Default Mobile data is slow

Hey guys,

I have being Rom'ing my Note 3 n900 for the last few days, tried Rom's,Modems's and even CSC's.
Right now i am on Alliance ROM, 4.4.2, N900XXUENF2 baseband and NF3 Build number.
My data is slow i cannot even open facebook, This happend after i flashed some "stock" rom ( as it say at the download website) that had all 4 parts Recovery,CSC,Modem,PDA, the strange thing is that Whatssup is working great.
before that my data speed were great.

Anyone have any ideas on what todo?