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PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working

PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working

PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working
PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working
Thursday
Tags: #Network Connectivity #peernotresponding
Model: Archer AX53  
Hardware Version: V1
Firmware Version: Archer AX53(BR)_V1_1.4.4 Build 20250603

My internet stops working every few minutes and starts working after a few seconds.

daily I keep getting Internet drop outs. I'm in Brazil and with ISP(REDELOCAL) in PPPoe. When the issues occur, my ONU has 3 green lights, so its ok. Its just my AX53 router, the online light goes to Orange. Happens for about 30 seconds, then comes good. Logs are like below each time. I've had the ISP tech come out and check and say all fine. I've replaced the cable between router and ONU to CAT6.

 

Network Configuration:
• ISP: REDELOCAL(regional network)
• Connection Type: PPPoE
• Location: Brazil

 


Troubleshooting Steps Already Completed:
• Updated firmware to latest version available
• Configured MTU to 1480 (as per ISP requirement)
• Disabled IPv6 completely
• Changed DNS to 1.1.1.1 and 8.8.8.8
• Replaced ethernet cables with new Cat 6 cables
• Factory reset and reconfigured from scratch

- Plugged one old router (Tplink archer c21) in pppoe for more than 24 hours and there was no wan disconnection. 

 

Evidence:
System logs show repeated PPPoE session terminations with the router sending “LCP TermReq” messages and immediately attempting to reconnect. The logs indicate the router is actively disconnecting the PPPoE session rather than losing connection due to external factors.

 

2026-04-23 18:54:18 QoS INFORMAÇÃO [1369] Service start

2026-04-23 18:54:18 QoS INFORMAÇÃO [1369] Function disabled

2026-04-23 18:54:18 QoS INFORMAÇÃO [1369] Service stop

2026-04-23 18:54:17 Gerenciamento Remoto INFORMAÇÃO [1403] Service stop

2026-04-23 18:54:15 NAT INFORMAÇÃO [879] Initialization succeeded

2026-04-23 18:54:15 NAT INFORMAÇÃO [879] Initialization succeeded

2026-04-23 18:54:07 NAT INFORMAÇÃO [3256] Initialization succeeded

2026-04-23 18:54:06 NAT INFORMAÇÃO [3256] Initialization succeeded

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive IPCP ACK

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp send IPCP Req options(addr=100.64.xx.xx;)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive IPCP NAK options(addr=100.64.xx.xx;)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp send IPCP Req options(addr=0.0.0.0;)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive CHAP Success: Welcome.

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp send CHAP Response name=xxxx

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive CHAP Challenge name=REDELOCAL-BRAS04

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive LCP ACK

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp send LCP ACK

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp receive LCP Request options(authtype=PPP_CHAP|type(MD5);mru=1492;magic=0x8d0193d;)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] ppp send LCP Request options(mru=1480;magic=0xfbc79aef;)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe receive PADS sess-id(6825)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe send PADR Host-Uniq(d80)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe receive PADO form AC-MAC(48:a9:xx:xx:xx:xx)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe receive PADO AC-Name(REDELOCAL-BRAS04)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe send PADI Host-Uniq(d80)

2026-04-23 18:54:05 PPP INFORMAÇÃO [3456] pppoe send PADT due to(resending PADI)

2026-04-23 18:54:04 Controlador LED INFORMAÇÃO [1207] Start to run WAN1_OFF

2026-04-23 18:54:04 Controlador LED INFORMAÇÃO [1207] Start to run WAN0_ON

2026-04-23 18:54:04 Controlador LED INFORMAÇÃO [1207] Start to run LAN_ON

2026-04-23 18:54:04 PPP INFORMAÇÃO [396] pppoe send PADT due to(phase disconnect device)

2026-04-23 18:54:04 PPP INFORMAÇÃO [396] ppp send LCP TermReq due to Peer not responding

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#1
3 Reply
Re:PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working
Yesterday

Hello @MauriciusOliver ,

Welcome to our community.

 

This appears to be a configuration anomaly. Please set the "Detect Online Interval" value to 0, then save.

 

Welcome to Community！ Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
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#2
Re:PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working
Yesterday

  @Joseph-TP  

Hello,

Thank you for your suggestion.

I tested setting "Detect Online Interval" to 0 as recommended, but unfortunately the issue still persists.

The behavior is the following:

  • Occasional single packet loss occurs (for example, one "Request timed out" when pinging 8.8.8.8)

  • Immediately after these minor events, the router still drops the PPPoE session and reconnects

  • This leads to periodic disconnections

Important observation:
Using another router (Archer C21) under the exact same conditions, these packet losses do NOT cause PPPoE disconnections, and the connection remains stable.

This confirms that the issue is not the ISP connection itself, but how the AX53 handles PPPoE stability under minor packet loss or jitter.

Additional tests already performed:

  • Detect Online Interval = 0 (no improvement)

  • MTU adjusted (1480 / 1492)

  • Firmware downgrade and upgrade with factory reset

  • Ethernet cable replaced (improved frequency but not resolved)


The AX53 still drops PPPoE sessions too aggressively even with detection disabled.

At this point, the device is not handling normal network conditions as expected.

Thank you.

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#3
Re:PPPOE disconnections / Peer not responding / Router disconnects every few minutes and starts working
12 hours ago

Hello @MauriciusOliver ,

To help you efficiently, I've forwarded your case to the TP-Link support engineers, who will reach out to you using your registered email address later. Please keep an eye on your email inbox for follow-up.

Welcome to Community！ Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click △ Or ☆Recommended Solution if the post/answer helps.
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#4

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