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Public IP
freeness
Newbie

My public IP changed recently and now I'm having some problems.  An FTP server I log into regularly is rejecting me.  I can log on from the FiOS connection at my office, but not from home.  It seems that Megapath (the FTP server's ISP) is blocking my IP from port 21 because is has my IP blacklisted.  How can I force my public IP to change?

Andy 

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Re: Public IP
jmw1950
Specialist

It is easier to contact the FTP server own and ask them to unblock your IP address.

If you want to change your IP address, the only way that works for sure it to change the MAC address on your connection. That is either another router, or another Ethernet card on your PC.

Some say that if you turn off your Modem/router for 24+ hours it works. The answer is it can happen if you do so, but rarely actually does. What you are doing is allowing the lease on your IP address to expire without renewing it so it goes back into the pool (and hopefully someone else gets it). In theory you might get a new IP address any time the lease expires. The reality is the only reliable way I have found was to change the MAC address on my connection.

Message Edited by jmw1950 on 06-12-2009 06:18 PM
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Re: Public IP
freeness
Newbie
I tried that by plugging the net connection right into my PC, and releasing / renewing the lease, but it didn't change the IP.  It seems like the IP is leased via the ONT.  I called tech support and after an hour they couldn't get my IP changed either.  The problem seems to be that the FTP server is blocked by their ISP, Megapath, not the FTP server, so they can't fix the issue.  I don't even know for certain it's blocked, it could be some weird DNS or routing issue, but I can log into the FTP server from another FiOS connection.
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Re: Public IP
BrianMcD
Specialist
Perhaps they could configure their FTP Server to use a Port Other than 25.
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Re: Public IP
nycrdc
Contributor
I would contact Verizon and ask them to release your DHCP and assign you a new IP address. I've done this several times for my customers and it only takes a couple of minutes.
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