How do you downgrade from v2.9. I installed it this morning and am having some major problems, (network doesn’t work)
i think, 2.8 would not solve your problem.
May be describe more detailed, what configuration does not work.
It looks like the entire network has stopped working. I just downgraded to 2.8.28 but the back-up I have did not re-set-up the firewall.
What I have is an AP going to the MT pc with RouterOS on it using the Hotspot feature. but the firewall setting have to be re-set which I am not that good at.
Yes, you should reconfigure HotSpot, but firewall rules left correct after upgrade.