PVC being Deactivated on Old firmwares

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PVC being Deactivated on Old firmwares

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
PVC being Deactivated on Old firmwares
PVC being Deactivated on Old firmwares
2017-09-24 16:05:30
Model :

Hardware Version :

Firmware Version :

ISP :

Hello,

I work in a local ISP.there is a problem with a lot of old TPLink ADSL Modems from 21 sep 2017. the internet LED goes off on them. after checking the configuration we found out that the pvc has been deactivated.
we reconfigured the modems and enabled ACL, Firewall ,SPI and changing the default login password but after a few hours same has happened.
the only thing these modems have in common is that their firmwares are older than 2016. we could upgrade the N series(like 8901N, 8951ND, 8151N) with 2016 firmwares but for G series(like 8901G,8101G) the latest firmware is released in 2012 and couldn't help resolve the problem.
any suggestions would be appreciated

Regards
Amin.
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Re:PVC being Deactivated on Old firmwares
2017-09-25 00:27:47
I've found something new in deactivated modems.
the "NTP Server Address" field in time zone page has been set to the following line :

`busybox cat /dev/urandom >/dev/roo

thanks
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Re:PVC being Deactivated on Old firmwares
2017-09-27 22:25:09
Hi,
got the same issue here, pvc being deactivated in a specific time , and ggt the ntp field with busybox command.
is that a kind of hacking,
Have you resolved the issue? please share.
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