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Why is my router assigning the wrong address via DHCP
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I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via wireless, my wife's notebook, and our printer. However, whenever I attach my macbook to the router via an ethernet cable, the address it is given via DHCP is wrong.
My local network is set up as 192.168.1.*.
However, when my macbook connects with an ethernet cable, it is given the IP 192.168.29.*.
Currently, I have the macbook set up with a manual IP address, and all seems to be working fine.
Any ideas on what could be causing this?
networking router macbook dhcp
edited yesterday
Hennes
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
add a comment |
I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via wireless, my wife's notebook, and our printer. However, whenever I attach my macbook to the router via an ethernet cable, the address it is given via DHCP is wrong.
My local network is set up as 192.168.1.*.
However, when my macbook connects with an ethernet cable, it is given the IP 192.168.29.*.
Currently, I have the macbook set up with a manual IP address, and all seems to be working fine.
Any ideas on what could be causing this?
networking router macbook dhcp
edited yesterday
Hennes
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41
add a comment |
I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via wireless, my wife's notebook, and our printer. However, whenever I attach my macbook to the router via an ethernet cable, the address it is given via DHCP is wrong.
My local network is set up as 192.168.1.*.
However, when my macbook connects with an ethernet cable, it is given the IP 192.168.29.*.
Currently, I have the macbook set up with a manual IP address, and all seems to be working fine.
Any ideas on what could be causing this?
networking router macbook dhcp
edited yesterday
Hennes
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
I have a WRT54G router that is set up to serve out addresses via DHCP. It correctly serves up addresses to every other machine on the network, including another PC, my macbook when connected via wireless, my wife's notebook, and our printer. However, whenever I attach my macbook to the router via an ethernet cable, the address it is given via DHCP is wrong.
My local network is set up as 192.168.1.*.
However, when my macbook connects with an ethernet cable, it is given the IP 192.168.29.*.
Currently, I have the macbook set up with a manual IP address, and all seems to be working fine.
Any ideas on what could be causing this?
networking router macbook dhcp
networking router macbook dhcp
edited yesterday
Hennes
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
edited yesterday
Hennes
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
edited yesterday
Hennes
59.4k793144
edited yesterday
Hennes
59.4k793144
edited yesterday
Hennes
59.4k793144
59.4k793144
asked Jul 22 '09 at 1:03
BarryBarry
178126
asked Jul 22 '09 at 1:03
BarryBarry
178126
asked Jul 22 '09 at 1:03
BarryBarry
178126
178126
What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41
add a comment |
What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41
What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41
What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41
add a comment |
6 Answers
6
active
oldest
votes
Are you sure there isn't a second DHCP server on the network?
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
add a comment |
I had a similar issue. I had plugged in my Vonage adapter to my router using the "PC" connection instead of the "WAN" connection. The "PC" connection was acting as a DHCP server on the network and assigning IP requests to devices, even to devices that were connecting via the Router's wifi connection! How crazy is that?
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
add a comment |
Is your router setup for two different subnets?
You can 1) Check the subnet mask or 2) Just plug another device into the same physical port where you plugged your MacBook and see if it's also 192.168.29.*
answered Jul 22 '09 at 1:16
SteveSteve
706915
add a comment |
Do you have a "static dhcp" reservation setup for the MAC (ethernet) address of your MacBook?
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
add a comment |
On both of my ADSL Wireless routers (one US Robotics, one NetGear), there is a way to review which DHCP leases have been granted - a list of MAC addresses, the assigned IP address, and the life of the lease. My Netgear router calls this "Attached Devices".
When you review this with your LinkSys WRT54G, does your Macbook show up?
This will allow you to identify whether the router is supplying the odd IP address, or whether it's coming from elsewher.
answered Jul 22 '09 at 8:26
BevanBevan
9971922
add a comment |
The answer to the question is simple: user error. My linksys hiport was connected incorrectly and was trying to dole out IP addresses instead of just acting as another device on the network.
answered Jul 27 '09 at 14:40
BarryBarry
178126
add a comment |
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6 Answers
6
active
oldest
votes
6 Answers
6
active
oldest
votes
active
oldest
votes
active
oldest
votes
Are you sure there isn't a second DHCP server on the network?
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
add a comment |
Are you sure there isn't a second DHCP server on the network?
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
add a comment |
Are you sure there isn't a second DHCP server on the network?
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
Are you sure there isn't a second DHCP server on the network?
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
answered Jul 22 '09 at 3:40
Matthew SchinckelMatthew Schinckel
60449
60449
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
add a comment |
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
1
1
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
This is a good point - sometmes DHCP can be provided from unexpected directions. As a test, try powering off everything else except your router and your macbook, then force a DHCP renewal.
– Bevan
Jul 22 '09 at 8:28
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Good suggestion. I think there might be a way to see which DHCP server provided the address.
