timeout on Iphone

Unity Engine
1

For some clients I’m getting timeout and then client getting disconnected .
It looks that the issue happening on iphone only.

Log: connection {1} has been disconnected by timeout; address {XXXXX:45003}

UNet Client Disconnect Error: Timeout

UnityEngine.Networking.NetworkClient:UpdateClients()

UnityEngine.Networking.NetworkIdentity:UNetStaticUpdate()

What should be the solution?
Is this port issue? should I use different port? or increase waiting tine. how can u I crease it

2

Any guideline how to handle or troubleshoot timeout issue. I’m using NetworkClient and NetworkServer. and most of the Client getting timeout. where can I set the timeout time?