Hello, I have an C886VA-K9 on ADSl2+ without BNG.The old firmware was c800-universalk9-mz.SPA.154-1.T1.bin, the new one is c800-universalk9-mz.SPA.159-3.M2.binThe MTU on Dialer0 is set to 1492, MSS in vlan 1 is set to 1452.This configurations works w...