Can't send the firmware to the ER605 it only gets to about 4% (is only a 13MB file don't know why it is going so slow) but after about 15 seconds it loses connection and starts adopting so the upload fails

Trying to think what to do as I don's actually have any hard cabled devices/will have to dig out an old laptop to get cabled directly into the ER605 but I don't know even if that is going to work as the OC200 is controlling it/I've just gone directlly to the ER605's webpage but as I've seen before it says it is being controlled by the OC200 and only option is to factory restore... hmmmm not good

  @Xammo I fixed it to go to the gateway (IP of the router), login en reset to factory settings. After te reset, refresh IP of the client (when you have an different IP-range than default) and go to 192.168.0.1. Downgrade firmware and restart. Then go to 192.168.0.1 and restore the IP-range (DHCP-settings + IP of the router) to what you had. Then adopt the router with OC200/Omada. All your settings on the router will be restored.

Downgrade with Omada won't work.

  @Xammo 

You should reset the device and then connect directly to that in standalone mode (webpage i.e. 192.168.0.1)

Maybe you can try the workaround of Tescophil (first page of the topic, 3rd reply)

https://community.tp-link.com/en/business/forum/topic/595660?replyId=1168812

Well that was fun (not)...

Yeh I was thinking that was what I needed to do but not having any device capable of being hard cabled in and working off the WiFi was more my concern but yeh static ip'd my laptop forgot the ER605 from the OC200 went to the ER605 webpage (now released from the OC200 but not reset) reset it downgraded the firmware adopted it and watched the OC200 configure/adopt/configure a couple of times and thankfully all internet settings/passwords etc. still there so no config to do just sit and wait/hope it all came back up which it has and thankfully looks stable

Many thanks for the help/assurance there much appreciated - now to get that scheduled update in the OC200 turned off! (I manually did this upgrade but yeh I won't be allowing auto upgrades for any of the Omada devices anymore/wasn't expecting officially released firmware to cause such a problem... beta yeh ok but official... hmmm shame as my experience otherwise with the Omada kit/setup has been nothing short of excellent I've gotta say)

Cheers and thanks again

Xammo

Has anyone had problems with a fixed IP on the controller?
Then I don't mean the IP that you reserve on the dhcp server, but the IP that is physically set on the controller?

Now I've tried a bit and this router upgrade is one of the better ones from tp-link, I haven't had any problems at all, I've upgraded router on local site and router on remote site on the same controller, I've also upgraded ER605v2 on OC200 and lunux controller. everything has worked as it should, that's why I'm surprised by all the problems that are reported here on the forum.

I have tested ER605v2 ver 2.1.0 on

all controllers have fixed ip configured on controller not via reserved ip on DHCP server

Windows controller ver 5.8.4
OC200v1 ver 5.7.4
Linux controller ver 5.7.4
everything works perfectly for me so its very strange.

I don't have any reservations as I have my DHCP range set 192.168.0.21 - 192.168.0.254

All Omada devices are static IP'd

ER605 - 192.168.0.1

OC200 - 192.168.0.2

TL-SG2210P - 192.168.0.3

Then all the access points 192.168.0.11 - 192.168.0.18

I can't remember if I turned the below auto Refresh IP: for the OC200 on or if that was on by default but also cannot honestly say I understand what it means that it will automatically change with the system IP (could that have anything to do with the problems maybe if you are thinking along the lines of OC200 being statically IP'd?)

Otherwise my ER605 info ->

And OC200 ->

  @shberge strange that some people have no problems. After the factory reset I did a downgrade, set the right range for DHCP back (IP router 192.168.2.254 / DHCP range 192.168.2.1-192.168.2.250) and I had to adopt the router again, what works fine. The same way I've tried with the new firmware, but it ends in a loop. Tried multiple times. The Linux controller had not a fixed IP, fixed IP was set in the router (192.168.2.200 - with auto refresh IP turned on in the controller). Reboots of the controller makes no different.

After de upgrade to the new firmware my network works fine. Only the controller keeps adopting every 2 minutes. Some functions doesn't work or for a short time when the status is 'connected'.

Also just to add I've recently started running an E3372 USB Modem as a second WAN on the ER605 if that might possibly have anything to do with anything

Other than constantly getting disconnected from a VPS I was working on bringing the issue to my attention I noticed the chart on the OC200 dashboard wasn't reporting properly even though I was intermittently connected

  @SuperUserOne 

I had the same issue.  Also -  IPV6 does not work,  Port forwarding does not work and my controller just keeps looping trying to adopt my ER605.   I factory reset then downgraded the firmware to 2.0.1 and everything is good.    I did try to reinstall the 2.1.0 with the same results.   

Please patch this ASAP.  

  @SuperUserOne 

Same issue here

 ER-605 v2

Just after downgrading to 2.0.1 the router was adopted and stop loop