I have a feeling this question has already been asked, but couldn't find it by searching. I found people asking about hyphenation of multiple compound adjectives with a common second word, but I'm wondering about hyphenation of multiple compound adjectives with a common first word.
What is the correct way to hyphenate a phrase like this, assuming that "sometimes" is modifying both "unreliable" and "inadequate?":
sometimes unreliable and inadequate Internet service
Note that if style plays a role in your answer, I prefer American English and specifically Chicago style.