 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Windows Forum / Windows XP / Networking and Web / January 2006xp WON'T auto renew IP address after lease
======================================= xp WON'T auto renew IP address after lease ........HELP........ ======================================= ISP = comcast , CABLE MODEM = linksys , OS = xp pro ALL LAST YEAR, my ISP was changing my IP lease date/time every X-hours, if I was conncected WHILE my lease expired, my address remained the SAME, and only the lease date/time was extended another x-hours. This worked fine. BUT THIS YEAR, my isp ( every X-hours ) is changing the IP address ALONG with the date/time change ( kicking me off-line ). XP should AUTO renew the new IP address for me, but WHEN XP tries, it defaults to 169.x.y.z ( wrong IP address ) stopping access to the internet. TO COUNTER THIS, I reboot the system just AFTER the lease expires to let XP find the new IP address so I can re-connect to internet, UNTIL this new lease expires again. X-hours is between 2-100 hours ( depending on maintenance ). Cable modem tested and is working. MUST BE XP PROBLEM. What happens if before the lease expires you run: ipconfig /release ipconfig /renew Doug Sherman MCSE, MCSA, MCP+I, MVP > ======================================= > xp WON'T auto renew IP address after lease ........HELP........ [quoted text clipped - 19 lines] > X-hours is between 2-100 hours ( depending on maintenance ). > Cable modem tested and is working. MUST BE XP PROBLEM. HI DOUG, both /switches are working IPconfig /release ( lets go of current address ) IPconfig /renew ( same ip settings as before ) BUT, comcast will change IP in the future, IF I'm still connected, shouldn't XP capture the NEW ip address, so I don't see a disconnect problem ? Yes, XP should get the new address automatically. However, if your ISP is playing games with variable lease durations and cycling IPs out of the available range; then when a DHCP client already has an IP and attempts to renew it, it is likely to receive a NACK response. This results in a longer broadcast conversation between the client and the server and increases the chance of collisions, lost/dropped packets, etc. If you periodically release and renew, you 'should' be able to avoid lease expiration. This is more a case of your ISP maximizing the chances of lease negotiation failure than a 'Windows' problem. The DHCP process is defined and governed by various RFCs; it is not controlled by Microsoft or Windows. Doug Sherman MCSE, MCSA, MCP+I, MVP > HI DOUG, > [quoted text clipped - 6 lines] > shouldn't XP capture the NEW ip address, > so I don't see a disconnect problem ? |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.