Solved Machine does not get IP at startup

N

nmrm

Member
Hello,

I have a small problem: when I reboot my computer I do not always get a valid IP from my router hub without having to type "ipconfig /renew" at the command line; or without obtaining a new IP address or reload network interface in diagnose and repair connection problems; or restarting the DHCP Client service.

In resume: I generally cannot access internet at startup of vista because the DHCP does not assign me a valid private IP to access outside internet.

Is there any fix to this problem?
Has this problem already been reported?
What is the cause?

Thanks for any help, resolution or fix to this problem,
Kind regards,
Nuno Magalhães.
 

My Computer

System One

My Computer

System One

  • Manufacturer/Model
    Emachine ET 1161-05
    CPU
    AMD Athlon 64 LE-1640
    Motherboard
    eMachines MCP61PM-GM (Socket AM2 )
    Memory
    2.00 GB Dual-Channel DDR2 @ 387MHz (6-6-6-18)
    Graphics Card(s)
    Acer E181H (1280x768@60Hz) 128MB GeForce 6150SE nForce 430 (
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    Name Acer E181H on NVIDIA GeForce 6150SE nForce 430
    Screen Resolution
    1280x768 pixels
    Hard Drives
    ST316081 5AS SCSI Disk Device
    PSU
    MCP61PM-GM 9000 NVIDIA Chipset Model MCP61 Chipset Revisio
    Case
    Tower
    Cooling
    Fan Speed 1247 RPM
    Keyboard
    Standard PS/2 Keyboard
    Mouse
    PS/2 Compatible Mouse
    Internet Speed
    http://www.speedtest.net/result/1538974261.png
I think that fixed it.
Did lots of reboots and shutdowns and got internet all the times.

By the way, what DNS has to do with DHCP client getting an IP address?
Don't know if it's of any interest but I'm sure the problem occurred right after I set the DNS resolver IP addresses to fixed IP addresses in the Local Area connection IPv4 properties.

Kind regards,
Nuno Magalhães.
 

My Computer

System One

nmrm said:
I think that fixed it.
Did lots of reboots and shutdowns and got internet all the times.

By the way, what DNS has to do with DHCP client getting an IP address?
Don't know if it's of any interest but I'm sure the problem occurred right after I set the DNS resolver IP addresses to fixed IP addresses in the Local Area connection IPv4 properties.

Kind regards,
Nuno Magalhães.
Click to expand...

DNS doesn't really have anything to do with DHCP. DNS is responsible for converting hostnames to IP addresses. DHCP is used to assign dynamic IP addresses, and their corresponding subnet masks, to computers running TCP/IP within it's network.

How is your router DHCP configured? Could you take a few screenshots of the router page for us please? :)

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
What I thought was wrong: guess what? This afternoon I turned on my computer and no internet (event with ipconfig /flushdns) and reboot. So it has nothing to do with it. Sorry for my early reply.

What info do you want to know? I don't think there's the possibility of configuring DHCP in my router but I post some screens on attach.

Anyone have any more ideas?

Thanks and Kind regards,
Nuno Magalhães.
 

Attachments

  • ss1.jpg
    ss1.jpg
    85 KB · Views: 49
  • ss2.jpg
    ss2.jpg
    105.6 KB · Views: 40

My Computer

System One

I've attached a batch file that will reset your internet connection, reset your hosts file and flush your DNS. Could you please download it and run it?

Hopefully this should fix your connectivity problems, if not, we'll have to dig deeper.

Tom
 

Attachments

  • Flush DNS and restore HOSTS file.bat
    259 bytes · Views: 77

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
No. That didn't work either. This morning... no internet at startup.
Any other suggestions?

Kind regards,
Nuno Magalhães.
 

My Computer

System One

Hello again,

I noticed an article from microsoft site (Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers) that it states the following:
1) I have to set DhcpConnEnableBcastFlagToggle to 1, but as you can see I don't even have that key
2) If the router doesn't support broadcast I had to set DhcpConnForceBroadcastFlag to 0, instead of step 1

I'm attaching a screenshot without valid ip at startup and another with valid ip at startup.
How can I know if my router supports dhcp broadcast? Is there any GUI friendly way to do this?

Any help appreciated,
Kind Regards,
Nuno Magalhães.
 

Attachments

  • no_valid_ip.jpg
    no_valid_ip.jpg
    111.6 KB · Views: 50
  • valid_ip.jpg
    valid_ip.jpg
    120.1 KB · Views: 37

My Computer

System One

nmrm said:
No. That didn't work either. This morning... no internet at startup.
Any other suggestions?

