I sometimes encounter internet interruptions, and the game would briefly disconnect, but it never reconnects, and I had to press Exit and restart the game, which takes at least 2-3 minutes, and it happens sometimes 4 - 5 times a day...

Would be nice it reconnects itself without closing down.

If it is just a lag in your internet connection, it does reconnect.
Maybe it does not reconnect for you, because your modem itself reconnects, and that may cause your IP address to change (if it is not a fixed IP), thus the game "loses sight" of your connection (because different IP) and cannot reconect without logging in again.