I use Digisol DG-BG4100N Wireless Broadband Router, with BSNL 4Mbps ULD plan. Everything was going smooth and fine, but recently, internet speed used through wifi has become slow-ish i guess. I came to know about it when i opened instagram and app got freezed/slow loading/not responding. I re installed app, cleared cache, wipe cache partition, still problem persists. But then i used Instagram in my office wifi and it's smooth. Also at home wifi, Slow image download in whatsapp. But then i used Speedtest on my phone, speeds were great under 60ms ping, 400kbps download speed and approx 60kbps upload speed. Im worried because i accidentally dropped modem twice while carrying around. I also feel slight slowness while browsing facebook as gifs load slowly ON LAPTOP(connected using Ethernet Cable). But also youtube video @360p loads pretty quickly. Also not buffering while watching at 1080p. Watched whole football match online with some errors on server side. Instagram freezes badly. I just want to know if my modem wifi has any issues!? Is there anything to look for or any setting to be tweaked!? Kindly help me.