after (automatic) firmware update i cannot access my cameras remotely.

When i detected it i installed another brand new C220 which prompted me to uppdate firmware which i did, and that one now says it can only be controlled locally.

The other two C220 does not say that but cannot be controlled or accessed remotely, only locally.

I am sure it is a firmware issue because i just installed another brand new C220 emporarily using an access point that does not have internet access (so the camera could not autoupdate firmware) and directly unticked "automatic update", then i reset wifi and configured it for my internet wifi network and it works remotely and locally.

The working C220 camera has version 1.0.2 (i cannot proved more detail because it only prompt me to update and does not show the whole version information)

I aslso have a C210 firmware 1.2.3 that works but that also prompt me to update to 1.2.5 but i dont dare to do that for fear of loosing it.

In summary, i have three C220 with latest firmware that cannot be accessed remotely, one C210 and two C220 with older firmware that CAN be accessed remotely, at the same location using the same wifi network.

How to solve this?