@Phuripat I've been waiting for this update for quite some time. I applied the update and it applied fine following the normal update process and completed succesfully first time, without any reboot loops at all.  

Phuripat wrote

ATENTIONE:

Today an update version 2.1.0 was released for the ER605 V2, which can be installed directly via the controller.

PLEASE DO NOT UPDATE

 

The update put my ER605 V2 in an endless loop disconnected-adoption-configuration-connected-disconnected.

When connected, all WAN + LAN ports are shown as disabled and the WAN connections as dropped.
Even after hours and through several hardware resets, this behavior does not change.

 

I can use the internet only with my replacement devise ER605 V2 with the old firmware version 2.0.1, now.

  @George-A 

Confirm issue. Had to remove the router from my omada setup and start to use it in the standalone mode

  @Phuripat OC200 V2.0  with controller version 5.7.6

Phuripat wrote

  @George-A Which controller are you using? The software controller, OC200 or OC300? Which version of it?

  @George-A 

ER605v2 Router disconnecting and looping after upgrade

I also have a ER605v2 in a test environment and that upgraded without an issue

Both use seperate OC200's which are up to date.

I thought if my test router upgraded OK then the production one would be fine

It wasn't.

 

  @Phuripat 

Very helpful.

Thank you!

  @BravoMike31 

Back to the original topic. I just started getting "Large Ping attack from 192.168.1.xxx and dropped 15 packets" about 12 times per day from 2 ip addresses on the lan, both of which are Ring cameras. The timing is not linked to anything that I can tell, no motion alert and not viewing. We have 6 Ring cameras and it only does this on 2 of them. 

  @BravoMike31 Hey

I had the same warnings constantly. As part of an unrelated project, I added a new (separate) DHCP server on the network and started using that. As soon as I did, these large ping attacks went away. I no longer get these warnings.

  @Fae 

It's nice that notifications now show the source IP of ping attacks. 
 

It is NOT NICE that it simply confirms TP-Link has a problem with Ring Cameras and Apple devices. 
 

757 Large ping attack errors in 18 days. 
 

the REAL question is - when are the going fix this?