Renew (repair) IP address, won't

Comodo Internet Security - CIS Firewall Help - CIS
#1

For some reason, (ver. 3.8.6xxxx) it will not allow my computer to renew it’s IP address to the router.
It says (firewall event log) it is blocking UDP from SVCHOST on IP address (varies) to IP address 255.255.255.255 Source Port 68, destination port 67. If I disable the firewall, it runs just fine. Does not seem to work on either Safe or Training mode.

I set a rule on SVCHOST to allow Any IP address to ANY IP address, with those source and destination ports, for UDP, but it still doesn’t work. No other messages can be seen in the firewall events log.

What am I doing wrong?

NOTE - My old DLINK (11g) router crashed and burned, and I replaced it with a NETLINK router (N+). Since then the IP renew has required this firewall disable. I do not know if that has anything to do with it, but thought I would mention it just in case.

#2

Hello FoFo, This may help https://forums.comodo.com/firewall_faq/no_network_connection_after_using_stealth_ports_wizard_dhcp_broken-t41463.0.html;msg300650#msg300650

#3

Thanks.
It does seem to enabled.

Windows IP Configuration

        Host Name . . . . . . . . . . . . : FoFa
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
        Physical Address. . . . . . . . . : 00-15-5A-0E-7E-4D
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.1.2
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.1
        DHCP Server . . . . . . . . . . . : 192.168.1.1
        DNS Servers . . . . . . . . . . . : 192.168.1.1
        Lease Obtained. . . . . . . . . . : Friday, September 25, 2009 8:59:34 P
M
        Lease Expires . . . . . . . . . . : Saturday, September 26, 2009 8:59:34
 PM

Ethernet adapter Network Connect Adapter:

        Media State . . . . . . . . . . . : Media disconnected
        Description . . . . . . . . . . . : Juniper Network Connect Virtual Adap
ter
        Physical Address. . . . . . . . . : 00-FF-A0-06-38-8A
#4

Can you show me a screenshot of your Global Rules? They can be found under Firewall → Advanced → Network Security Policy.

#5

Check your properties setting of your network card driver to ensure that your speed/duplex setting is (full) autonegotiation. A line speed mismatch btw the router and the nic will cause DHCP to fail. I say this because your problems started after you replaced the router.

Also check your NetBIOS settings under the WINS tab in TCP/IP properties assuming your are running XP. If it is set to “default” change it to “NetBIOS over TCP/IP”. Routers don’t always recognize what OS they are negotiating with.