I have a weird issue with my mxq (s805, 1g/8g, all black version, le 9.2.8 installed on internal rom). While it was at my possession, it had some wifi issues that I mentioned, but things improved after the upgrade to 9.2.8 a few weeks ago to the point that a stable connection was available almost every time.
And a few days ago, I gifted it to a family of 3 kids so as to keep them busy while the parents are at work.
Today is the day that the parents would put it to work. So, with my guidance (go there, select this etc) they tried to connect it to the home's wireless network. They entered the key, pressed finish and since then EVERY wireless network under connections has dissapeared!
Neither rebooting the box helped, nor did disabling and reenabling the wireless connection. Apart from their home's wireless network, there are a couple more from other homes near them.
The 2 cell phones they have can detect the home's wifi (and the ones from the neighborhood) and are connected to it with no issues, so I assume the router is not to blame.
Any ideas about it? One thing that is relatively easy to do is to delete /storage/.cache/connman/ via kodi's file manager, but will it help? The family is not tech savvy and I am miles away so as to visit them and check it myself.