Doesn't connect anymore after ~100 connected users

[PayaMousavi]

Hello,
there isn't any limit on server config but when around 100 users get connected new users can't
i think problem is for local ip pool because tun0 is /24 subnet
any help or suggestion?

[randshell]

Can you try "Solution 1" from here?

tun0 is /24 subnet

You can connect 253 clients with this setting

[HenryNe]

Run journalctl -f on the server while a new client can not connect.
There should be an error or any messages for incomming call.

Lock in your syslog. There should find such line:
MULTI: TCP INIT maxclients=1024 maxevents=1028
That says, 1024 clients maximal.

On /24 net with option "topology subnet" can connect 253 clients, exactly from 10.8.0.2 to 10.8.0.254. check ipcalc

Don't confuse with the old and default "topology net30", there it was 64 clients from 10.8.0.5 to 10.8.0.253 with a step of 4.

[MistFenix]

Please anybody can help me with multiple clients? I can't add on my server.conf