PPPoE not working on my router WR841n, but working fine if I dial from my PC

I have a modem which I coect to my PC, I can coect to the inteet by dialing PPPoE with useame/password ISP gave me.

Today I bought a router so I can share the inteet with other computers at my home.

However when I tried dialing on my router, it's not working.

I already made sure it's plugged into the WAN port and I gave my ISP a call and they said they're not blocking anything.

Any idea why? Is my router faulty? Unfortunately I don't have another router to test. Thanks for reading and apologize for bad english.