Reliance Netconnect+ with TP Link MR3420 Wifi router

after using BSNL evdo for a long time , trying reliance netconnect+ just for the upload speeds

opted for prepaid connection

Recharged for Rs 449 which says its TRULY UNLIMITED for 15 days , let me see

had quite a time configuring the TP-Link wifi router

atlast got it solved

Reliance Netconnect+ model - ZTE AC 2738

1. Router just kept identifying and never connected

2. upgraded the Router firmware to
3.15.9 Build 140912 Rel.35984n FROM 3.13.27 Build 121206 Rel.60215n

3. then
APN - Blank
Username - net
Password - net

4. connection done