disconnessioni dlink dsl-g624t

[HWcalabros]

ho comprato questo router e sin da subito problemi...

mi si disconnette di continuo ad intervalli casuali (Es. dopo 5 minuti, poi dopo 2 ore, poi dopo 7 minuti, poi dopo 6 ore, ecc.)
credo di aver letto tutto il possibile sui vari tread, ho aggiornato firmware, ho cambiato configurazioni ,sto diventando matto ma non sono riuscito a risolvere il problema.
si accetta ogni tipo di suggerimento.... grazie a tutti

vi do sommariamente la configurazione del router:
DHCP disabilitato;
Access Point: attivo (provato sia con che senza WEP e WPA)
DMZ: non attivo
Firewall: non attivo
routing: non attivo
connessione a libero usando protocollo PPPoE LLC
NAT: abilitato
ip control: dynamic ip
DDNS: disabilitato
UPnP: abilitato (provato anche disabilitato)
regole su virtual server: Porta 1755 TCP, porta 1756 UDP (per emule)
QoS: disabilitato
il resto disabilitato

prima del log trascrivo l'adsl status con i valori di attenuazione rilevati dal router...

ADSL physical layer status.

ADSL Firmware Version: 6.01.00.06 - 6.01.00.06 - 6.00.04.00 Annex A - 01.07.2b - 0.54
ADSL Software Version: V3.00B01T01.SP-A.20060612
Line State Connected
Modulation ADSL_G.dmt
Annex Mode ANNEX_A
Max Tx Power -38 dBm/Hz

Item Downstream Upstream Unit
SNR Margin 6 24 dB
Line Attenuation 49 30 dB
Data Rate 4832 320 kbps

controllando qua e là mi è sembrato che i valori sono bassi soprattutto in down stream

per gli esperti del settore, riporto anche parte del log del router. già da subito si nota la prima singolarità: la data di avvio, nonostante l'abbia settata varie volte rimane sempre il 1 gennaio ore 12...

