wifi issues

Hi All Background : I've been using TPLINK's TL-WR740N router for my home WiFi needs. It has been in service (and has served me very well) for 3 almost years now. Problem : Since the past 1-2 months, I noticed that after the router has been up for a day or so, the WiFi network doesn't show up...

What's your Budget? <25K What will be your primary usage for the notebook be? web surfing/chromecast/downloads What size and weight considerations do you have? 15 inch screen preferred Any brand that you prefer, or any brand that you detest? No idea here, need advice Any other...