Note4, N910T3, rooted, but otherwise stock Android 5.1.1 from T-Mobile/Samsung's OTA update. Having trouble with WiFi and static IP:
If I use DHCP, WiFi works fine. It'll remember my LAN's WiFi password and auto-connect when available.
However, problems occur when I try to use a static IP (yes, I have reason to want a static IP within my LAN, but the reasons aren't relevant to the issue here):
First (this is the smaller issue, but still goofy and annoying), when I go to "Modify Network Config" Android won't allow me to set a static ip unless I'm already connected to the given network. It'll let me change "IP settings" from "DHCP" to "Static", but the "IP address" setting is greyed out. I have to connect using DHCP first, only then will it allow me to change the "IP address" setting for a static IP.
But here's the far bigger problem: Once I have worked around that issue and actually set a static IP, the next time I leave the network and come back (or just turn WiFi off and back on) it no longer auto-connects. When I try to manually connect, it's forgotten both the WiFi password and the static IP setting.
How can I make Android remember WiFi network settings AND use a static IP for a given connection?
If I use DHCP, WiFi works fine. It'll remember my LAN's WiFi password and auto-connect when available.
However, problems occur when I try to use a static IP (yes, I have reason to want a static IP within my LAN, but the reasons aren't relevant to the issue here):
First (this is the smaller issue, but still goofy and annoying), when I go to "Modify Network Config" Android won't allow me to set a static ip unless I'm already connected to the given network. It'll let me change "IP settings" from "DHCP" to "Static", but the "IP address" setting is greyed out. I have to connect using DHCP first, only then will it allow me to change the "IP address" setting for a static IP.
But here's the far bigger problem: Once I have worked around that issue and actually set a static IP, the next time I leave the network and come back (or just turn WiFi off and back on) it no longer auto-connects. When I try to manually connect, it's forgotten both the WiFi password and the static IP setting.
How can I make Android remember WiFi network settings AND use a static IP for a given connection?
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