Friends cant play together

Trying to play with friends for simple terms there’s 3 friends A B and C

A can host, B and C can join however they CANNOT join each other

If B hosts A can join, however C can’t even join saying invite times out

If C hosts same problem. A can join however B cannot even join C

A is on a different ping B and C are on the same ping

What do you mean with Ping?

Which systems do you play on? PC Steam, PC Xbox, Xbox or playstation?

Probably a NAT issue…
Check your Wifi settings and look for the
NAT-Type.
If its on open its good.
Moderate means you can join but not host.
Strict means you can talk/write to others but thats it, no playing together

All three are on pc steam, and ping I mean like servers ig 2 are in the same region then one isnt not sure if that matters tho

Check your Steam settings maybe? These 2 settings. 1st can be lowered if you have problem finding servers. 2nd if your all in each others friends list helps a lot too.