I changed the DECO from wifi router to AP mode and it seems to have resolved this issue. Keep fingers crossed.

@AllenAnderson I changed the wifi router to AP mode which seems to resolved the issue.

@David-TP This is a thread I started to discuss this issue. https://community.tp-link.com/en/business/forum/topic/720202?page=1 DECO worked as wireless router. The failover works fine. My issue is...

They locked the old thread for this discussion. I am starting a new sthread to continue. old post: https://community.tp-link.com/en/business/forum/topic/608700 I have exactly the same issue....

@David-TP I used ER605 to set up failover. But it does not work very well. I started to have intermittent issues with my main ISP.

@MBMoreira I need this feature.