@jhg6308 I have said before what I think is wrong, but it seems to me that you are very fixated on the controller problem or EAP670 being the problem and are not willing to look at other sources of...

@markie83 it probably comes from the fact that the mobile operator uses cgnat and has blocked the necessary ports for L2TP. I have had problems with this many times so I no longer use L2TP, Wireguard...

@vijay2801 here is a link to the Omada documentation, everything is not so well described but much is self-explanatory. starting on page 277...

@vijay2801 this is automatic backup, you have quite a few different options for automatic backup on Omada. this is the only way to backup Omada automatically, I use SFTP and save to a remote linux...

@vijay2801 you have a bunch of options to take an automatic backup of the controller, go to global and Maintenance.

@Sortius ER706W have DPI and IPS/IDS, what firmware do you use? I use this firmware https://community.tp-link.com/en/business/forum/topic/676186