Windows 10: Error 0x2741: can't renew address on network DHCP server

My computer is sporadically hanging. The screen freezes, the audio becomes random noise, and no keyboard or mouse input is recognized. I have to wait several seconds, and then everything resumes as normal. This is not a frequent problem, but occurs often enough to be really annoying.Event Viewer shows thousands of instances of Event ID 1003 DHCPv6-Client occurring during the malfunction. The message says that the computer could not renew the network address from the DHCP server for the motherboard's 1Gb Ethernet port I looked up the network adapter address via ipconfig. The error code is 0

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DHCP renewal of IP address with ISP denied

Thanks to the respondents.

As the router is acting as DHCP server, I need to check with my ISP and to see if they suggest static IP addresses as an alternative to the current dynamic renewal that occurs every so often.

As for the switch, this must be logical somewhere on the network because there is no obvious hardware for it.

I will post more details here as and when.

 

DHCP renewal of IP address with ISP denied

Hello

I wonder if anyone can advise concerning a series of messages appearing in the logs of my two networked computers?

Examples of the messages:

• ON ALPHA: The IP address lease 192.168.0.3 for the Network Card with network address 0x0024E8F1F44F has been denied by the DHCP server 192.168.0.1 (The DHCP Server sent a DHCPNACK message).
• On BETA: The IP address lease 192.168.0.2 for the Network Card with network address 0x7071BCA36DBF has been denied by the DHCP server 192.168.0.1 (The DHCP Server sent a DHCPNACK message).

The advent of either appears to kill my internet connection requiring a router restart. I should add that sometimes both PCs are on, but often only one is. In the latter case, the issue still occurs on the active PC, normally BETA because it is the more powerful of the two.

To describe this network, ALPHA is a Windows 7 32bit laptop, and BETA is a 64bit Windows 10 desktop. Both PCs are connected to the internet via a Netgear DC834GV3 router connected to my ISP.

ALPHA has LAN network address 192.168.0.3, and BETA is 192.168.0.2. The router is 192.168.0.1. A simple network map is displayed below:






Both PCs are getting on a bit but are still fully working. The PCs and router are powered off usually and the cables disconnected from the mains, but the messages still occur with the router left on but the PCs switched off.

Thanks

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Side effects of releasing/renewing IP addresses?

There is a fairly well know security package that is causing some users problems on Win 10 AU - browser connections get blocked. (Other TCP/IP connectivity is unaffected - just browsers.) A user of the product found that releasing and renewing DHCP-provided IP address - i.e., doing "ipconfig /release" followed by ipconfig /renew"" temporarily fixes the problem. Can someone explain to me what doing a release/renew does to Windows such that a program - even a program with deeply embedded hooks - would even know this has happened.

Obviously the computer will get a new IP address from DHCP. (Which, for many DHCP servers, will likely be the same as the old one.) If it gets a new address, will this make Windows switch it's network profile from "Private" to "Guest or Public"? (I know the security package will see that.)

And a few more questions relating to /release and /renew but unrelated to the problem:
I see there are IPv6 versions of /release and /renew. Does that mean that /release and /renew apply to only IPv4 addresses, or do those commands apply to both IPv4 and IPv6? If only IPv4, is there a way to release and renew all addresses? The DHCP server supplied a list of DNS servers as part of the DHCP handshake. Does the release and renew process also renew the list of DNS servers? If so, is there the same division of IPv4 and IPv6?