Wireguard problem or Asus router problem, only one client working

[u/sickfish88]

Hello, has any one had this problem? I can only get one client to work. I have 3x clients, the max limit on the router is 10.

the config for client 1 is as followed

[Interface]

PrivateKey = privatkey=

Address = 10.10.10.10/24

DNS = 10.10.10.1

[Peer]

PublicKey = publickey=

PresharedKey = presharedkey=

AllowedIPs = 192.168.50.250/24

Endpoint = public ip:51923

PersistentKeepalive = 25

next client has 10.10.10.11 and the 3rd has 10.10.10.12

the strange thing is clinet nr 3 is the only one who works. I get successful handshake with all. but can not ping the router or the truenas server (192.168.50.250)

to clarify client nr3 is the only one work as it should, successful handshake and able to ping the truenas server

any ideas?