No Signal on 8 of 11 cams - all Wifi, all same Subnet, all work with other Apps

[ltek]

Anyone seen this problem. I have 11 Samsung cams, which have been working for years (BI4 & BI5). Today I rebooted my system (changed some wiring at the switch) and since then BI5 only connects to 3 of the cams, out of 11. The Samsung Android app connects to ALL of the cams. The Ubiquiti controller shows they all have signal connections in the 95% range. All of the cams are connected to the same Access Point, on the same LAN (same subnet), and all have DHCP reservations which have not changed in 2 years.

I updated BI5 today (was 1 version back) and that did not help.

thx for any advice!

[TimG]

It sounds like a network or DHCP issue, what did you change at the switch - and can you restore it to see if the cameras reappear in BI5 ?

I am suspicious of the DHCP reservation method for IP addresses, as it doesn't appear to do exactly the same as adding a static IP directly to the camera, and then ensuring the router DHCP pool is kept away from the static addresses. Can you check what the IP addresses are of the cameras that don't work ?

[ltek]

It sounds like a network or DHCP issue, what did you change at the switch - and can you restore it to see if the cameras reappear in BI5 ?

I am suspicious of the DHCP reservation method for IP addresses, as it doesn't appear to do exactly the same as adding a static IP directly to the camera, and then ensuring the router DHCP pool is kept away from the static addresses. Can you check what the IP addresses are of the cameras that don't work ?

It is working now, not a BI problem. The network was slow, dropped packets, etc. So BI wasn't able to lock onto the streams. I rebooted my HP Switch and it all started working. Never had that problem before, never seen any weirdness like it before.

Sorry for the false alarm.

btw, DHCP reservations work very well and has been the enterprise standard for 30+ years. It also allows for "automatic" rouge device detection (if you have a system that has that functionality). Setting static IP while excluding them from DHCP, creates potential security and admin problems.

[TimG]

Nice to know, thanks for that