Connected new TP-Link Wireless Lite N Router TL-MR3220 with Ethernet to existing Thomson TWG850-4 Residential Voice Gateway. One PC connected to TP-Link router,and this one works fine. However few other WiFi devices are having quite some difficulties connecting to internet. Sometimes internet connection via WiFi is OK, but most of time is difficult, often broken, or cannot connect at all. Same devices work fine at other WiFi networks. My TP-Link router detects Dynamic IP WAN Connection type. Am using cables as recommended; and set laptops etc to automatically detect IP. Do not know what else I should do; please help! Thanks

Computers & Internet - TP-LINK