bad connection / internet (mine)
VS.
the other person`s
I keep losing connection.
My connection is unstable.
The connection is lagging.
I'm getting a lot of lag.
My connection is a bit dodgy. — casual, especially British English
The connection is bad on my end.
I'm having connection issues. — very natural/professional
My video keeps freezing.
My audio keeps cutting out.
You're breaking up. → when the other person's audio is difficult to hear
Last changed8 days ago