Network speed drops to almost 0 when launcher is open

Development Getting Started & Setup
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1

I have 50 Mb/s download/upload from Verizon Fios. It will be working perfectly until open the Epic Games Launcher, then the speed drops to almost 0 on everything using the internet (browser, steam download, epic downloads).
I will start a steam download and it will be ~7MB/s like it is supposed to be, I double click on the Epic Games Launcher shortcut and the download speed drops to under 128 kB/s, and I am unable to do anything related to the internet as long as the launcher is open. When I exit the launcher completely (not minimized in system tray), the download speed immediately goes back up to 7MB/s.

I have been unable to find this exact problem on the forums, but I have tried different answers that were close, but none of them helped. (-http=wininet in shortcut, disabling virus protection for testing, timeouts and retries in defaultengine.ini)

I am have attached my dxdiag and log files.link textlink text

2

Are you an engine user? If you have the engine installed can you report back whether this issue also happens when the editor is open but the launcher is not?

3

It did not happen when the engine was open, and launcher was closed. I cannot currently confirm that again because I tried uninstalling everything and starting over. However because the same problem continued, I have been unable to download the engine.

4

Are you able to sign-in to the launcher? Do pages load properly if you get past the sign-in?

Also please try the following steps:

  • Shut down the Launcher

  • Open the file c:\Users[YourUsername]\AppData\Local\EpicGamesLauncher\Saved\Config\Windows\Engine.ini in Notepad or a text editor of your choice (replace [YourUserName] with your Windows user name)

  • Find the line MulticastEndpoint=230.0.0.1:6666 and replace the 6666 with another number, i.e. 6345

  • Save the file, and restart the Launcher

5

I am able sign in, but the network issue stays as long as the launcher is open even past sign-in.

I edited the engine.ini file. I was able to chang the 6666 to 6345.
It is sitting at please wait

6

it eventually made it past the sign-in, but the network issues persist.

7

any ideas?

8

I have finally got the engine installed and now can confirm that this problem does occur when just the engine is open and the editor is closed.

9

I’m assuming by your last statement that ‘engine’ == editor and ‘editor’ == launcher?

I’m still guessing it has something to do with your router not liking the traffic the launcher and editor are broadcasting. If possible I would try a different router or switching to a different network to see if the problem persists. Another option is to try installing on a different computer on the same network and see if the problem reproduces.

10

I used another computer with launcher and editor installed. I usex the network cable from the computer that is not working and plugged it into the new computer. It had no problems

11

I have tried everything I can think of. and the things you have thought of. any other ideas? please