Kind regards,
Nuno Magalhães.
Click to expand...

nmrm said:
Hello again,

I noticed an article from microsoft site (Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers) that it states the following:
1) I have to set DhcpConnEnableBcastFlagToggle to 1, but as you can see I don't even have that key
2) If the router doesn't support broadcast I had to set DhcpConnForceBroadcastFlag to 0, instead of step 1

I'm attaching a screenshot without valid ip at startup and another with valid ip at startup.
How can I know if my router supports dhcp broadcast? Is there any GUI friendly way to do this?

Any help appreciated,
Kind Regards,
Nuno Magalhães.
Click to expand...

Hello Nuno,

My apologies for the late reply, I'm right in the middle of exams at the moment and most of my time is going towards revision.

Try following the steps outlined in that tutorial to make the key. Sometimes in Windows, if you haven't changed a setting before, there won't be a registry key for it.

To resolve this issue yourself, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps:
Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.

If you are prompted for an administrator password or for confirmation, type your password, or click Continue.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}
In this registry path, click the (GUID) subkey that corresponds to the network adapter that is connected to the network.
On the Edit menu, point to New, and then click DWORD (32-bit) Value.
In the New Value #1 box, type DhcpConnEnableBcastFlagToggle, and then press ENTER.
Right-click DhcpConnEnableBcastFlagToggle, and then click Modify.
In the Value data box, type 1, and then click OK.
Close Registry Editor.
Click to expand...

Then reboot and see if you have the problem. If you still do, change the value data to 0 and reboot again.

Short of getting WireShark on it, I don't know how to check this flag on your router; and I don't even know if WireShark can show this. Is there any settings page on your router which allows you to change the DHCP settings? I would be very surprised if there isn't :)

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
nmrm said:
Thanks, I got my problem fixed.
Good luck to your exam.

Kind regards,
Nuno Magalhães.
Click to expand...

Hello Nuno,

That's great news! I'm glad you managed to resolve the problem :) Would you mind telling us what you did to resolve this problem? So that others experiencing this problem will be able to try the same.

Thanks!

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
nmrm said:
Hi Tom,
It worked with value 1 (created a registry entry DhcpConnEnableBcastFlagToggle with value 1).

Regards,
Nuno
Click to expand...

Hi Nuno,

Thanks for posting back :) I'm sure others experiencing this problem will really appreciate your efforts!

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
I run into this problem every now and then, not as persistent as nmrm does, but it happens. When I went to look for that registry key though, the folder and the key are not present. The folder {GUI} it at the very end. Unfortunately since I don't get the problem as much, I don't want to create the value and risk further destabilization. I guess I'm not pissed enough yet, lol.
 

My Computer

System One

Elitevaz said:
I run into this problem every now and then, not as persistent as nmrm does, but it happens. When I went to look for that registry key though, the folder and the key are not present. The folder {GUI} it at the very end. Unfortunately since I don't get the problem as much, I don't want to create the value and risk further destabilization. I guess I'm not pissed enough yet, lol.
Click to expand...

Hi Elitevaz,

Make a System Restore Point then you're free to play as much as you want with minimal risk :) I don't see why making this key and value would cause instability, but sod's law might have it's way!

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
The big issue is, I can't even tell if it worked, because I encounter the error so infrequent. Right now it's not that big of a deal for me, but about a year or two ago I was getting pretty much on every startup.
 

My Computer

System One

Elitevaz said:
The big issue is, I can't even tell if it worked, because I encounter the error so infrequent. Right now it's not that big of a deal for me, but about a year or two ago I was getting pretty much on every startup.
Click to expand...

If it doesn't occur often enough to test a potential solution then I really don't know how I can help :( Sorry!

Tom
 

My Computer

System One

  • Manufacturer/Model
    Build #1
    CPU
    Intel Core i7 3770K @4.4GHz
    Motherboard
    ASUS P8Z77-V PRO
    Memory
    Corsair Vengeance 2x4GB DDR3 1600MHz Low Profile (White)
    Graphics Card(s)
    Gigabyte Radeon HD 7850 (2GB GDDR5)
    Sound Card
    Integrated on motherboard
    Monitor(s) Displays
    23" LG LCD/LED IPS
    Screen Resolution
    1920*1080
    Hard Drives
    Samsung EVO 128GB SSD
    Seagate Barracuda 2TB 7200rpm
    2x500GB Seagate FreeAgent 5400rpm
    PSU
    Corsair TX650W V2 (80+ Bronze)
    Case
    NZXT Phantom 410
    Cooling
    Corsair H100 Water Cooler, 1x140mm and 1x120mm stock fans
    Keyboard
    Microsoft Desktop 2000 Wireless Keyboard
    Mouse
    Microsoft Desktop 2000 Wireless Mouse
    Internet Speed
    95 Mb/s Download 70 Mb/s Upload
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