Doc connecting monitor and MacBook not working

I have a dock which is expensive and high quality. I b ought to connect my MacBook Air 2019 to my monitor and it works all good. It also connects to power and keyboard and mouse. Recently we bought a new MacBook Air 2023. It does connect mouse and keyboard etc but the monitor is tricky. It sometimes connects. When I disconnect the dock capable from the mac and reconnect it doesn’t. The other mac is perfectly fine and anytime I reconnect and disconnect it is fine. It takes lots of trial again sometimes hours for the other mac to get connected to monitor. It is highly frustrating and it seems a software issue is happening creating comparability between the dock from 2019 and the MacBook 2023. The it colleague of mine updated the dock software and said it works but when I disconnected dock and max with the cable and used my other mac which is perfectly fine and then connected the new mac to the doc again the monitor says: no signal detected.

this has been going on for half a year and such a shame my mac is useless for this please help and thank you