TG3482G router http traffic stopping every morning at 00:30 until router reboot

It happens every couple of days sometimes daily.

Http traffic is not working,  pinging internet  is ok .

I had a PRTG monitoring going and it shows that http service stops at 00:30 , it seems that after some kind of daily update the service is affected. After reboot everything is back to normal until next day.

Sometimes you can start a speed test using a phone app and it shows download crawling at 0.1 Kbps but upload working ok at 40 Mbps.