@NZGASMAN You will need to run your decos in access point mode then see the link below https://www.tp-link.com/us/support/faq/1842/

@Ed76 You can reset all of your decos by pressing the button on the bottom of each deco you own for 2 seconds but you will have to then readd them all using the deco app. You will also have to...

@naderm If you haven't already done so could you please refer to this link to submit the Deco APP log. How to submit Deco APP log Thank you @David-TP

@PaulWh If you haven't already done so could you please refer to this link to submit the Deco APP log. How to submit Deco APP log Thank you

@CU2989 You can find the instructions on how to downgrade your firmware here

@mogplus8 Please see if the following post helps. https://community.tp-link.com/us/home/kb/detail/412864 Make sure to check the links under the "Recommended Troubleshooting" section as well