There is something I do not understand and it drives me crazy!
I have three cheap PTZ Outdoor WLAN camera like the one in the photo. (They are actually from different brands but they are all the same).
Initially I set them up with the iC-See Pro App on my Smartphone and later I connected them ONVIF with my recording server.
They have fixed IPs delivered from my router's DHCP.
ONVIF Device Manage could find all three of them, could connect to them (without password
), so far so good!
Since a couple weeks, I lost connection with two of the three cameras
I can neither ping them, nor connect to them via IP, nor ONVIF Device Manager.
However, when I use iC-See Pro, it will find all three cameras, I can connect to any of the "non-accessible" two, I get the message "RPS video open success" and I can use them without problems.
How can it be that while they are not accessible via IP, I can still use them with iC-See Pro?
It may have something to do, I changed my network's subnet mask to 255.255.252.0
(I did not change the IP addresses of the cameras though).
Interestingly , the one camera I still have access to via IP, still claims to have subnet mask to 255.255.255.0 (see pic).
But then I noticed, the "Network Mode" is different among the three CAMs:
The one I can access has network mode IP while the other two RPS
(see pic)
So here come the questions:
Many thanks for any help and best wishes for a healthy and successful New Year 2021 !
I have three cheap PTZ Outdoor WLAN camera like the one in the photo. (They are actually from different brands but they are all the same).
Initially I set them up with the iC-See Pro App on my Smartphone and later I connected them ONVIF with my recording server.
They have fixed IPs delivered from my router's DHCP.
ONVIF Device Manage could find all three of them, could connect to them (without password

Since a couple weeks, I lost connection with two of the three cameras

I can neither ping them, nor connect to them via IP, nor ONVIF Device Manager.
However, when I use iC-See Pro, it will find all three cameras, I can connect to any of the "non-accessible" two, I get the message "RPS video open success" and I can use them without problems.
How can it be that while they are not accessible via IP, I can still use them with iC-See Pro?
It may have something to do, I changed my network's subnet mask to 255.255.252.0
(I did not change the IP addresses of the cameras though).
Interestingly , the one camera I still have access to via IP, still claims to have subnet mask to 255.255.255.0 (see pic).
But then I noticed, the "Network Mode" is different among the three CAMs:
The one I can access has network mode IP while the other two RPS

So here come the questions:
- Why can I not connect to the two CAMs with IP?
- Is there a possibility for the ONVIF Device Manager connect to the two cameras using RPS?
- How do I switch the mode from RPS back to IP ???
Many thanks for any help and best wishes for a healthy and successful New Year 2021 !