出现 i/o deadline reached 后大概率不能重连，需要关闭frpc后重新启动frpc

[gwnpeter]

Bug Description

在frpc 出现 i/o deadline reached 后大概率不能重连，需要关闭frpc后重新启动frpc

frpc Version

0.69.1

frps Version

0.69.1

System Architecture

frps linux/amd64, frpc windows/amd64

Configurations

----------frpc.toml----------------
serverAddr = "fprs.kkk119.top"
serverPort = 7000

auth.token = "xxxxxxxxxxxxxxxxxxxxxxxxx"
transport.heartbeatInterval = 30
transport.heartbeatTimeout = 90
transport.wireProtocol = "v2"

[[proxies]]
name = "imei-tcp"
type = "tcp"
localIP = "127.0.0.1"
localPort = 9000
remotePort = 9000

----------frps.toml----------------
bindAddr = "0.0.0.0"
bindPort = 7000

kcpBindPort = 7000
quicBindPort = 7002

auth.method = "token"
auth.token = "xxxxxxxxxxxxxxxxxxxxxxxxxxx"

webServer.addr = "0.0.0.0"
webServer.port = 7500
webServer.user = "rd02"
webServer.password = "xxxxxxxxxxxxxxxxxxx"

console or real logFile path like ./frps.log

log.to = "/etc/frp/ssl/frps.log"

trace, debug, info, warn, error

log.level = "info"
log.maxDays = 3

disable log colors when log.to is console, default is false

log.disablePrintColor = false

transport.heartbeatTimeout = 90

Logs

-----------log frpc--------------------------
2026-06-05 08:36:30.522 [I] [client/service.go:328] [c00635a68a9c841d] login to server success, get run id [c00635a68a9c841d]
2026-06-05 08:36:30.522 [I] [proxy/proxy_manager.go:180] [c00635a68a9c841d] proxy added: [imei-tcp]
2026-06-05 08:36:30.590 [I] [client/control.go:165] [c00635a68a9c841d] [imei-tcp] start proxy success

2026-06-05 09:39:29.270 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:39:39.426 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:39:41.622 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:39:41.685 [I] [client/service.go:328] [c00635a68a9c841d] login to server success, get run id [c00635a68a9c841d]
2026-06-05 09:39:41.685 [I] [proxy/proxy_manager.go:180] [c00635a68a9c841d] proxy added: [imei-tcp]
2026-06-05 09:39:41.698 [I] [client/control.go:165] [c00635a68a9c841d] [imei-tcp] start proxy success

2026-06-05 09:48:58.346 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:48:58.351 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: dial tcp: lookup fprs.kkk119.top: no such host
2026-06-05 09:49:00.518 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:49:10.545 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:49:15.157 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:49:25.191 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:49:35.230 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:49:45.262 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:50:05.264 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:50:15.295 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:50:35.297 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:50:45.345 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:51:05.345 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:51:15.372 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
2026-06-05 09:51:35.372 [I] [client/service.go:308] [c00635a68a9c841d] try to connect to server...
2026-06-05 09:51:45.411 [W] [client/service.go:319] [c00635a68a9c841d] connect to server error: i/o deadline reached
.........................................................

PS E:\迅雷下载\frp_0.69.1_windows_amd64\frp_0.69.1_windows_amd64> .\frpc.exe -c frpc.toml
2026-06-05 09:55:06.346 [I] [sub/root.go:201] start frpc service for config file [frpc.toml] with aggregated configuration
2026-06-05 09:55:06.352 [I] [client/service.go:308] try to connect to server...
2026-06-05 09:55:06.403 [I] [client/service.go:328] [0813cdb3ed95bd42] login to server success, get run id [0813cdb3ed95bd42]
2026-06-05 09:55:06.404 [I] [proxy/proxy_manager.go:180] [0813cdb3ed95bd42] proxy added: [imei-tcp]
2026-06-05 09:55:06.414 [I] [client/control.go:165] [0813cdb3ed95bd42] [imei-tcp] start proxy success

Steps to reproduce

...

