PXE-E32: TFTP open timeout

[A.J]

Hello,

 

Recently I upgraded the sccm console/os to 2012 r2 (from 2012) and moved its database to the same server. Site/Components status are all green now and seems to be running normally.

 

Now, I can no longer boot a computer from the network, it fails at PXE-E32: TFTP open timeout.

 

this is what I get in SMSPXE.log:

Client lookup reply: <ClientIDReply><Identification Unknown="0" ItemKey="0" ServerName=""><Machine><ClientID/><NetbiosName/></Machine></Identification></ClientIDReply>
	SMSPXE	9/11/2014 8:57:02 AM	4120 (0x1018)
00:50:56:8B:01:4E, 60910B42-88F3-133F-FDD5-4051870A7410: device is not in the database.	SMSPXE	9/11/2014 8:57:02 AM	4120 (0x1018)
Getting boot action for unknown machine: item key: 2046820354	SMSPXE	9/11/2014 8:57:02 AM	4120 (0x1018)
Client boot action reply: <ClientIDReply><Identification Unknown="0" ItemKey="2046820354" ServerName=""><Machine><ClientID>cb1a346a-d254-4bc9-89be-7c47625cbe34</ClientID><NetbiosName/></Machine></Identification><PXEBootAction LastPXEAdvertisementID="" LastPXEAdvertisementTime="" OfferID="HQ12000D" OfferIDTime="9/10/2014 7:12:00 PM" PkgID="HQ100039" PackageVersion="" PackagePath="http://SCCM/SMS_DP_SMSPKG$/HQ100002" BootImageID="HQ100002" Mandatory="0"/></ClientIDReply>
	SMSPXE	9/11/2014 8:57:02 AM	4120 (0x1018)
00:50:56:8B:01:4E, 60910B42-88F3-133F-FDD5-4051870A7410: found optional advertisement HQ12000D	SMSPXE	9/11/2014 8:57:02 AM	4120 (0x1018)

Here is what I've tried/checked:

Reinstalling DP/WDS multiple times.

Disabling Firewall from all networks.

Setting/Removing DHCP 66/67 options (DHCP is on different server in the same subnet)

Checking Regkey UdpPortPolicy (its 0)

 

 

 

Anything else to try, other than a complete rebuild?

 

Thanks.