I have 5 Deco XE75 Pro units. They act only as access points. Main Deco is connected over ethernet to the main TP-Link ER605 router. Rest are all connected wirelessly. They are all running same firmware.

I have been running them for some time and there are a few issues but nothing major right now. Looking at the logs I keep seeing several repeated errors and I would like to know what they are and is there anything I need to do to fix them.

1. daemon.err client_mgmt: element type is not option:3
2. ar_apinfo_collect[line 1107]: AP sync timer expires!
3. daemon.err uhttpd[13975]: iptables: No chain/target/match by that name.
   daemon.err uhttpd[13975]: iptables v1.4.21: Couldn't load target `domain_login_rule':No such file or directory
   daemon.err uhttpd[13975]:
   daemon.err uhttpd[13975]: Try `iptables -h' or 'iptables --help' for more information

Main issue I have right now is that one unit that is connected wirelessly, I can access it (it's a 3D printer with web user interface) but is listed as "Offline" in Deco app and on the web interface of main Deco. I will restart the main Deco to see if that fixes itself. The particular unit has a static IP address and usually shows up but it is the only unit right now not showing up.