Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Fixed IP - No network

09 Aug 2011   #11
netsrot

Win7 32
 
 

Dear ZyanWu,

First of all. Thank you very much for your help. Much appreciated.

Just a reminder. When I change from dynamic IP to static IP that is ALL I do.
No changes in router, network, firewall, etc settings.

Quote:
When Win7 PC has 192.168.0.60 /24, everything works (file sharing, internet access, ping - all both ways)
As the DHCP range starts with 192.168.0.60 that is what I get when dynamic IP is choosen. When I use 192.168.0.60 as a FIXED IP no network but internet.

Quote:
When Win7 PC has 192.168.0.20 /24, file sharing only works one way (can see shares but cannot share), internet access, ping only from PC7 to any PC-XP but not from any PC-XP to PC7.
FIXED IP set. Can not see shares, filesharing not working, Internet access OK.

Quote:
Basic network map looks like the picture below.
Yes. However don't know about god's gift! If I manage to solve this problem we might install and use Win7 on all our PC's

Enclosing screen shots from DIR-615




Attached Thumbnails
Fixed IP - No network-dir615.jpg   Fixed IP - No network-dir6153.jpg  
My System SpecsSystem Spec
.
09 Aug 2011   #12
ZyanWu

Windows 7 Enterprise x64 SP1
 
 

Just modify the DHCP pool to start from 192.168.0.20 and make a static binding for the Win7 PC.
To do that, edit the "DHCP IP Address Range" and set it to start from 192.168.0.20 to 192.168.0.99.
Check "Enable" in the Add/Edit DHCP Reservations, insert the Win7 PC name in the Computer Name field (WIN7), the IP that you want it to have (192.168.0.20) and the Win7 PC's MAC Address (e0cb4ee605e1) and click SAVE.
That way Win7 PC will always have the address 192.168.0.20 /24 reserved for your PC.

DHCP has up to 255 additional options that can be set and are probably required for a full conectivity so, I'm guessing it's a DHCP option (perhaps some NetBIOS setting) that's helping the Win7 PC with sharing or network discovery. (see DHCP codes and options if you want to learn more about DHCP codes).

And that's it. Set the Win7 PC to get an address via DHCP and it will always get the 192.168.0.20 one. You can also add other PCs there if you want more static bindings.

(BTW, just for my info. Do you have the same network space reserved for the wired PCs and the wireless PCs? And when you tried to ping Win7 PC from and XP PC, did you use a wired or wireless PC?)
My System SpecsSystem Spec
10 Aug 2011   #13
netsrot

Win7 32
 
 

I know I can circumvent the problem as you describe. However I am still puzzeled by the behaviour of Windows 7 on this item.
Using a dynamic preferred! IP and set it to fixed just doesn't work! How strange is that?

The WinXP PC's or the Mac has no reserved IP's on the router and I can set any fixed IP both inside and outside the DHCP range and the full network is accessable by all work stations.

So no solution so far. I was hoping we could install Windows 7 on the other work stations but for the moment we will stick with WinXP and Mac. We need to have fixed IP's on all PC'c so that portforwarding can be applied without hickups.
My System SpecsSystem Spec
.

10 Aug 2011   #14
ZyanWu

Windows 7 Enterprise x64 SP1
 
 

I told you, it must be a hidden DHCP code that the router is sending your PC and that's what is helping it with network connectivity.
If you set the IP manually, that code doesn't get set.

As I said above, if you use the router to reserve DHCP IPs for clients then the clients you choose will always have the IPs you set in that table (it's EXACTLY like having a static IP, but it's configured in the router).

Can you tell me what IPs are you using for your wireless network?
My System SpecsSystem Spec
10 Aug 2011   #15
netsrot

Win7 32
 
 

Quote:
If you set the IP manually, that code doesn't get set
Is this a bug in Windows 7?

As I said I can work around the problem, but had hoped it had worked as expected (WinXP and Mac)

Two wired PC's: 192.168.0.10 and 192.168.0.20
Third PC/Mac (Dual boot) 192.168.0.30
Two wireless PC's : 192.168.0.40 and 192.168.0.50
All fixed IP
My System SpecsSystem Spec
10 Aug 2011   #16
ZyanWu

Windows 7 Enterprise x64 SP1
 
 

Quote   Quote: Originally Posted by netsrot View Post
Is this a bug in Windows 7?
It's not a bug, you just have to set it manually via registry. I don't know which one though.

