Galaxy A12, wifi keeps disconnecting.

[C76]

Hi all. After a little help.

I have a galaxy A12 smart phone.

Been working fine for over a year.

Before Christmas took a trip to Spain, and while there wifi wouldn't stay connected to any wifi networks over there. Thinking its just a one off, left it untill I came home. How for a while now, and the same thing.

Tried several wifi networks, all connect but as soon as a try to use it it either fully disconnects or goes to connected with no Internet.

All other devices work fine of the wifi, and phone works fine using mobile data.

Any suggestions?

Thanks

[mickyrb]

Have tried the forget network? Or reset network in general management?

[C76]

Yeah tried that. Also tried switching off/on the auto update date time...

[BandOfBrothers]

@C76 

May I suggest to go into Settings, Apps, Wi-Fi,  Storage and Clear Cache and if absolutely necessary Clear Data to see if that helps.

Also with some phone's I've found it helpful to split the frequencies to 2.4ghz and 5ghz and give them names so you know which is which, and then forget the network in the phone and reset up the connection to 2.4ghz and 5ghz which helped in some cases. 

Also changing the wireless channel in the routers settings can help. 

There is a diagnostic tool in your Samsung Members app too.

A Samsung Service Centre can take a look at the phone. 

[C76]

OK, so last night I did a full backup of the phone. Deleted a few app. Thinking I'll do a wipe this morning. But working fine now. I guess deleting one of the apps fixed the issue. Not sure which app. But working. Thanks for all suggestions.

[C76]

May help others. After a few days the backup also failed. I've however found the fault. A12, doesn't have 5G. The WiFi and Bluetooth use the same frequency. Turning off Bluetooth and had zero WiFi issues for a few weeks.
I'm sure there will be a way of using both, but so far I can do without Bluetooth.