@Solla-topee While waiting a new update appeared which I installed and it seems to have solved the problem. My two newly installed cameras had an older update waiting, I will try and see what happens...

@Solla-topee Thank you for the reply. I cannot change my routers DNS, it is fixed at 8.8.8.8 (i have very little control of it, basically all i can set is wifi channel, SSID and password). The router...

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...