Issues with VST connect pro


the vst connect was working fine till yesterday. Today when i tried connected to my artist on their vst connect performer. It was just not stable. Every 2 minutes it was getting disconnected.
i am using the latest version that is 4.0.44 and on the other side the performer is also using the same version.
We both have decent speed
studio side being 20 mbps download and 10 mbps upload
artist side the speed was 40 mbps download and 10 mbps upload.

i don’t think the speed would be an issue

sometimes this works very smoothly but sometimes it gives a lot of trouble…

any suggestions???