As a sole-proprietor, Can one start a separate LLC?

Online affiliates using SSN Or EIN as sole prop but also want to setup an LLC
for Ecommerce.
Would setting up an LLC dissolve the sole prop?
Would new EIN for the LLC be needed?

As a sole-proprietor, Can one start a separate LLC?===>>>>>>>>you mean smllc, then, yes;as a sole proprietor, you own and operate your own business, but it is not a corporation or mmllc,partnership, I mean.

Online affiliates using SSN Or EIN as sole prop but also want to setup an LLC
for Ecommerce.
Would setting up an LLC dissolve the sole prop?=========>>no; you can run both of them; llc here means smllc not mmllc, partnership.
Would new EIN for the LLC be needed?=========>>>>>it depends; you need a new EINn when you take in partners and operate as a partnership; you purchase or inherit an existing business that you operate as a sole proprietorship.but you do not need new one aslongas you operate multiple businesses.