Coupure toutes les 3 minutes : No Ranging Response received - T3

Bonjour,

Je fait appele à votre aide j'ai un problème de réseaux ma connection se coupe toutes les 3 minutes ou 5 minutes pendant plusieurs minutes ou heures.
Le réseaux est dans un immeuble Thailandais dure de trouver de l'aider et des gens compétent ici, La connection Cisco Cable Modem je n'y connais pas grand chose en réseaux alors je vois met ci joint ici le log d'erreur que j'ai en permanence :

Wed Aug 26 14:19:32 2015 82000500 Critical (3) Started Unicast Maintenance Ranging - No Response received - ...
Wed Aug 26 14:14:27 2015 73040100 Notice (6) TLV-11 - unrecognized OID
Wed Aug 26 14:14:09 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:13:50 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:13:50 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:13:04 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:13:04 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:12:24 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:12:24 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:11:40 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:11:40 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:11:01 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:11:01 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:10:28 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:10:28 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:08:26 2015 85000100 Critical (3) No UCD's Received - Timeout
Wed Aug 26 14:09:01 2015 84000200 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...
Wed Aug 26 14:08:15 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:08:15 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:07:46 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:07:46 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:07:03 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:07:03 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:06:38 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 14:06:38 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:06:02 2015 82000600 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries...
Wed Aug 26 14:06:02 2015 82000500 Critical (3) Started Unicast Maintenance Ranging - No Response received - ...
Wed Aug 26 13:47:50 2015 73040100 Notice (6) TLV-11 - unrecognized OID
Wed Aug 26 13:47:30 2015 82000200 Critical (3) No Ranging Response received - T3 time-out
Wed Aug 26 14:11:07 2015 84000100 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q...
Wed Aug 26 13:47:10 2015 82000300 Critical (3) Init RANGING Critical Ranging Request Retries exhausted
Wed Aug 26 13:47:10 2015 82000200 Critical (3) No Ranging Response received - T3 time-out

C'est très désagréable la connection se coupe tous le temps. Je ne sait pas d'ou ca vient j'ai essayer de redemarrer les rooter, deux Linksys WRT54GL.

Vous trouverez d'autre information ci dessous concernant le signal de ma connection

Downstream Channel
The data shown in the table below provides information about the signal coming from the network to your cable modem.

Downstream Status

Operational
Channel ID

6
Downstream Frequency

610000000 Hz
Modulation

256QAM
Bit Rate

42884296 bits/sec
Power Level

7.4 dBmV
Signal to Noise Ratio

38.2 dB


Upstream Channel
The data shown in the table below provides information about the signal being transmitted to the network from your cable modem.

Upstream Status

Operational
Channel ID

2
Upstream Frequency

29900000 Hz
Modulation

64QAM
Symbol Rate

5120 Ksym/sec
Power Level

46.5 dBmV



Voila je n'y connais pas grand chose, cependant les chiffres concernant le signal downstream et upstream change si la connection est entrain de marcher ou non, les chiffres indiquer ici sont lorsque la connection est en état de marche

Cordialemant Arnaud