Affected area

• Docs
• Installation
• Performance and Scalability
• Security
• User Experience
• Test and Release
• Developer Infrastructure
• Client Plugin
• Server Plugin
• Extensions
• Others

[gwnpeter]

LOGS frps
2026-06-05 01:39:29.439 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:26403] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:39:29.439 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:39:41.547 [I] [proxy/proxy.go:138] [c00635a68a9c841d] [imei-tcp] proxy closing
2026-06-05 01:39:41.547 [W] [proxy/proxy.go:256] [c00635a68a9c841d] [imei-tcp] listener is closed: accept tcp [::]:9000: use of closed network connection
2026-06-05 01:39:41.547 [I] [server/control.go:336] [c00635a68a9c841d] client exit success
2026-06-05 01:39:41.547 [W] [server/service.go:490] write login response error: stream closed
2026-06-05 01:39:41.678 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:21341] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:39:41.700 [I] [proxy/tcp.go:82] [c00635a68a9c841d] [imei-tcp] tcp proxy listen port [9000]
2026-06-05 01:39:41.700 [I] [server/control.go:374] [c00635a68a9c841d] new proxy [imei-tcp] type [tcp] success
2026-06-05 01:40:53.233 [I] [proxy/proxy.go:259] [c00635a68a9c841d] [imei-tcp] get a user connection [111.55.205.148:33991]
2026-06-05 01:41:11.302 [I] [proxy/proxy.go:259] [c00635a68a9c841d] [imei-tcp] get a user connection [223.104.83.163:8311]
2026-06-05 01:41:31.553 [I] [proxy/proxy.go:259] [c00635a68a9c841d] [imei-tcp] get a user connection [223.104.83.160:43653]
2026-06-05 01:42:02.600 [I] [proxy/proxy.go:259] [c00635a68a9c841d] [imei-tcp] get a user connection [223.104.82.39:56034]
2026-06-05 01:42:22.694 [I] [proxy/proxy.go:259] [c00635a68a9c841d] [imei-tcp] get a user connection [223.104.82.1:38206]
2026-06-05 01:49:00.558 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:55038] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:49:00.558 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:49:15.205 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:59416] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:49:15.205 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:49:22.023 [I] [proxy/proxy.go:138] [c00635a68a9c841d] [imei-tcp] proxy closing
2026-06-05 01:49:22.023 [W] [proxy/proxy.go:256] [c00635a68a9c841d] [imei-tcp] listener is closed: accept tcp [::]:9000: use of closed network connection
2026-06-05 01:49:22.023 [I] [server/control.go:336] [c00635a68a9c841d] client exit success
2026-06-05 01:49:22.023 [W] [server/service.go:490] write login response error: stream closed
2026-06-05 01:49:35.274 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:44201] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:49:35.274 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:50:05.308 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:52043] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:50:05.308 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:50:35.358 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:57557] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:50:35.358 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:51:05.387 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:57999] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:51:05.387 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:51:35.421 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:36151] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:51:35.421 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:52:05.457 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:36153] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:52:05.457 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:52:35.484 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.37:36154] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:52:35.484 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:53:05.519 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:13382] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:53:05.519 