Quote   Quote: Originally Posted by netsrot View Post
Two wired PC's: 192.168.0.10 and 192.168.0.20
Third PC/Mac (Dual boot) 192.168.0.30
Two wireless PC's : 192.168.0.40 and 192.168.0.50
All fixed IP
Well, that's a huge problem. Your router shouldn't let you set the same network on 2 different interfaces without bridging them.
Routing problems occur when you do that. (I'm 95% sure that's the reason why the ping didn't work.)

For example, if you send a packet to the 192.168.0.0 network, which one will the router use? The wired or the wireless? It can't decide and problems occur.


LE: Wait a second. You're not trying to set the same IP address (192.168.0.20) for 2 different PCs, are you?
As I can see from your post, 192.168.0.20 already exists on your network on a WinXP PC.
My System SpecsSystem Spec
10 Aug 2011   #17
netsrot

Win7 32
 
 

Quote:
LE: Wait a second. You're not trying to set the same IP address (192.168.0.20) for 2 different PCs, are you?
As I can see from your post, 192.168.0.20 already exists on your network on a WinXP PC
Of course it is not the same IP on any of the PC's. I think you getting confused.
I tried Win7 on a spare HDD and put it into the PC that is normally WinXP 192.168.0.20

One wired PC's WinXP: 192.168.0.10
Second wired PC WinXP/Win7 tryout 192.168.0.20
Third PC WinXP/Mac (Dual boot) 192.168.0.30
Two wireless PC's WinXP : 192.168.0.40 and 192.168.0.50
With fixed IP at WinXP/Mac configuration. Network/internet accessability.
With fixed IP at WinXP/Mac/Win7 configuration. Network accessability on WinXP/Mac part. No network access to Windows 7. Internet on all WinXP/Mac/Win7

Quote:
It's not a bug, you just have to set it manually via registry. I don't know which one though.
Who knows about this setting?
My System SpecsSystem Spec
11 Aug 2011   #18
ZyanWu

Windows 7 Enterprise x64 SP1
 
 

Basically, if your wired lan and wireless lan are bridged then your network is fine and everything else's fine. I can't pinpoint the problem.

I've forwarded your question to Microsoft's Technet forums.
My System SpecsSystem Spec
12 Aug 2011   #19
fyrekrig

Win 7
 
 

Still waiting for a solution to this problem, but it looks we are still stuck.

Quote:
It's not a bug, you just have to set it manually via registry. I don't know which one though.
If this is the solution how come nobody comes forward?
My System SpecsSystem Spec
15 Sep 2011   #20
jefe

Win 7 x64
 
 

ZyanWu....I was having a smiliar problem where a static IP wouldn't work on my Win 7 Pro machine. You're tip to enable NetBios fixed it.

Thank you.
My System SpecsSystem Spec
Reply

 Fixed IP - No network




Thread Tools




Similar help and support threads
Thread Forum
Assigning fixed IP addresses to devices in home network
G'day, I have a home network comprising of: 1 x desktop 3 x laptop 1 x network printer During bootup, these devices are assigned dynamic IP addresses, typically 192.168.1.x, where x is typically between 1 and 7.
Network & Sharing
Hi users -please post when your problem is fixed (or even not fixed)
Hi everyone now I don't mind spending some time trying to help people and am glad for the hints and fixes I've got off these sites --but it does seem to me to be a trend with some of the newer users that they post a problem --you reply --and these guys never post a follow up --like it worked or...
Chillout Room
fixed BSOD isn't fixed :(
right. i had another thread here but we fixed it. apparently though, we didn't. i just 2 BSOD's in a timespan of about an hour. i didn't package the first dumps, because i hoped that it was just an anomaly... anyway, a .rar is attached, can anyone please look at it? tnx :) P.S i got my first few...
BSOD Help and Support
Wifi DHCP - the second network card on a fixed IP
I warmly welcome I have a problem with configuring network cards WIFI comes nicely with DHCP pool 192.168.0 .* but I have a virtual network adapter "Microsoft Loopback Adapter" in it I have to have a static IP address 2.0.0.5 and set it manually (IPv4)
Network & Sharing
[fixed] Constantly troubleshooting network after boot [/myself]
hardware concerning: ethernet, specifically nforce4 network controller (drivers situation: Assigning pc to static ip of router (wrt54g) ie; 192.168.1.xxx default gateway, and primary dns as 192.168.1.1 problem: upon bootup the network can not find the proper route and has to...
Network & Sharing


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 15:43.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App