[XDA Assist] bamdaschmu:
Hi,

I don't know exactly where to look for help. Because, it could be a CM13 problem, a Oneplus One problem, a Titanium Backup Problem or a general Marshmallow problem. Please guide me in the right direction, where I could ask! (Or if you know the answer, I would be even happier).

///(writing this after everything following:)Wow, I really wrote A LOT. tl;dr: I can’t edit/delete my wifi connections on Marshmallow. I think, it’s because a new rule of Android 6, which prevents other apps (in my case my network settings) to change stuff (See paragraph 6). I have 2 assumptions (paragraph 7+8) but I still don’t know, how to change/delete my wifi connections. help!///

I also want to say, that I already asked in some german boards (hence I'm from germany), where I was immediately dismissed, because quote: "It's your fault if you install nightlies. You don't get help, if you are so stupid". Well I can't understand this point of view to some extend, but I still don't know, if its really a "nightly problem" or one of the other suspects. Please don't dismiss me directly. If you have a clue, please point it out.

Please also note, that I have under 10 posts, which prevent me to post links. I really don't want to spam and I hope I don't break any rules, but I included links to pictures in my posts. Not to spam, but because I think it's helps understanding my problem.

So lets get to it:

The used status: I was on the official CM12.1 nightly and have done updates 1-2 times a week. At university I use a TTLS/PAP connection with a certificate and my credentials (eduroam -> eduroam. org/index.php?p=faq#technology). At home and work I used a normal WPA2 connection.

What I did: I updated yesterday to official CM13 nightly with OpenGapps for Android 6. Not via the updater, but via Recovery. I did a full system backup beforehand with Titanium Backup. Booted into recovery (TWRP), wiped the usual stuff (factory reset + system partition), installed CM13 and OGapps, rebooted and setup the phone. Then I did a full restore (all data + missing apps, cause I didn't want titanium to overwrite the new Gapps). Everything worked out great. Phone runs great, my daily apps run great, no crash so far. Quite nice for such an early nightly.

Now my problem: I went to my university library 2 hours ago to work on some things in the evening. My phone is was not able to connect to the wifi (authentication problems). Than I tried to edit the network and saw, that the settings were lost (as well as the certificate). I downloaded and installed the certificate and set everything up in the edit network panel. On save, it just gave me the message: Couldn't save network (imgur. com/fBDctvE.png). So I tried to delete the network, to set it up from scratch, but I can't delete it (imgur. com/2I29bSR.png).

I did some research I found people who had (It looked like at that moment) the same problem, of not be able to edit or delete a wifi connection. So one pointed out, to settings -> backup and restore -> and reset all network connections to factory state. I did that, but all the saved connections are still there. It can't delete them. Then somebody else with such a problem, said, he couldn't delete his network setups, but with an external app (WiFi Manager) he was able to delete the networks.

Which brings me to my current point in time: I tried the app, it was not able to edit or remove my networks, but it gave me one valuable information, which is maybe the key to my problem: imgur.com/ t2JmYml.png . It says, that: "Under Android 6 only the application, which created the network, is able to edit and to remove it."

Now I have 2 assumptions:

1) It’s a problem because I restored my data via Titanium Backup. If I look at my saved networks, than I also see, that the „owner app“ is now indeed Titanium Backup (imgur. com/I44ys5s.png) and NOT network settings. Which, if I understood correctly would prohibit network settings to change or delete networks, because of: "Under Android 6 only the application, which created the network, is able to edit and to remove it.“

2) It has nothing to do with Titanium, but instead is a problem, because the networks were created with the older version of Network settings (Gapps for Lollipop). And I did a fresh install of Gapps for Marshmallow. So maybe „new“ Network settings thinks, that it didn’t create the networks, but instead they were created by „old“ Network settings.

Either way, thats it. I really don’t want to install Lollipop again just to delete the networks and than again install Marshmallow and recover everything and setup stuff.

Did I miss something? Do you have different ideas, what I could try? I have root and busybox installed, could I maybe delete the networks „manually“ via Terminal Emulator, or could I adb into my phone and search and delete these settings? I was not able to find them, but honestly: Without somebody here pointing me at the right direction, where the network profiles are stored, I would not mess around on my own. Can you help me?

Thank you!!!