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[warenbe]

Hello
first sorry if i'm not good enough in english, i'm from france. tell me if you don't understand something.

I bought a DWR-921 and i'm using it with 4G carriere named "Free"
i have some problems...

first i'm unable to find the default login/password for telnet connection. i'm able to open the connection bug then i'm stuck

second, with the latest firmware (   V3.01 / 2016-07-15 ) i cannot change the "keep alive" destination. by default it is 8.8.8.8... and i have lot of problem with 8.8.8.8

because "free" does not like google, and google does not like free, (peering issues between them) i have almost 80% of lost packets. and so the dwr think i'm disconnected and re-init the connection.
so every 3 minuts i'm disconnected
i found the logs of the dwr (found using informations here https://frankowicz.me/backdoor-i-pare-ciekawostek-w-serii-routerow-d-link-dwr/) and i can see:

Oct 14 20:58:44 login[2312]: 'root' on 'pts/0' auth failed 3 times...
Oct 14 20:58:47 MultiWANChk2: chkDestFunction[933]: usbnet0 Destination 8.8.8.8 is unreachable!
Oct 14 20:58:50 MultiWANChk2: chkDestFunction[933]: usbnet0 Destination 8.8.8.8 is unreachable!
Oct 14 20:58:53 MultiWANChk2: chkDestFunction[933]: usbnet0 Destination 8.8.8.8 is unreachable!
Oct 14 20:58:56 MultiWANChk2: chkDestFunction[933]: usbnet0 Destination 8.8.8.8 is unreachable!
Oct 14 20:58:59 MultiWANChk2: chkDestFunction[933]: usbnet0 Destination 8.8.8.8 is unreachable!
Oct 14 20:58:59 MultiWANChk2: chkDestFunction[960]: index 13 not alive!
Oct 14 20:58:59 MultiWANChk2: index: 13 not alive. 0,0, retry: 0 
Oct 14 20:58:59 commander: WAN 14 disconnected 
Oct 14 20:58:59 commander: Delete WAN 14 routing rule, result = 1
Oct 14 20:58:59 commander: stop_multiwan_type: wan_type = 16, index = 0
Oct 14 20:58:59 commander: Stop WANTYPE 3G 0
Oct 14 20:58:59 O3G/script: Stop 3G multiwan! Index_usb=0 Index_3G=0
Oct 14 20:59:00 O3G/SCRIPT: Shutting down QMI link...
Oct 14 20:59:00 udhcpc[428]: Received SIGTERM

As you can see, lot of packets loss mean disconnection
i would like to change this IP from 8.8.8.8 to one in the "free" network i'm sure i'll never have problems.
but i cannot !!

on this firmware, this has been removed !!
as you can find in the latest firmware found here (actually unable to get it..) ftp://ftp.dlink.de/dwr/dwr-921/driver_software/DWR-921_fw_revc_301b06_ALL_multi_20160715.zip
on the release note it's written that the keep alive IP is by default on 8.8.8.8 and the configuration page has been hidden !!

OK GREAT !
so how can i change this where is this hidden page ?
I tried to go to an older firmware, but with older firmware i'm unable to connect with 4G LTE and only 3G

help

[FurryNutz]

This model is not sold here in the NA region so we have not experience with this unit. I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.
Let us know how it goes please.

[warenbe]

Hello
mmmmhh it's late here
so bad nobody can help me...

lot of ppl on internet are complaining about this model. i think this is not a very good model
this explain the low price

[FurryNutz]

Try support tomorrow.

[warenbe]

Finally i found the way to change it

it was just hidden in the web page using "display: none" css.
after changing from 8.8.8.8 to another IP apparently it's better !
i don't see anymore "destination unreachable" in the syslog and the router seems to keep the connection open. i'll test more to check if ok.

[FurryNutz]

Let us know how it goes...

[warenbe]

it's OK

Connection Type: 4G LTE /3G
Service Type: 4G
Network Name: Free
Link Status: Established.
Connection Time: 01:49:26

01h49
it's the longest connection i got since 2 weeks !

i dont understand why dlink removed this option... but now it works

[FurryNutz]

Enjoy.