Jan 1 12:26:45> pingStat 2, oamHdr 330 result 0
Jan 1 12:26:45> pingStat 2, oamHdr 3B0 result 0
Jan 1 12:26:45> pingStat 2, oamHdr 8002B0 result 0
Jan 1 12:26:45> pingStat 2, oamHdr 800330 result 0
Jan 1 12:26:45> pingStat 2, oamHdr 8003B0 result 0
Jan 1 12:26:45> ppp0
Jan 1 12:26:45> pppd 2.4.1 started by root, uid 0
Jan 1 12:26:45> Got connection: 5426
Jan 1 12:26:45> Saved Session ID: 0
Jan 1 12:26:45> Connecting PPPoE socket: xx:xx:xx:xx:xx:xx 5426 nas0 0x1000d388
Jan 1 12:26:45> Connect: ppp0 {--} nas0
Jan 1 12:26:46> ppp0
Jan 1 12:26:46> WAN IP address xxx.xx.xxx.xxx
Jan 1 12:26:46> PPPoE Connect with IP Address xxx.xxx.xxx.xxx
Jan 1 12:26:46> PPPoE Connection Successfully Established
Jan 1 12:26:46> PPPoE Connect with Gateway IP Address: xxx.xxx.xxx.xxx
Jan 1 12:26:46> WAN gateway xxx.xxx.xxx.xxx
Jan 1 12:26:46> primary DNS address xxx.xxx.xxx.xxx
Jan 1 12:26:46> secondary DNS address xxx.xxx.xxx.xxx
Jan 1 12:35:40> DSL out of sync
Jan 1 12:35:53> DSL Carrier is down
Jan 1 12:35:58> DSL in Sync
Jan 1 12:36:03> DSL Carrier is up
Jan 1 12:36:03> sar read trained mode (1)(ADSL_G.dmt)
Jan 1 12:36:04> PPPD Terminated Through Signal
Jan 1 12:36:04> Connection terminated.
Jan 1 12:36:04> Doing disconnect
Jan 1 12:36:04> pingStat 2, oamHdr 230 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 200 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 280 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 240 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 260 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 600 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 230 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 800230 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 2B0 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 330 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 3B0 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 8002B0 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 800330 result 0
Jan 1 12:36:04> pingStat 2, oamHdr 8003B0 result 0
Jan 1 12:36:04> ppp0
Jan 1 12:36:04> pppd 2.4.1 started by root, uid 0
Jan 1 12:36:05> Got connection: 5526
Jan 1 12:36:05> Saved Session ID: 0
Jan 1 12:36:05> Connecting PPPoE socket: xx:xx:xx:xx:xx:xx 5526 nas0 0x1000d388
Jan 1 12:36:05> Connect: ppp0 {--} nas0
Jan 1 12:36:06> ppp0
Jan 1 12:36:06> WAN IP address yyy.yy.yyy.yyy
Jan 1 12:36:06> WAN gateway xxx.xxx.xxx.xxx
Jan 1 12:36:06> primary DNS address xxx.xxx.xxx.xxx
Jan 1 12:36:06> secondary DNS address xxx.xxx.xxx.xxx
Jan 1 12:36:06> PPPoE Connect with IP Address yyy.yyy.yyy.yyy
Jan 1 12:36:06> PPPoE Connection Successfully Established
Jan 1 12:36:06> PPPoE Connect with Gateway IP Address: yyy.yyy.yyy.yyy
Jan 1 12:37:55> DSL out of sync
Jan 1 12:38:03> DSL Carrier is down
Jan 1 12:38:12> DSL in Sync
Jan 1 12:38:13> DSL Carrier is up
Jan 1 12:38:14> sar read trained mode (1)(ADSL_G.dmt)
Jan 1 12:38:15> PPPD Terminated Through Signal
Jan 1 12:38:15> Connection terminated.
Jan 1 12:38:15> Doing disconnect
Jan 1 12:38:15> pingStat 2, oamHdr 230 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 200 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 280 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 240 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 260 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 600 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 230 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 800230 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 2B0 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 330 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 3B0 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 8002B0 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 800330 result 0
Jan 1 12:38:15> pingStat 2, oamHdr 8003B0 result 0
Jan 1 12:38:15> ppp0
Jan 1 12:38:15> pppd 2.4.1 started by root, uid 0
Jan 1 12:38:15> Got connection: 5726
Jan 1 12:38:15> Saved Session ID: 0
Jan 1 12:38:15> Connecting PPPoE socket: xx:xx:xx:xx:xx:xx 5726 nas0 0x1000d388
Jan 1 12:38:15> Connect: ppp0 {--} nas0
Jan 1 12:38:16> ppp0
Jan 1 12:38:16> WAN IP address zzz.zzz.zzz.zzz
Jan 1 12:38:16> PPPoE Connect with IP Address xxx.xxx.xxx.xxx
Jan 1 12:38:16> PPPoE Connection Successfully Established
Jan 1 12:38:16> PPPoE Connect with Gateway IP Address: zzz.zzz.zzz.zzz
Jan 1 12:38:16> WAN gateway zzz.zzz.zzz.zzz
Jan 1 12:38:16> primary DNS address xxx.xxx.xxx.xxx
Jan 1 12:38:16> secondary DNS address xxx.xxx.xxx.xxx
Jan 1 12:45:39> DSL out of sync
Jan 1 12:45:43> DSL Carrier is training
Jan 1 12:45:53> DSL Carrier is down
Jan 1 12:45:57> DSL in Sync
Jan 1 12:46:03> DSL Carrier is up
Jan 1 12:46:03> sar read trained mode (1)(ADSL_G.dmt)
Jan 1 12:46:05> PPPD Terminated Through Signal
Jan 1 12:46:05> Connection terminated.
Jan 1 12:46:05> Doing disconnect


ecc. ecc.

grazie

[bernabei2688]

prova il fw 720 allad-link italia.prova a cambiare qualche settaggio:
ip-statico
vpn-attiva
firewall-abilitato
protocollo-pppoa/vcmux