Unable to Connect to Mobile Network on Any Custom Rom

Hi Folks
I have a Samsung Galaxy S3 Mini - GT-i8190. I have CWM recovery install which is fully functional - However i have a problem
I have installed about 9 custom roms and none of them, not one, will connect to a mobile network - What i have tried thus far:

• i have tried three different workjing sim cards -


• I have tried a total of nine roms ranging from CM 10 to CM 11, Omni, Carbon, Slimkat and several other variations


• All of these roms install perfectly and are fully functional except for connecting to the network


• When i use Odin to reflash my Stock Rom Backup - everything works perfectly again - i connect to my mobile server with no issues what so ever


• When installing a custom rom i always wipe data - factory reset - and i have also tried formating system and wiping Dalvik cache

I am not an expert but i have customized several phones for family and friends and i have yet to completely brick anything - (came close once but managed to use odin to get out of jail :cyclops:)

But this one has me completely stumped - it is fully unlocked and will work with any network using stock rom -

Is there anyone who can point me in the direction of a fix for this - or to another rom that may not have this problem - i realize its probable that its not the roms but i havent found any sign that others are having this problem

Much obliged for your assistance folks