@David-TP 

Decos have been running without drops in the past few days, so that worked fine.

As I understand the issue is not firware fixable, right? Don't think the warranty is still up. will check with the shop. Anyway, works for a temporary fix, but considering the whole situation, the Decos won't be an option anymore, unfortunately. 

Thank you for your help, things are working again and that was most important here.

Maybe also include this fix somewhere to be easily found.

Have a nice one

  @GKVDR 
 

My be65 is experiencing the same issue, and I'm still looking for the cause. Could you tell me how you resolved it?

daemon.notice pppd[14101]: len < 0
daemon.notice netifd: internet (14101): len < 0

  @Huang666 

Hi!

Wouldn't call it a fix, but it worked for me. The xe75 have 3 eth slots on the back. I was advised to connect the main deco eth cable to the middle slot, no. 2 in my case. I don't know if it will stop working if i use any of the other slots, but i'm not changing anything until a better solution.

Also, maybe usefull. I switched the decos to be APs and got a separate router to connect to the internet. Only the main deco is wired to the router. The rest are wireless.

hope it helps

@GKVDR 
@David-TP
I've tried many methods, but I still can't resolve the error message; it continues to appear every ten seconds.

Thu Mar 26 00:10:32 2026 daemon.notice netifd: internet (2766): len < 0
Thu Mar 26 00:10:42 2026 daemon.notice pppd[2766]: len < 0

PPPOE撥接和浮動依然有問題
主 Deco BE65
├─ switch
     ├─ Deco 65

     ├─ Deco 65
     ├─ Deco 25
     ├─ Deco 25

     └─switch
             ├─ Deco 25
             └─ Deco 25