(a)See post No 8 again.
(b)Confirm you get internet connection any other time.
(c)opendns are 208.67.220.220 and 208.67.222.222
(d) confirm your modem page looks like this Device status.
http://i36.tinypic.com/2lizm2b.jpg
REF:1. Initial Setup of UT300R2U ADSL Modem
2.
https://broadband.forum/bsnl-broadband/26523-connection-problems-goa-error-678-a/#post181789
(b)Confirm you get internet connection any other time.
(c)opendns are 208.67.220.220 and 208.67.222.222
(d) confirm your modem page looks like this Device status.
http://i36.tinypic.com/2lizm2b.jpg
REF:1. Initial Setup of UT300R2U ADSL Modem
2.
https://broadband.forum/bsnl-broadband/26523-connection-problems-goa-error-678-a/#post181789