[🐛 Bug]: [grid] Regression: 4.41 times out on setting window size while 4.40 and earlier works

[kelmelzer]

Description

• Instantiate an Edge RemoteWebDriver (I'm using .NET) against a locally running Selenium Grid 4.41.0 Standalone JAR file (http://localhost:4444)
• Set the Window's Size property to new(1920, 1080)
• The command times out and throws this error:

Timeout when executing request (POST http://169.254.135.134:4444/session/bc84990e53da7fdee5454a92edef326d/window/rect) Build info: version: '4.41.0', revision: '9fc754f90a' System info: os.name: 'Windows 11', os.arch: 'amd64', os.version: '10.0', java.version: '21.0.10' Driver info: driver.version: unknown OpenQA.Selenium.UnknownErrorException: Unable to execute request for an existing session: Timeout when executing request (POST http://169.254.135.134:4444/session/bc84990e53da7fdee5454a92edef326d/window/rect)
Build info: version: '4.41.0', revision: '9fc754f90a'
System info: os.name: 'Windows 11', os.arch: 'amd64', os.version: '10.0', java.version: '21.0.10'
Driver info: driver.version: unknown
   at OpenQA.Selenium.WebDriver.UnpackAndThrowOnError(Response errorResponse, String commandToExecute)
   at OpenQA.Selenium.WebDriver.ExecuteAsync(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.WebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.Window.set_Size(Size value)

Reverting to Selenium Grid 4.40.0 and earlier versions works

Reproducible Code

// run local instance of Selenium Grid 4.41.0 Standalone JAR file with Java (using OpenJDK)
// use .NET Selenium.WebDriver 4.41.0

var gridUri = new Uri("http://localhost:4444");
var edgeOptions = new EdgeOptions();
using var remoteWebDriver = new RemoteWebDriver(gridUri, edgeOptions);

// this line times out and throws above exception
remoteWebDriver.Manage().Window.Size = new(1920, 1080);

---

ℹ️ Last known working version: 4.40.0

[selenium-ci]

@kelmelzer, thank you for creating this issue. We will troubleshoot it as soon as we can.

Selenium Triage Team: remember to follow the Triage Guide

[kelmelzer]

Hmm, now I'm trying to repro it again with 4.41.0, and its working....ugh, maybe just the simple act of restarting fixed something?

[cgoldberg]

@kelmelzer can we close this?

[kelmelzer]

Sure. Let's close it, and I'll see if it ever pops up again....so odd.

…

On Thu, Apr 2, 2026, 12:05 AM Corey Goldberg ***@***.***> wrote: *cgoldberg* left a comment (SeleniumHQ/selenium#17289) <#17289 (comment)> @kelmelzer <https://github.com/kelmelzer> can we close this? — Reply to this email directly, view it on GitHub <#17289?email_source=notifications&email_token=ACNNGZQ4YAAUFWAUQSSVYHT4TXRH7A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMJXGQ2DQOJVGIYKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLDGN5XXIZLSL5RWY2LDNM#issuecomment-4174489520>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACNNGZXKFY6X5PEVQFASRGL4TXRH7AVCNFSM6AAAAACXJM6OTKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCNZUGQ4DSNJSGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>