I have been using the broadband plan BBG SPEED COMBO ULD 1091 CS70 from BSNL Chennai for almost a year now. But for the past two-three months I am having connectivity issues. The first thing I observed was the drop in the download SNR margin. It has gone down from around 220 to 116, further this low value is also not stable, it fluctuates between -40 and 116. During the past three months I have made several complaints with BSNL to rectify the issue, but so far nothing has worked out. I even provided them with a new cable to replace the cable from junction box to wall mount, but was of no use. Interestingly for the past few days I have been observing the connection to be a bit stable during the day but after 5pm it becomes very unstable, internet connection gets lost within few minutes. Has anyone encountered such a problem?