[Q] My WiFi is unstable after flashing a rom and a kernel. - General Questions and Answers

Hello everyone!
I am new to these forums, and as such, glad to meet you all!
Recently, I have flashed a rom and a kernel onto my Samsung Galaxy S i9000. I am very pleased with the result although I have one problem that I came across. As you have read on the title, my WiFi is very unstable and after 2/3 minutes it disconnects and reconnects. It doesn't seem to have this problem when I'm on 3g. I've tried many things, like reconnecting the router and setting up a static ip adress. None of these seem to work, although the static ip adress somewhat prolongs the disconnections. I will get into details in a second. I also had issues with my 3g when I flashed the rom, but I was able to fix that by adding an APN settings. Maybe it has something to do with this.
The reason I am posting this in this section is because I wasn't allowed to post in the rom section so I am sorry if it's in the wrong place. Now I've looked into the other threads when I was making my topic (very handy feature btw), and I've tried replacing 3 files into my system/etc/wifi folder, although only one was present there (wpa_suplicant). Both "Twilan" and "Twilan_Firmware" were absent. Anyway, I added these 3 into the "Wifi" folder and rebooted, but the issue is still present.
Now I have a huge question mark above my head on how to fix this issue. I heard a fabric reset works but I don't want to lose the rom. So does anyone have an idea how to fix this?
Link to custom rom and kernel:
http://forum.xda-developers.com/showthread.php?t=1344489
What I've tried:
http://forum.xda-developers.com/showpost.php?p=16727426&postcount=7
http://forum.xda-developers.com/showpost.php?p=16418919&postcount=1506
Before I flashed:
Darky's Rom 10.2 extreme edition
Gingerbread 2.3.5
How I flashed:
Flashed Stock Rom over Darky's Rom.
Flashed Semaphore kernel on the stock rom.
From recovery mode, installed GalaxyDroid rom. (I just did the steps that are listed in the thread of the custom rom.)

Bump10char

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[edit]
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