No DHCP

06-02-2009, 18:09

Hi,

Intresting one this...

Just got a new router - ZyXel P-660HW-T1.

Installed and working - DHCP server enabled with a pool of 50 IP addresses.

One PC connected gets an IP, along with wireless clients.

However, my PC won't obtain an IP address.

(My PC goes through a 1Gb switch).

So far, I've rulled out Kaspersky IS, Windows Firewall, and the switch / cabling - i.e. - connected the PC direct and tried all the ports on the router.

If I put a static IP, subnet, default gateway and DNS I get net access, can access web and the web interface of the router.

Can't see anything in the logs...

Any ideas??

MovedGoalPosts · 06-02-2009, 18:17

I'd try uninstalling the network drivers, reboot and reinstall.

06-02-2009, 18:35

Done - uninstalled device from DM, keeping drivers...reinstalled - all installed ok but same issues...

LondonRoad · 06-02-2009, 18:38

If you reboot everything and leave the laptop out of the equation, can your PC connect?

06-02-2009, 19:54

Quote:

Originally Posted by harmitage

If you reboot everything and leave the laptop out of the equation, can your PC connect?

No need to reboot - another PC connected wired works perfectly fine in all 4 ports.

Will try Safe Mode with Networking on the PC with issues next...odd that it works with a static and not DHCP!

LondonRoad · 06-02-2009, 20:05

Quote:

Originally Posted by LSainsbury

No need to reboot - another PC connected wired works perfectly fine in all 4 ports.

Will try Safe Mode with Networking on the PC with issues next...odd that it works with a static and not DHCP!

The reason I asked was that I was wondering if it was working as a wireless access point rather than a router. I don't know this particular router you've got so can't tell you where to look to see if a radio button or check box is wrongly selected but that is a symptom of a router acting as a wireless access point. I made that suggestion because if after rebooting you can connect wirelessly with your PC this could discount or perhaps confim that/

06-02-2009, 20:12

Quote:

Originally Posted by harmitage

The reason I asked was that I was wondering if it was working as a wireless access point rather than a router.

It's a router - status says router!

Quote:

Originally Posted by harmitage

I don't know this particular router you've got so can't tell you where to look to see if a radio button or check box is wrongly selected but that is a symptom of a router acting as a wireless access point. I made that suggestion because if after rebooting you can connect wirelessly with your PC this could discount or perhaps confim that/

As I say - works ok from all other PC's / laptops - just the one PC playing up...

LondonRoad · 06-02-2009, 20:21

Sorry misreading you. So it is connecting wirelessly to more than one device at the same time.? I thought the second device could only connect when wired.

Can you swap wireless cards/dongles round or is that too much hassle?

06-02-2009, 20:27

Have two laptop - both work wireless on DHCP

1 Desktop PC - works on DHCP

1 Desktop PC - will not obtain IP via DHCP - put a static IP and it works fine.

idi banashapan · 06-02-2009, 20:30

do you get an IP if you bypass the switch?

LondonRoad · 06-02-2009, 20:32

Quote:

Originally Posted by LSainsbury

Have two laptop - both work wireless on DHCP

1 Desktop PC - works on DHCP

1 Desktop PC - will not obtain IP via DHCP - put a static IP and it works fine.

A strange one, Is it just picking up a 169.X.X.X address when you do an ipconfig/all ?

06-02-2009, 20:33

Quote:

Originally Posted by Bender

do you get an IP if you bypass the switch?

Nope - already ruled that one out by direct standard patch cable.

Bit of a head scratcher uh??!!

Dai · 06-02-2009, 20:36

Have you tried any of the other laptops/pcs wired through the switch?

idi banashapan · 06-02-2009, 20:39

what message are you getting in the system event log? (not the router log, but the computer log)

---------- Post added at 20:39 ---------- Previous post was at 20:37 ----------

i don't suppose the router is only set to dish out DHCP to wireless clients, is it? I doubt the zyxels have the option to split, but take a look...

Jon T · 06-02-2009, 20:39

The 169.x.x.x is an APIPA(automatic private ip addressing) IP address, your computer assigns itself one of these addresses when it can't find a DHCP server.

Did you say you were going to try safe mode with networking? What were the results of this?

On the PC that won't get an IP address, have you ever had Zonealarm or any other firewall software installed on it?

BTW, the way I under stand this is that Lee has got: 2 x wired pc's, both on DHCP, only one working and 2 x laptops on wireless set to DHCP that are working.