This sounds like a back end issue. What about your neighbours, are they experiencing the same thing? From your posts it doesn't seem like you've talked to a backend engineer yet. Please try and do that,
You can call them and ask to talk to someone from the NOC or even a callback from an engineer from the local NOC.
No my neighbours are not experiencing any such issues.
I've a few points that I think might be related to the problem I'm facing currently.
1. I'm currently getting 75% discount and ₹300 off for three months (₹0 bill every month). If I remember correctly, this issue started right after I called customer care in the first week of January 2017 to upgrade my old plan (₹1099 75GB/8Mbps) to new plan (₹1099 90GB/8Mbps) while retaining (my first discount in my 7 years history of my airtel connection) the discount of ₹100, which I got from airtel in the month of September in 2016. I'm not sure but airtel might be placing customers with discounts on a different route.
I just want to ask are you here are getting discounts from airtel? If yes, from how long and do you face any problem like me after getting discount?
Also, a friend of mine, who is on 8Mbps
ADSL, is getting similar discounts like me (less 75%, ₹300 but for 6 months) and also facing the exact same problem like mine. This has something to do with discounts?
2. My landline number and DSL ID are different. Airtel's local service engineer told me that all the new subscribers get DSL ID's different from their landline number. In my office, we have airtel connection from past 7-8 years which has same landline number and DSL ID. We don't face any issues there.
EDIT: In our office, we neither get any discounts nor we've ever requested for any discounts. Also, our office is in different area 1-2KMs from my home.
A year ago, I moved to Banglore in search of job but returned back 2 months later. When I reactivated my airtel connection, I got a new DSL ID but the same landline number. Do you have the same DSL ID and landline number?
Expecting answers from all the airtel users; especially from
@manojrk since he's in Chennai and on the same V-Fiber not facing any such issue.