Frequent disconnection of Wifi

I have a BSNL Broadband connection and using an ADSL Type II Modem to connect it to my laptop..

The wifi is being disconnected regularly..the following si the system log of modem..

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1/1/2000 0:8:8> No DNS server available
1/1/2000 0:8:8> Last errorlog repeat 10 Times
1/1/2000 0:8:8>adjTimeTask fail: no server available
1/1/2000 0:8:8>adjtime task pause 60 seconds
1/1/2000 0:8:8> No DNS server available
1/1/2000 0:8:8>adjTimeTask fail: wrong domain name
1/1/2000 0:8:8> No DNS server available
1/1/2000 0:8:8> Last errorlog repeat 10 Times
1/1/2000 0:8:8>adjTimeTask fail: no server available
1/1/2000 0:8:8>adjtime task pause 60 seconds
1/1/2000 0:8:8> No DNS server available
1/1/2000 0:8:8>adjTimeTask fail: wrong domain name
1/1/2000 0:8:8> No DNS server available
1/1/2000 0:8:8> Last errorlog repeat 10 Times
1/1/2000 0:8:8>adjTimeTask fail: no server available
1/1/2000 0:8:8>adjtime task pause 1 day
1/1/2000 0:8:27> System Error: 64 PC: 80098944
1/1/2000 0:8:28> Last errorlog repeat 11 Times
1/1/2000 0:8:28> System Error: 64 PC: 800987b4
1/1/2000 0:8:28> System Error: 64 PC: 80098944
1/1/2000 0:8:49> Last errorlog repeat 45 Times
1/1/2000 0:8:49> System Error: 64 PC: 800987b4
1/1/2000 0:8:49> Last errorlog repeat 1 Times
1/1/2000 0:8:49> System Error: 64 PC: 80098944
1/1/2000 0:9:8> Last errorlog repeat 31 Times
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8>adjTimeTask fail: wrong domain name
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8> Last errorlog repeat 10 Times
1/1/2000 0:9:8>adjTimeTask fail: no server available
1/1/2000 0:9:8>adjtime task pause 60 seconds
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8>adjTimeTask fail: wrong domain name
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8> Last errorlog repeat 10 Times
1/1/2000 0:9:8>adjTimeTask fail: no server available
1/1/2000 0:9:8>adjtime task pause 60 seconds
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8>adjTimeTask fail: wrong domain name
1/1/2000 0:9:8> No DNS server available
1/1/2000 0:9:8> Last errorlog repeat 10 Times
1/1/2000 0:9:8>adjTimeTask fail: no server available
1/1/2000 0:9:8>adjtime task pause 1 day
1/1/2000 0:9:11> System Error: 64 PC: 80098944
1/1/2000 0:10:8> Last errorlog repeat 104 Times
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8>adjTimeTask fail: wrong domain name
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8> Last errorlog repeat 10 Times
1/1/2000 0:10:8>adjTimeTask fail: no server available
1/1/2000 0:10:8>adjtime task pause 60 seconds
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8>adjTimeTask fail: wrong domain name
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8> Last errorlog repeat 10 Times
1/1/2000 0:10:8>adjTimeTask fail: no server available
1/1/2000 0:10:8>adjtime task pause 60 seconds
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8>adjTimeTask fail: wrong domain name
1/1/2000 0:10:8> No DNS server available
1/1/2000 0:10:8> Last errorlog repeat 10 Times
1/1/2000 0:10:8>adjTimeTask fail: no server available
1/1/2000 0:10:8>adjtime task pause 1 day
1/1/2000 0:10:12> System Error: 64 PC: 80098944
*****************************************************

Please suggest any thing to rectify it...

 

Contacting you ISP for support?