After upgrading My Roblox Client, It stopped working.

Bug Reports Roblox Application and Website Bugs
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1

I upgraded the Roblox version recently, It was normal when it was upgraded, When I closed it, It stopped loading the settings?

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It recently affected me as of this month.

However it doesn’t happen on my Personal Laptop (for me and my brother), This only happens to my Shared Computer.
(The website works fine.)

Solutions I’ve tried:

  • Flushing the DNS.
  • Removing my Manual DNS Assignment
  • Playing from the browser.

All of these proven faulty.

Note that I will not install it as a Administrator, I do not own this computer and it’s unnecessary.

And for more context: My laptop is always used by my brother with Roblox opened.
(for those who are curious)

Fetch Flag Exception and HttpError: DnsResolve
It failed to fetch a flag.

Expected behavior

I expected it to load to the Roblox Menu, and Download all of the Settings.

A private message is associated with this bug report

2

Have you tried to uninstall and reinstall the client? Sometimes this can be due to a corrupted file.

3

Do I have to Uninstall it entirely for it to work, I tried reinstalling using RobloxPlayerInstaller.exe located in the Game Client itself, It didn’t work when I tried to install it from the game client installer file executive?

4

It also started affected my Roblox Studio.

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5

Hello!

The above error dialog, as well as the log file attached to the PM, both indicate that Roblox is unable to perform DNS resolution. DNS resolution is the process by which a domain name (e.g. example.com) is transformed into an IP address so that your computer can connect to the server at the other side.

Can you please try the following steps on the computer that’s having the problem:

  1. Press Windows key + R
  2. In the “Run” dialog that shows up, type cmd and press enter.
  3. In the Command Prompt window that appears, type nslookup clientsettingscdn.roblox.com and press enter.
  4. Copy the result, remove the “Server:” and “Address:” lines at the top (keep the “Addresses:” line), and paste it here. Or, take a screenshot of the Command Prompt window and attach it to the PM.

The result should look similar to this format:

Non-authoritative answer:
Name:     (something).akamaiedge.net
Address:  12.34.56.78
Aliases:  clientsettingscdn.roblox.com
          clientsettingscdn.roblox.com.edgekey.net

However, I suspect that your DNS server is not reporting the correct result.

As additional optional debugging steps, you can also try:

  1. Visit https://clientsettingscdn.roblox.com/v2/client-version/WindowsPlayer in your web browser (it should yield a JSON file) - what happens?
  2. Run nslookup example.com in Command Prompt - it should successfully produce output like above - does it?

Thanks!

6

Everything you asked me to try returns Unknown as it’s result.
What now?

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7

It now works, But there is something with it.
The game still doesn’t work but it now connects to the server.

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Is this DNS response good?

8

0.679.0.6790761_20250709T043742Z_Player_254AA_last.log (2.5 KB)
this is the new log it generated.

9

The first two screenshots show an issue with your DNS resolution system. The last screenshot seems to show it working, however, based upon the attached log file, there’s still an issue with DNS resolution.

DNS servers are typically provided and maintained by your internet service provider (ISP). I recommend following up with your ISP to figure out why the DNS infrastructure is not working.

Lastly, if you’re confused about why your web browser still works, this is because web browsers do DNS resolution through a different mechanism that doesn’t use your normal DNS servers. So the DNS servers have always had this issue, and your web browser (e.g. Chrome, Firefox, Safari, Edge, …) has never been using them.

10

I also tried looking at Event Viewer:
Faulting application name: RobloxPlayerBeta.exe, version: 0.679.0.40553, time stamp: 0x2f80e327
Faulting module name: RobloxPlayerBeta.exe, version: 0.679.0.40553, time stamp: 0x2f80e327
Exception code: 0x80000003
Fault offset: 0x000000000382347b
Faulting process id: 0xAA4
Faulting application start time: 0x1DBF97A808D46F5

I don’t think this has alot of information.

11

Hi @PuroTheFriend , is this issue still occurring for you?

If so, can you try a few things?

  1. Run the nslookup clientsettingscdn.roblox.com command from before.
  2. Attempt to launch the Roblox App
  3. Run the nslookup command again
  4. Collect the Roblox App’s logs and a screenshot of the command

Then, follow the instructions from Google here to configure your device to use Google’s DNS servers: Get Started  |  Public DNS  |  Google for Developers
(ignore the instructions for “IPv6-only” in step 8)

Then repeat steps 1 through 4.

Once you are finished, you can revert your DNS settings with the instructions here: Get Started  |  Public DNS  |  Google for Developers

12

It seems like this was likely not an issue with the Roblox application itself, and may no longer be occurring for you, so we’ll close this report for now. Please feel free to open a new topic if you encounter this again.