-----------
Tentative Conclusion 1: My modem “A” has failed
- Doesn’t achieve internet access at my friend’s house, while his identical modem “B” works fine
- Several lights are OFF for modem A that are ON for modem B
- My browser can locate modem B at 192.168.1.1, but not modem A
- I can ping modem B at 192.168.1.1, but not modem A
- No LAN connection when directly connecting the PC to the modem
------------
Tentative Conclusion 2: ISP problems at my house
- No internet access at my house with “good” modem B, even with router bypassed
------------
Equipment and Software:
- Huawei SmartAX MT800 ADSL Modem
- Linksys WRT54G Router (wireless feature ignored for these checks)
- MS Windows XP SP2
------------
Here are the seven basic checks that I've already done, with symptoms observed. Note that the description might be easier to follow in an Excel file, but I couldn't attach it.
------------
1. Check phone line
- Can send and receive calls OK
- Not sure how to check ISP service without also using my modem (or a friend’s)
------------
2. At my friend’s house, replaced his modem B with my modem A
- Achieved internet access with modem B, but not with modem A
------------
3. Check lights on modems
- Modem A
** Power = Green
** ADSL Link = off
** ADSL Act = off
** LAN Link = off
** LAN Act = flashing Green
- Modem B
** Power = Green
** ADSL Link = Green
** ADSL Act = flashing Green
** LAN Link = Amber
** LAN Act = flashing Green
------------
4. At my house, replaced my modem A with my friend’s modem B
- No internet connection with either A or B
- LAN Speed: 100 Mbps / Status: Connected (same for both A and B)
- Browser can locate modem B at 192.168.1.1, but cannot locate modem A
- Can ping modem B at 192.168.1.1, but cannot ping modem A
- Router screens at 192.168.15.1 seem normal (with both A and B), except …
** Router Status – Current Time: Not available
** Voice Status – Provisioning Status: Provisioning Failed
- Earlier this week, Router screens at 192.168.15.1 also exhibited the following errors with modem A:
** Internet IP Address: NA
** Subnet Mask, Default Gateway, DNS 1 all indicated 0.0.0.0
------------
5. Connect my PC directly to modem A (bypass router)
- No internet connection
- LAN Speed: 100.0 Mbps / Status: Limited or No Connectivity
- IP address is shown as 169.254.163.147
- Can ping modem at 169.254.163.147
- Browser cannot locate modem at 169.254.163.147
- No LAN connection (packets sent but none received)
-----------
6. Connect my PC directly to modem B (bypass router)
- No internet connection
- LAN Speed: 100.0 Mbps / Status: Connected
- IP address is shown as 192.168.1.2
- Can ping modem at 192.168.1.2
- Browser can locate modem at 192.168.1.2
------------
7. I also checked these actions, which didn't fix the problem …
- Disabled firewalls in Windows XP and MacAfee Security Center
- Performed a Windows System Restore to the date with my last successful internet connection
------------
Do you agree with my tentative conclusions, or are there other things I need to check first?
Sign In
Create Account
