Thread: Modem problems

Every few hours, and a lot more frequently during the morning (every 15-20 minutes or so), my internet connection dies.

All the lights on the modem are still on, but there is no internet connectivity.
If I try to reconnect; I get stuck on "dialing" or "connecting to WAN miniport" or "The username and password is invalid on this domain" - either of these errors come up immediately when trying to connect at this point.

The only way to fix this is usually to power cycle my modem - i.e. turn of the power on my modem, wait for 2 minutes, turn it back on, wait for all the lights to come back on then try to connect to BSNL.

I created a thread a few days ago but it got buried (sorry I couldn't find the relevant data at the time, here it is).

Huawei MT841
SNR Up/Down 16 dB /26.5 dB
Attenuation Up/Down 7.0 dB /13.5 dB
DSP Version D.57.2.17
Release Date Jul 19 2005
Operation Mode G.Dmt
EC/FDM Mode : EC mode
Bitswap: Enabled

Light Status:
Power - steady
Link - dim but steady
Acct - blinking rapidly
4 - blinking
WLAN - steady

Power specs on the back of modem - 12 V AC 1.2 A
KTec AC adapter 12V 1200 mA

When I power cycle the modem, Lights Power, 4 and WLAN come on fairly quickly; however link and acct take quite some time (2-3 minutes).

Another question, to power cycle my modem how long do i need to switch it off.

My PC & monitor are connected directly to an APC AVR-Pro UPS
I connected my modem and Cordless phone to a spike strip (extension cord), which is plugged into the UPS.

Last of all occasionally during 6am - 8am the latency to any foreign server shoots up to 500-700 ms (it's usually 300-350ms to USA). Trying to reconnect or switch to open_dns/google_dns repeatedly sometimes fixes the latency; sometimes it does nothing, and at other times the modem goes back to the unresponsive state i mentioned above.

Should I get the modem replaced ? Or is this a normal problem with BSNL modems ? In that case should I just by an ADSL modem from the market ?

suggestion 1.
Try "Always On" PPP/PPPoE mode.
Modem settings seems OK.
suggestion 2;
change dns to google 8.8.8.8 and opendns 208.67.220.220
suggestion 3 ;
in menu any snmp enabled? disable it.

feedback if still problem. confirm LAN mode or wifi mode.
post ipconfig /all

Originally Posted by essbebe

suggestion 1.
Try "Always On" PPP/PPPoE mode.

How do I do this ?

suggestion 2;
change dns to google 8.8.8.8 and opendns 208.67.220.220

I switch between bsnl's dns, googledns and opendns; whichever gives lowest latenchy at the time.

suggestion 3 ;
in menu any snmp enabled? disable it.

I don't see anything like snmp in the control panel, should i look somewhere specific ?

feedback if still problem. confirm LAN mode or wifi mode.
post ipconfig /all

I think it's in LAN mode since I'm not using any kind of wifi

Windows IP Configuration

Host Name . . . . . . . . . . . . : <computer name>
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82566DC-2 Gigabit Network Connection
Physical Address. . . . . . . . . : 00-1C-C0-0C-D8-67
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : <my ip address>
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
Lease Obtained. . . . . . . . . . : Monday, March 22, 2010 8:00:50 PM
Lease Expires . . . . . . . . . . : Monday, March 22, 2010 10:48:50 PM

PPP adapter BSNL:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : <ip address>
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 59.93.242.28
DNS Servers . . . . . . . . . . . : 218.248.255.193
218.248.240.180
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\>

Originally Posted by rsen

How do I do this ?

Refer the link for Multiuser Configuration of Modem -- PPPoE

http://www.calcuttatelephones.com/da...tall/mu07.html

CONFIGURATION
See the FLASH mode also.
Add to book marks if found useful.
2.You have to UNCHECK "Bridged' button
and select PPP/PPPoE mode.
next enter UserID/PW in the wan page.
3.
In ipconfig /all dns as selected should appear.
Also enter in modem menu (uncheck obtain DNS automaticallyand enter the data )
4.
RE: SNMP may NOT be provided in this model.Ignore.
http://img158.imageshack.us/i/wanmp3.jpg/

Is there any other solution other than switching to an always on mode ?

Also, the problem seems to happen almost always between 6am and 9am.

You have to confirm, problem was NOT SOLVED during 6AM to 9AM , by using "Always On " mode.

try to locate the Cordless Phone
Power Adapter ( if smps type) away from the computer. Also the Base Unit of cordless phone.
( what is the frequency mentioned ?)
Does this disconnection/s happen when you get incoming calls or try outgoing calls ?

Originally Posted by essbebe

You have to confirm, problem was NOT SOLVED during 6AM to 9AM , by using "Always On " mode.

try to locate the Cordless Phone
Power Adapter ( if smps type) away from the computer. Also the Base Unit of cordless phone.
( what is the frequency mentioned ?)
Does this disconnection/s happen when you get incoming calls or try outgoing calls ?

The cordless phone/base is far away from the computer/modem.
the power adapter is also far away from the computer/modem.

The disconnections do not seem to have anything to do with incoming/outgoing calls (and when I do use the phone the internet works fine).

Usually what happens is usually between 6am and 9am, there is a sudden loss of internet connectivity; which is fixed by power cycling the modem.

Hmm ok, I will have to try "always on" i guess.

My only reservation with "always on" is that I use torrents/streaming media (particularly radio) a lot either late at night or early in the morning, and I don't really want to risk a spill over; and at the same time I don't want to reboot my PC multiple times every day.

If I do switch to PPoE mode, how do I go back to bridged mode ?