Neighbours WiFi signal

[asnl]

My cousin asked me if I could help him in his apartment with his internet. He is using neighbours wifi but he can't use in all rooms because the signal is too weak. What device should I use to work like router but it would strenghten the signal of neighbours router?
I'm sorry for bad english.

 

[Dark Lord of Tech]

Have the neighbors to buy a stronger router.

 

[USAFRet]

Have the neighbor move their router closer to the adjoining wall.

 

[TurboCooler]

My cousin asked me if I could help him in his apartment with his internet. He is using neighbours wifi but he can't use in all rooms because the signal is too weak. What device should I use to work like router but it would strenghten the signal of neighbours router?
I'm sorry for bad english.

Find out the brand of the wireless router the neighbor is using. See if it supports WDS. If does, purchase the same one and setup bridging. See this article http://www.tomsguide.com/us/how-to-wds-bridge,review-253.html