I thing all custom ROM common problem is 1st Sim Data Connection Problem

I thing all custom ROM common problem is,

1st Sim Data (2G-3G) or WiFi Connection Problem or in Nokia XL (1.2.3.2).
Except Internet (basically 1st SIM) all Rom is Good in there individual feathers.

This is my personal experience after flashing 4-5 different Custom Rom. May be your experience dose not match with me. Sorry for that.

Please give your opinion. It's can helping those members who thinking to flashing Custom Rom.

My 4th post was about reporting a WLAN bug in the common PACROM 5.1.1 thread

But I'm not allowed to do so, because I need 10 posts to post in any development forum.

I can understand this move, because of spammers and annoying kids. However, I'm a less active person who would only post on real issues. I just registered 1-2 weeks ago, to get help installing Xposed on 5.1.1.

So maybe anybody can help me now:

The main problem is, WLAN starts to sleep when my Galaxy S3 turns into standby. I got the PAC ROM pac_i9300-lp-mr1-Official-20150712. I already checked the advanced options of WLAN, and it says always keep alive.

To any person with authority: I would be glad to get access with just my few posts, so I can directly ask in the correct development forum.

Or is there a better place to get help? I'm barely lurking around, just for issues, until now. Thank you!