bsnl broadband: able to ping but unable to browse


Using BSNL broadband Nokia Siemens SL2_141 WiFi modem configured in ppp_oe mode. Am able to ping the modem and websites like google, etc from PC but am unable to browse. Tried with static IP as well. Fresh install of WinXp SP2. PC Config: Intel Atom 1.4, 1GB, 160 GB HDD, Realtek RTL 8139 / 810x NIC. Am able to browse from laptop as well as phone. Only unable to browse form PC. Tried all firewall settings. Trace Route also no problems from PC. Unable to connect to modem from browser ( PC Only), also unable to telnet to modem from PC. Everything works fine from laptop ( WiFi and wired ). Also able to connect laptop and two phones at the same time. Problem only from PC.


Using BSNL broadband Nokia Siemens SL2_141 WiFi modem
RTL 8139 / 810x NIC.
Am able to browse from laptop as well as phone.
Only unable to browse form PC.
Unable to connect to modem from browser ( PC Only)
everything works fine from laptop ( WiFi and wired ).
Also able to connect laptop and two phones at the same time.
Have you enabled DHCP in router ?
Compare the tcp/IP settings of Laptop (wired))and desktop.

select obtain Ip address automatically.

Check in network settings Realtek is enabled ( click Advanced "")
try Driver update trouble shooting.


If its windows xp try a winsock reset. Go to Command PromptType the commandNetsh winsock resetand restart the computer


Hi Ajay,

Thanks for the prompt reply. I have tried using Firefox, Opera, Chrome and Netscape but the same result. They all give a similar msg. " Opening website" OR " website found , waiting for reply". I dont think it is a issue with the browser as I am unable to even telnet or ftp ( cmd prompt ) form the PC . They also say connected and then nothing, no login prompt. I have duplicated the settings from laptop when connected via lan cable. Have also reset Xp winsoc. but same result. Please do let me know IF there is anything else that I might try. If I connect a USB modem like Reliance or Tata Indicom Photon + it works fine ( Borrowed from friends ). Really strange.


Sorry forgot to mention that DHCP is enabled , browser is automatically picking up settings and have also installed the latest driver from the Realtek website.


Start RUN type cmd ok new window type ipconfig /all post data here. ( for desktop with ethernet card)


Folowing is the result of ipconfig /all with static IP assigned with open DNS.

(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Administrator>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : compaq
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection 5:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast Ethernet NIC

Physical Address. . . . . . . . . : 00-23-7D-48-60-3C
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . :
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . :

C:\Documents and Settings\Administrator>

When I configure to obtain IP automatically also i get DHCP assigned IP with DNS as my router Ip address changed from default on suggestion of BSNL Helpdesk). I face the same problem when I assign the default IP to the router as well.


Thanks in advance Essbebe


The default gateway cannot have two Ip addresses.
If in WIFI mode it is and you
access the modem settings, same thing
should show for desktop also

Check under Advanced Option LAN.
Lan address should be

the DHCP enabled range is out of range.
Change it to to

Check this link for correct settings for sl2_141
similar hardware board and modem settings pages. confirm.


Hi Essbebe,

I changed the router ip to only because the guy at BSNL who handed over the modem to me asked me to do so. I have since changed it back to default and have assigned an DHCP range from 2-10.
However even with router IP assigned as and my laptop picking up an IP of OR 61( When PC is running), I am still able to browse form the laptop connected via WiFi or lan cable.
Here is the info form the router page:

Device Info

Board ID: 96338W
Software Version ID: V53.4.01.01
Firmware Version: 0940_081507-3.08L.BSNL_02.
Bootloader (CFE) Version: 1.0.37-8.7
Wireless Driver Version:

LAN IP Address:
MAC Address: 00-1e-40-06-c3-d2
Default Gateway:
Primary DNS Server:
Secondary DNS Server:

DSL Status

Mode ADSL2+

Downstream Upstream
Rate (Kbps) 2044 507
SNR Margin (dB) 31.6 23.7
Attenuation (dB) 36.0 21.3
Attainable Rate (Kbps): 10928 876
Output Power (dBm) 12.8 0.0
Super Frames 197076 187353
Super Frame Errors 0 0


Not clear what is the present problem now.
Post ipconfig all data for
both Desktop and laptop.

If still desktop not working for internet:
Start RUN type cmd Ok
New window
Type ipconfig /all

Copy paste data here.

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