I use CCR 1009 router and distribute wireless through wifi access points.
My problem is mobile devices such as phone or tablet always lost wifi connection when they are in standby mode.
If they have been using, they will not lost wifi. But when not use and go into standby mode the wifi will lost connection.
This situation is not found in home wifi router, because when devices are in standby, they still connect the wifi and ready for incoming communication.
Could anyone please help to solve this problem ?
Increase your dhcp lease to 8-12h. There is a bug in the iOS dhcp.
https://www.net.princeton.edu/apple-ios/ios41-allows-lease-to-expire-keeps-using-IP-address.html
I confirm that this issue does not come from dhcp.
All devices not only iOS have the same problem.
Any ideas ? Please help and share.