fttc Annex A or B?

[Vds12]

Should I use Annex A or Annex B? Third party router.

[licquorice]

A

[TimCurtis]

@Vds12 

These are my settings for an Asus but might help you:-

[Vds12]

Thanks yeah It gives me the option for Annex B, so I wasn't sure.

If I did choose Annex B would it either work or not? or cause issues?

[licquorice]

It wouldn't work