MCD5.0 SP1 and 5320's DHCP

[ASCSTech]

Guys having real issues with 5320's working at remote sites now that we have gone to MCD5.0.
Our sites are all within our private network and they use the Teleworker option with the private IP of the controller to communicate and get their upload.
However on going to MCD5.0 the 5320 handsets just sit there at DHCP Discovery, but only when on a managed switch that has VLAN's enabled. The phones are always in the default VLAN and we just cannot get them to work.
I know there is a MITEL article on this but it does not help.
Has any one got any ideas on how i can configure the phone or the switch to get around the DHCP Discovery.
By the way the DHCP server is a WAN device and does not have the option to add DHCP Options. the ARP table shows that it has allocated the IP to the phone but the phone doesn't seem to acknowledge this.

 

[wireman50]

You can put a fixed IP into the phone manually rather than use DHCP (IIRC you hold down the up and down keys whilst booting then scroll to IP settings)

I would check the options in the MCD DHCP server again and make sure it it has had the Vlan settings removed from option 125 (assuming it is using option 125).

 

[sarond]

Have you looked at this article.

http://www.tek-tips.com/viewthread.cfm?qid=1677866

If you are on a private network you might be able to program the switch to forward dhcp requests for the voice VLAN to the 3300 and program a different dhcp scope for that network.

What type of switch are you using?