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:53:35.550 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:58045] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:53:35.550 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:54:05.577 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:40533] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:54:05.577 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:54:35.608 [I] [server/service.go:758] [c00635a68a9c841d] client login info: ip [27.45.84.38:33238] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:54:35.608 [I] [server/control.go:196] [c00635a68a9c841d] replaced by client [c00635a68a9c841d]
2026-06-05 01:55:06.401 [I] [server/service.go:758] [0813cdb3ed95bd42] client login info: ip [27.45.84.37:35784] version [0.69.1] hostname [LAPTOP-CGU8IKB7] os [windows] arch [amd64]
2026-06-05 01:55:06.418 [I] [proxy/tcp.go:82] [0813cdb3ed95bd42] [imei-tcp] tcp proxy listen port [9000]
2026-06-05 01:55:06.418 [I] [server/control.go:374] [0813cdb3ed95bd42] new proxy [imei-tcp] type [tcp] success
2026-06-05 01:55:33.683 [I] [http/middleware.go:35] http request: [/static/]
2026-06-05 01:55:33.683 [I] [http/middleware.go:38] http response [/static/]: code [200]
2026-06-05 01:55:33.742 [I] [http/middleware.go:35] http request: [/static/index-CFK13ysj.js]
2026-06-05 01:55:33.752 [I] [http/middleware.go:35] http request: [/static/index-BEgt9ZEn.css]
2026-06-05 01:55:33.759 [I] [http/middleware.go:38] http response [/static/index-BEgt9ZEn.css]: code [200]
2026-06-05 01:55:33.759 [I] [http/middleware.go:38] http response [/static/index-CFK13ysj.js]: code [200]
2026-06-05 01:55:33.830 [I] [http/middleware.go:35] http request: [/api/clients]
2026-06-05 01:55:33.830 [I] [http/middleware.go:38] http response [/api/clients]: code [200]
2026-06-05 01:55:36.560 [I] [http/middleware.go:35] http request: [/api/clients/0813cdb3ed95bd42]
2026-06-05 01:55:36.560 [I] [http/middleware.go:38] http response [/api/clients/0813cdb3ed95bd42]: code [200]
2026-06-05 01:55:36.561 [I] [http/middleware.go:35] http request: [/api/serverinfo]
2026-06-05 01:55:36.561 [I] [http/middleware.go:38] http response [/api/serverinfo]: code [200]
2026-06-05 01:55:36.588 [I] [http/middleware.go:35] http request: [/api/proxy/tcp]
2026-06-05 01:55:36.588 [I] [http/middleware.go:38] http response [/api/proxy/tcp]: code [200]
2026-06-05 01:55:36.601 [I] [http/middleware.go:35] http request: [/api/proxy/udp]
2026-06-05 01:55:36.601 [I] [http/middleware.go:38] http response [/api/proxy/udp]: code [200]
2026-06-05 01:55:36.619 [I] [http/middleware.go:35] http request: [/api/proxy/http]
2026-06-05 01:55:36.619 [I] [http/middleware.go:38] http response [/api/proxy/http]: code [200]
2026-06-05 01:55:36.632 [I] [http/middleware.go:35] http request: [/api/proxy/https]
2026-06-05 01:55:36.632 [I] [http/middleware.go:38] http response [/api/proxy/https]: code [200]
2026-06-05 01:55:36.658 [I] [http/middleware.go:35] http request: [/api/proxy/tcpmux]
2026-06-05 01:55:36.658 [I] [http/middleware.go:38] http response [/api/proxy/tcpmux]: code [200]
2026-06-05 01:55:36.673 [I] [http/middleware.go:35] http request: [/api/proxy/stcp]
2026-06-05 01:55:36.673 [I] [http/middleware.go:38] http response [/api/proxy/stcp]: code [200]
2026-06-05 01:55:36.687 [I] [http/middleware.go:35] http request: [/api/proxy/sudp]
2026-06-05 01:55:36.687 [I] [http/middleware.go:38] http response [/api/proxy/sudp]: code [200]
2026-06-05 01:59:09.664 [I] [proxy/proxy.go:259] [0813cdb3ed95bd42] [imei-tcp] get a user connection [223.104.83.37:48206]
2026-06-05 01:59:47.522 [I] [proxy/proxy.go:259] [0813cdb3ed95bd42] [imei-tcp] get a user connection [223.104.82.50:6990]
2026-06-05 02:00:26.241 [I] [proxy/proxy.go:259] [0813cdb3ed95bd42] [imei-tcp] get a user connection [111.55.205.152:12298]
2026-06-05 02:00:50.232 [I] [proxy/proxy.go:259] [0813cdb3ed95bd42] [imei-tcp] get a user connection [223.104.83.54:56464]
2026-06-05 02:02:06.905 [I] [proxy/proxy.go:259] [0813cdb3ed95bd42] [imei-tcp] get a user connection [223.104.83.167:18382]