gaeksireseo waipai yeongyeori jal an dwaeyo.

The Wi‑Fi connection doesn’t work well in the room.

Breakdown of gaeksireseo waipai yeongyeori jal an dwaeyo.

• ~이: subject particle
• ~에서: location particle
• 안: not
• 잘: well
• 객실: room
• 와이파이: Wi‑Fi
• 연결: connection
• 되다: to work / to function

Questions & Answers about gaeksireseo waipai yeongyeori jal an dwaeyo.

What does 객실에서 mean, and why is 에서 used instead of 에?

객실에서 = 객실(guest room) + 에서.

• 에서 marks the place where an action/state happens: in the room / from inside the room (as the location of the problem).
• 에 is more for existence/destination (있다/없다, going/coming) or a target location.
  Here, you’re talking about where the Wi‑Fi problem occurs, so 에서 fits naturally.

Is 객실 specifically a hotel word? Could I use 방 instead?

Yes, 객실 is a common hotel/accommodation term meaning guest room.

• 객실 sounds more formal/polite in hotels.
• 방 just means room and is more general/casual.
  So 객실에서 와이파이… sounds like something you’d tell hotel staff; 방에서… is fine in everyday speech.

Why is 와이파이 written like that? Is it just Wi‑Fi?

Yes. 와이파이 is the Korean loanword spelling of Wi‑Fi. In Korea you’ll also see Wi‑Fi written in English on signs, but in sentences it’s often written 와이파이.

What does 연결 mean, and how does 와이파이 연결 work as a phrase?

연결 means connection / connecting.
와이파이 연결 is a noun phrase meaning Wi‑Fi connection. Korean often stacks nouns like this:

• 와이파이 (Wi‑Fi) + 연결 (connection) = Wi‑Fi connection

Why is the subject marker 이 used in 연결이?

연결이 = 연결 + 이 (subject marker).
It marks the Wi‑Fi connection as the thing being described as not working well. In Korean, the “topic” or “subject” of the problem is often marked like this even if English would phrase it differently.

What does 잘 do in 잘 안 돼요?

잘 means well (as an adverb).
So 잘 안 돼요 literally means it doesn’t work well / it’s not working properly.
It’s a very common, natural way to say something isn’t functioning normally (internet, apps, machines, etc.).

How does 안 돼요 work here? I thought 안 돼요 means You can’t or No.

안 돼요 has two common uses: 1) Not allowed / can’t (rule/permission): 여기서 담배 피우면 안 돼요 (You can’t smoke here.)
2) Doesn’t work / doesn’t function / doesn’t go well: 컴퓨터가 안 돼요 (The computer isn’t working.)

In this sentence it’s meaning (2): The Wi‑Fi connection isn’t working (well).

Why is it 돼요 and not 되요?

The correct spelling is 돼요 (from 되다).

• Base verb: 되다 (to become / to work out / to function)
• Conjugation: 되어요 → 돼요 (common contraction)
  되요 is a very common misspelling, but standard Korean uses 돼요.

What politeness level is …돼요, and what are common alternatives?

…돼요 is 해요체 (polite, everyday). It’s appropriate for speaking to hotel staff.
Common alternatives:

• More casual (to friends): 객실에서 와이파이 연결이 잘 안 돼.
• More formal/polite: 객실에서 와이파이 연결이 잘 안 됩니다.
• Softer/more tentative: 객실에서 와이파이 연결이 잘 안 되는 것 같아요. (I think it’s not connecting well.)

Could I drop parts of the sentence in conversation?

Yes, Korean often drops context that’s obvious. For example, if you’re already talking about the room:

• 와이파이 연결이 잘 안 돼요.
  Or if it’s obvious you mean Wi‑Fi:
• 연결이 잘 안 돼요. (The connection isn’t working well.)
  But the full sentence is clearer when reporting a problem to staff.

How would I say this if I want to emphasize the Wi‑Fi keeps disconnecting rather than failing to connect?

If you mean it connects but keeps dropping, you can say:

• 와이파이가 자꾸 끊겨요. (The Wi‑Fi keeps disconnecting.)
• 연결이 자주 끊겨요. (The connection drops often.)
  If you mean it won’t connect in the first place, your original sentence (연결이 잘 안 돼요) is a good fit.