline Adapter causing STP blockage
2025-05-03 20:49:49 - last edited 2025-05-30 09:40:56
Tags: #Network Connectivity
Model: TL-PA7017P  
Hardware Version:
Firmware Version:

Hi All, 

 

I got a pair of TL-PA7019P Powerline adapters. Got them paired fairly quickly, but as soon as I plug in a network cable, things are getting difficult. On one end I connect to my USW Pro Max 16 POE, on the other end I connect to an Unifi AC Mesh. Once the connection is established, the port is immediately blocked by STP due to a detected loop. If I disable STP for that port weired outages start happening all over my network. Furthermore, there is no chance whatsoever to configure the adapters, since they just don't show up on either the iOS or macOS app. 

 

Anyone can help me set this up properly? Otherwise the pack is just going back to the store on Monday... 

 

Thanks! 

 

Best,

BVC

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Re:Powerline Adapter causing STP blockage-Solution
2025-05-08 08:32:28 - last edited 2025-05-30 09:40:56

Hi@BVC987,

Thank you for contacting our community.

May I know is your network topology like this:

Unifi AC Mesh --cable-- Powerline adapter >>>Electric Road<<< powerline extender --cable-- USW Pro Max 16 POE

If yes, could you remove the switch for a comparison?

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience 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:Powerline Adapter causing STP blockage
2025-05-03 20:57:03
Just confirmed that it's not caused by the AP - a plain laptop has the same effect.
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#2
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Re:Powerline Adapter causing STP blockage-Solution
2025-05-08 08:32:28 - last edited 2025-05-30 09:40:56

Hi@BVC987,

Thank you for contacting our community.

May I know is your network topology like this:

Unifi AC Mesh --cable-- Powerline adapter >>>Electric Road<<< powerline extender --cable-- USW Pro Max 16 POE

If yes, could you remove the switch for a comparison?

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience 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.
Recommended Solution
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