Samsung wont stay connected to the Wi-Fi

[Katrina2511]

Had to move my router before Xmas to make way for the tree and even though the router is now back in its original position my android phone will not stay connected to the network?

I've reset the router, I've forgotten the network on my phone, rebooted it and reconnected but the thing will not stay connected! 

My laptop and tablet are fine.. it is just my phone. 

When it loses the network,  it also doesn't find the 4G network either. 

Ant suggestions of anything else I can try?? 

[AnnS]

Try this solution from Samsung Community @Katrina2511 

https://eu.community.samsung.com/t5/galaxy-s20-series/wifi-keeps-disconnecting-and-not-showing-any-a...

A suggestion on this thread is to reset network settings https://eu.community.samsung.com/t5/galaxy-a-series/wifi-disconnecting-a34-a54/td-p/8188544

Although you have just moved the router back to original position try rebooting the router and adding the address using the WiFi password key.

As far as your network connection is concerned try updating the SIM on the network, this is done by completing a network scan. See here Manual Roam 

If you still have issues with our 4G, follow this link Network Issues

As a last resort a factory reset would clear out the bugs, providing everything is backed up your contacts saved to your gmail account, it shouldn't be too tedious.