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try taking the leading \ from the path
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Hello, 
 
Currently we are trying to utilize PXE boot across subsets in our environment. Please read below for more information 
 
Current network environment: 
<a href="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426695/ubnt--enviornemnt.png" target="_blank" title="ubnt--enviornemnt.png (66 KB)"><img alt="ubnt--enviornemnt.png" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2019/07_w29/800_1426695/ubnt--enviornemnt.png" /></a> 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The USG Router and Switches are assigned static IP addresses listed above 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The USG router has networks/vlans created on them via the UBNT controller UI (v5.10.23.0) 
<a href="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426696/ip-scheme.png" target="_blank" title="ip-scheme.png (28 KB)"><img alt="ip-scheme.png" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2019/07_w29/800_1426696/ip-scheme.png" /></a> 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The USG Router is responsible for DHCP for each network 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Our WDS/MDT server is 10.10.1.26/24 sitting on vlan 100 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We are able to PXEboot clients on the same subnet (10.10.1.x/24) 
● &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Issue: We are trying to have clients on the Techbench network vlan 3340 be able to communicate pxe boot to our wds server (10.10.1.26/24) 
 
Current settings in DHCP TechBench4 network 
<a href="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426697/DHCP-options.png" target="_blank" title="DHCP-options.png (59 KB)"><img alt="DHCP-options.png" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2019/07_w29/800_1426697/DHCP-options.png" /></a> 
Advanced DHCP Options: 
<a href="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426698/advanced-DHCP.png" target="_blank" title="advanced-DHCP.png (22 KB)"><img alt="advanced-DHCP.png" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2019/07_w29/800_1426698/advanced-DHCP.png" /></a> 
Error on Client machine: 
<a href="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426700/client-error.png" target="_blank" title="client-error.png (479 KB)"><img alt="client-error.png" class="file-block lazyload" style="max-width: 617px;" data-src="https://filedb.experts-exchange.com/incoming/2019/07_w29/1426700/client-error.png" /></a> 
I will soon place wireshark traffic logs when i finish testing:
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advanced-DHCP.png

client-error.png

ip-scheme.png

ubnt--enviornemnt.png

DHCP-options.png

Hello,

Currently we are trying to utilize PXE boot across subsets in our environment. Please read below for more information

Current network environment:


●	The USG Router and Switches are assigned static IP addresses listed above
●	The USG router has networks/vlans created on them via the UBNT controller UI (v5.10.23.0)


●	The USG Router is responsible for DHCP for each network 
●	Our WDS/MDT server is 10.10.1.26/24 sitting on vlan 100
●	We are able to PXEboot clients on the same subnet (10.10.1.x/24) 
●	Issue: We are trying to have clients on the Techbench network vlan 3340 be able to communicate pxe boot to our wds server (10.10.1.26/24)

Current settings in DHCP TechBench4 network


Advanced DHCP Options: 


Error on Client machine: 


I will soon place wireshark traffic logs when i finish testing:

WDS/MDT PXE boot across different subnets using ubiquiti USG pro as DHCP server

PXE Boot

The Dynamic Host Configuration Protocol (DHCP) is an auto configuration protocol used on IP networks and an extension of the Bootstrap Protocol. DHCP allows for computers to be configured automatically to communicate with each other over an IP network without the need for manual setup by a network administrator. The implementation of DHCP relies on a DHCP server to hand out network configuration information to DHCP-capable clients that request an IP address (and other information required or useful in communicating with other devices on an IP network). In addition to an IP address, common configuration information served over DHCP includes a default gateway, subnet mask and DNS sever(s).

DHCP

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.