@David-TP 

Good morning,

1. I submitted the APP log.
2. The satellite Decos are connected through a DLink 1016A switch. I have had no problems with this configuration for almost a year.
3. I have about 75 clients. About 1/3 wired and the 2/3 wireless.
4. I have not tried a total reconfigure from scratch. If I try this how does it work?
5. Once again, absolutely no problems before upgrade from 1.3.1 to 1.4.1

A few more clues -

- Some computers / tablets / phones get "fail to authenticate" or "Connection failed" while network is unstable.

- Others say connected but no internet.

- A few others remain connected with internet

Tech support is telling me to downgrade even though the firmware web page says this is not advisable. Anything I need to know about the ramifications doing this?

Any help you can provide would be great.

Thank you for your reply.

  @JanRekenaar I'll be waiting also. I always check around to see if anyone has issues, so will wait till this one seems to be resolved.

  @Race545 About a week ago I power cycled my Decos once again. I have been stable since then. Don't know why but tech support did ask for my user ID. Could they have changed something in my system? Don't know.

  @NuklearNik I am curious why the want your UserID. That seems overkill, as they have your AppLog aswell in which all IP adresses, MAC addresses etc are being listed. They can find your system remotely that wat aswell. 
 

Have you been told what was in the AppLog? 
 

regards 

  @JanRekenaar I am having issues now myself. I just updated to 1.4.1 last night and my system has been down for about 12 hours now. Did you find a resolution yet? 

  @Higherlearning Try power cycling the satellite Decos as well as the main Deco. After power cycling it took 30 minutes to and hour for the system to settle down and stabilize.

I installed the firmware update 1.4.1 Build 20231122 Rel 40485 last night. My setup is

ISP->Main->Netgear GS108 Switch->Satellite  

I've lost ethernet backhaul capability between the main and the satellite. If ethernet is connected then wifi of the satellite doesn't work. None of my wired connections in the switch show up on Main, so I've lost all wired connections through the switch.

I've reset/rebooted unplugged/plugged all connections and power. Nothing has helped.

I need a fix or instructions on how to roll back this upgrade. Everything was working great until this upgrade.

***Adding some additional debugging info:   With the first Main Deco I found that the middle port was not working (I am using all 3 ports: WAN connection, external network disk, and unmangaged switch), so I swapped Decos and assigned a Satellite to be the new Main. On the new Main, the bottom port did not work. I've got everything back up and working as long as I don't use whichever port seems to have been messed up by the new firmware upgrade (disk is now connected to the switch instead of directly to the Deco). If you hook up anything to the messed up port it causes all kinds of issues. 

  @red3dcom Last night the firmware was updated when everything rebooted no access to the Internet. Tried rebooting several times no luck some units would blink red some would be green random issues. Did a factory reboot reset everything set it all up everything was working as soon as you use the app to reset the deck goes everything becomes a mess and no Internet. I have IP addresses DNS everything looks good just no connection to the Internet. I have reset and defaulted my modem. It seems to be the only way to get the system back up after this problem after just simply rebooting your Deco is to power everything down then power up the five expansion X55 and then when they come up power up the main deco when that finally comes up reboot the modem. This is the only procedure that restores internet connectivity after the firmware update.

Agree things do seem to take a very long time to come up.

I have Tmobile internet and 6 X55 Decos all was good for years and years until this FW update.

BTW all my Decos are connected via wired switch so it is not weak connections.