im so sorry my laptop had been broken this couple weeks, and i also can't access internet zetm wrote Channel interference. Try different channels and use channel width 20MHz (HT20). Also, if you are...

i only use 7210n for AP Client Router, but the signal reception is very unstable (yes i have clear sight and only 350 m away) before connect i got 30db signal, after connect i got 25db, after 30...