Link cai toda hora...

Olá pessoal, estou fazendo um teste de redes, e estou com um problema no link da minha rede wireless, toda hora o link cai.
Segue o Log.


Jul 28 09:41:57 (none) kern.info pppd[7512]: No response to 3 echo-requests
Jul 28 09:41:57 (none) kern.notice pppd[7512]: Serial link appears to be disconnected.
Jul 28 09:41:57 (none) kern.warn pppd[7512]: ipdown......
Jul 28 09:42:00 (none) kern.info pppd[7512]: Terminating on signal 15.
Jul 28 09:42:00 (none) kern.warn pppd[7512]: Couldn't increase MTU to 1500
Jul 28 09:42:00 (none) kern.err pppd[7512]: Couldn't increase MRU to 1500
Jul 28 09:42:05 (none) kern.info pppd[7512]: Terminating on signal 15.
Jul 28 09:42:05 (none) kern.notice pppd[7512]: Connection terminated.
Jul 28 09:42:05 (none) kern.info pppd[7512]: Connect time 55.0 minutes.
Jul 28 09:42:05 (none) kern.info pppd[7512]: Sent 1542314 bytes, received 63670792 bytes.
Jul 28 09:42:05 (none) kern.info pppd[7512]: Connect time 55.0 minutes.
Jul 28 09:42:05 (none) kern.info pppd[7512]: Sent 1542314 bytes, received 63670792 bytes.
Jul 28 09:42:05 (none) kern.info pppd[7512]: Exit.
Jul 28 09:42:14 (none) kern.info pppd[8621]: RP-PPPoE plugin version 3.3 compiled against pppd 2.4.2b1
Jul 28 09:42:14 (none) kern.notice pppd[8621]: pppd 2.4.2b1 started by root, uid 0
Jul 28 09:42:14 (none) kern.info pppd[8621]: PPP session is 12697
Jul 28 09:42:14 (none) kern.info pppd[8621]: Using interface ppp0
Jul 28 09:42:14 (none) kern.notice pppd[8621]: Connect: ppp0 <--> eth1
Jul 28 09:42:14 (none) kern.warn pppd[8621]: Couldn't increase MTU to 1500
Jul 28 09:42:14 (none) kern.err pppd[8621]: Couldn't increase MRU to 1500
Jul 28 09:42:15 (none) kern.warn pppd[8621]: ipup......
Jul 28 09:42:15 (none) kern.notice pppd[8621]: local IP address 189.15.105.152
Jul 28 09:42:15 (none) kern.notice pppd[8621]: remote IP address 200.225.196.253
Jul 28 09:42:15 (none) kern.notice pppd[8621]: primary DNS address 200.225.197.34
Jul 28 09:42:15 (none) kern.notice pppd[8621]: secondary DNS address 200.225.197.37
Jul 28 09:42:26 (none) kern.debug kernel: htb*g j=4791198
Jul 28 09:42:26 (none) kern.debug kernel: htb*r7 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r6 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r5 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r4 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r3 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r2 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r1 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r0 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10002 m=2 t=14017 c=14017 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10003 m=2 t=13434 c=13434 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10004 m=2 t=49152 c=49152 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10005 m=2 t=18677 c=18677 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10006 m=2 t=78074 c=78074 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10007 m=2 t=8840 c=8840 pq=0 df=0 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*g j=4791228
Jul 28 09:42:26 (none) kern.debug kernel: htb*r7 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r6 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r5 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r4 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r3 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r2 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r1 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*r0 m=0
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10002 m=2 t=14017 c=14017 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10003 m=2 t=13434 c=13434 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10004 m=2 t=49152 c=49152 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10005 m=2 t=18677 c=18677 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10006 m=2 t=78074 c=78074 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:26 (none) kern.debug kernel: htb*c10007 m=2 t=14359 c=14359 pq=0 df=60000000 ql=0 pa=0 f:
Jul 28 09:42:27 (none) kern.info kernel: HTB init, kernel part version 3.6
Jul 28 09:42:27 (none) kern.debug kernel: htb*g j=4791298
Jul 28 09:42:27 (none) kern.debug kernel: htb*r7 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r6 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r5 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r4 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r3 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r2 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r1 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r0 m=0
Jul 28 09:42:27 (none) kern.info kernel: HTB init, kernel part version 3.6
Jul 28 09:42:27 (none) kern.debug kernel: htb*g j=4791333
Jul 28 09:42:27 (none) kern.debug kernel: htb*r7 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r6 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r5 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r4 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r3 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r2 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r1 m=0
Jul 28 09:42:27 (none) kern.debug kernel: htb*r0 m=0
Jul 28 09:42:28 (none) kern.info kernel: HTB init, kernel part version 3.6
Jul 28 09:42:28 (none) kern.debug kernel: htb*g j=4791367
Jul 28 09:42:28 (none) kern.debug kernel: htb*r7 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r6 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r5 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r4 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r3 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r2 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r1 m=0
Jul 28 09:42:28 (none) kern.debug kernel: htb*r0 m=0

Se alguem tiver algo para me ajudar eu ficaria muito grato...

E mais uma coisa, eu queria montar um servidor de internet a rádio, comprei a placa de rede dwa-520 da D-link, fiz a coisa certa???

Obrigado desde já.

ta usando linux kra??
instala mikrotik

Agora que danou tudo, cai de 1 em 1 minuto.
é um ap eu não tenho nem clientes conectados nele...
só eu mesmo de testes.
já arrumei um server pra instalar mikrotik, mas queria saber se a placa d-link dwa-520 tem compatibilidade com mikrotik, tem como vcs me falerem?
Obrigado

o o o o
calma ai bixo

se nao me engando a 520 nao tem suporte nao somente a 520 extreme,

por via das duvidas olha o chipset dela
se for b1 ou b3 tem suporte agora se for c1 ou c alguma coisa
nao vai funciona

b-Atheros
c-Ralink