[GH-ISSUE #3808] connection write timeout

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2026-05-05 13:57:35 -06:00

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Originally created by @sablea on GitHub (Nov 28, 2023).
Original GitHub issue: https://github.com/fatedier/frp/issues/3808

Bug Description

I have a server and a client.Both of them are ubuntu os.
When I run ./frpc -c ./frpc.ini, there is a connection write timeout error.
I am certain that this error is not caused by firewall or port settings, as it worked well before today. And I always can use the ping command to connect to the server IP.

frpc Version

0.48.0

frps Version

0.48.0

System Architecture

ubuntu2004/amd64

Configurations

file frps.ini as follows:
[common] bind_port = 7000

file frpc.ini as follows:

`[common]
server_addr = x.x.x.x
server_port = 7000

tls_enable = true

[ssh]
type = tcp
local_ip = 127.0.0.1
local_port = 22
remote_port = 6000`

Logs

The server's logs as follows:
when run ./frps -c ./frps.ini ：
2023/11/28 17:09:22 [I] [root.go:206] frps uses config file: ./frps.ini
2023/11/28 17:09:22 [I] [service.go:200] frps tcp listen on 0.0.0.0:7000
2023/11/28 17:09:22 [I] [root.go:215] frps started successfully

The client's logs as follows:
when run ./frpc -c ./frpc.ini:
2023/11/28 17:11:04 [W] [service.go:134] login to server failed: connection write timeout
connection write timeout

Steps to reproduce

...

Affected area

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

Originally created by @sablea on GitHub (Nov 28, 2023). Original GitHub issue: https://github.com/fatedier/frp/issues/3808 ### Bug Description I have a server and a client.Both of them are ubuntu os. When I run `./frpc -c ./frpc.ini`, there is a connection write timeout error. I am certain that this error is not caused by firewall or port settings, as it worked well before today. And I always can use the ping command to connect to the server IP. ### frpc Version 0.48.0 ### frps Version 0.48.0 ### System Architecture ubuntu2004/amd64 ### Configurations file frps.ini as follows: `[common] bind_port = 7000` file frpc.ini as follows: `[common] server_addr = x.x.x.x server_port = 7000 tls_enable = true [ssh] type = tcp local_ip = 127.0.0.1 local_port = 22 remote_port = 6000` ### Logs The server's logs as follows: when run `./frps -c ./frps.ini `： 2023/11/28 17:09:22 [I] [root.go:206] frps uses config file: ./frps.ini 2023/11/28 17:09:22 [I] [service.go:200] frps tcp listen on 0.0.0.0:7000 2023/11/28 17:09:22 [I] [root.go:215] frps started successfully The client's logs as follows: when run `./frpc -c ./frpc.ini`: 2023/11/28 17:11:04 [W] [service.go:134] login to server failed: connection write timeout connection write timeout ### Steps to reproduce 1. 2. 3. ... ### Affected area - [ ] Docs - [ ] Installation - [ ] Performance and Scalability - [ ] Security - [ ] User Experience - [ ] Test and Release - [ ] Developer Infrastructure - [X] Client Plugin - [ ] Server Plugin - [ ] Extensions - [ ] Others