I was watching a game on Medieval siege and this happened. It started already 10 minutes before I started watching and it run fast forwarded and exactly I reach the spectator delay, it stuck and I seen for the cause, it shown up I lost connection. Then I have restarted voobly and now the same game was running at 15 minutes and again it run fast forwarded and the same repeated as soon as I reach the current situation the whole voobly is getting out of connection. It repeated for the third time too.

Could anyone help me out with such a situation.

You appear to be using a data connection such as 3G/4G/5G instead of a stable internet connection such as Cable or DSL. Your IP address keeps changing, which will disconnect you from running games and the Voobly client. Since the game is based on peer to peer, it is required that your IP does not change every X minutes.

thank you.

If you have no other choice than using a data connection provided by your phone, you should consider using a VPN which is however not recommended. Please also keep in mind, that this increases the consumption of traffic by the factor of 5, which can result in unexpected fees or traffic limitation.