Client error: commonStart: setControlConn failed: setControlConn: handshake timeout #26
Description
设置了内网穿透，实时日志输出发现一直循环输出错误：
2026-03-25 13:09:13.468 INFO Client restart: client://********?dns=5m0s&sni=&lbs=0&min=64&mode=2&dial=auto&read=0s&rate=0&slot=65536&proxy=0&block=0¬cp=0&noudp=0
2026-03-25 13:09:13.491 INFO Getting tunnel pool ready...
2026-03-25 13:09:13.491 INFO Loading tunnel config: FLOW=-|MAX=1024|TLS=1|TYPE=0
2026-03-25 13:09:18.520 ERROR Client error: commonStart: setControlConn failed: setControlConn: handshake timeout
2026-03-25 13:09:18.520 DEBUG Tunnel connection closed: pool active 0
2026-03-25 13:09:21.521 INFO Pending tunnel handshake...
服务器和客户端都是IPV6的机器，同步实例都会挂。别外两台IPV4的没有这个问题。