Hi

Just received 2 C200 cameras today and they initially worked fine after setup however, it has been showing a "network unstable" error message. I have checked my internet network and wifi signals etc. and they are all working fine. One of the cameras is sitting right next to the router and I also have TP-Link wifi extention for other devices including the new C200. all other smart devices work perfectly but these two brand new cameras just don't work. when I read the comments here and I realized this is a common issue for Tapo cameras. This is really disappointing. 

Can you please let me know what I can do to make them work or I should just ask for return or refund to save my time?

Thanks.