– Matthew Schinckel
Jul 24 '09 at 0:14
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
Turns out that my linksys hiport was plugged in backwards and was trying to dole out IP addresses instead of my router.
– Barry
Jul 27 '09 at 14:39
add a comment |
I had a similar issue. I had plugged in my Vonage adapter to my router using the "PC" connection instead of the "WAN" connection. The "PC" connection was acting as a DHCP server on the network and assigning IP requests to devices, even to devices that were connecting via the Router's wifi connection! How crazy is that?
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
add a comment |
I had a similar issue. I had plugged in my Vonage adapter to my router using the "PC" connection instead of the "WAN" connection. The "PC" connection was acting as a DHCP server on the network and assigning IP requests to devices, even to devices that were connecting via the Router's wifi connection! How crazy is that?
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
add a comment |
I had a similar issue. I had plugged in my Vonage adapter to my router using the "PC" connection instead of the "WAN" connection. The "PC" connection was acting as a DHCP server on the network and assigning IP requests to devices, even to devices that were connecting via the Router's wifi connection! How crazy is that?
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
I had a similar issue. I had plugged in my Vonage adapter to my router using the "PC" connection instead of the "WAN" connection. The "PC" connection was acting as a DHCP server on the network and assigning IP requests to devices, even to devices that were connecting via the Router's wifi connection! How crazy is that?
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
answered Oct 15 '11 at 2:39
Dan BailiffDan Bailiff
1213
1213
add a comment |
add a comment |
Is your router setup for two different subnets?
You can 1) Check the subnet mask or 2) Just plug another device into the same physical port where you plugged your MacBook and see if it's also 192.168.29.*
answered Jul 22 '09 at 1:16
SteveSteve
706915
add a comment |
Is your router setup for two different subnets?
You can 1) Check the subnet mask or 2) Just plug another device into the same physical port where you plugged your MacBook and see if it's also 192.168.29.*
answered Jul 22 '09 at 1:16
SteveSteve
706915
add a comment |
Is your router setup for two different subnets?
You can 1) Check the subnet mask or 2) Just plug another device into the same physical port where you plugged your MacBook and see if it's also 192.168.29.*
answered Jul 22 '09 at 1:16
SteveSteve
706915
Is your router setup for two different subnets?
You can 1) Check the subnet mask or 2) Just plug another device into the same physical port where you plugged your MacBook and see if it's also 192.168.29.*
answered Jul 22 '09 at 1:16
SteveSteve
706915
answered Jul 22 '09 at 1:16
SteveSteve
706915
answered Jul 22 '09 at 1:16
SteveSteve
706915
answered Jul 22 '09 at 1:16
SteveSteve
706915
706915
add a comment |
add a comment |
Do you have a "static dhcp" reservation setup for the MAC (ethernet) address of your MacBook?
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
add a comment |
Do you have a "static dhcp" reservation setup for the MAC (ethernet) address of your MacBook?
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
add a comment |
Do you have a "static dhcp" reservation setup for the MAC (ethernet) address of your MacBook?
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
Do you have a "static dhcp" reservation setup for the MAC (ethernet) address of your MacBook?
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
answered Jul 22 '09 at 2:22
pgspgs
3,0551925
3,0551925
add a comment |
add a comment |
On both of my ADSL Wireless routers (one US Robotics, one NetGear), there is a way to review which DHCP leases have been granted - a list of MAC addresses, the assigned IP address, and the life of the lease. My Netgear router calls this "Attached Devices".
When you review this with your LinkSys WRT54G, does your Macbook show up?
This will allow you to identify whether the router is supplying the odd IP address, or whether it's coming from elsewher.
answered Jul 22 '09 at 8:26
BevanBevan
9971922
add a comment |
On both of my ADSL Wireless routers (one US Robotics, one NetGear), there is a way to review which DHCP leases have been granted - a list of MAC addresses, the assigned IP address, and the life of the lease. My Netgear router calls this "Attached Devices".
When you review this with your LinkSys WRT54G, does your Macbook show up?
This will allow you to identify whether the router is supplying the odd IP address, or whether it's coming from elsewher.
answered Jul 22 '09 at 8:26
BevanBevan
9971922
add a comment |
On both of my ADSL Wireless routers (one US Robotics, one NetGear), there is a way to review which DHCP leases have been granted - a list of MAC addresses, the assigned IP address, and the life of the lease. My Netgear router calls this "Attached Devices".
When you review this with your LinkSys WRT54G, does your Macbook show up?
This will allow you to identify whether the router is supplying the odd IP address, or whether it's coming from elsewher.
answered Jul 22 '09 at 8:26
BevanBevan
9971922
On both of my ADSL Wireless routers (one US Robotics, one NetGear), there is a way to review which DHCP leases have been granted - a list of MAC addresses, the assigned IP address, and the life of the lease. My Netgear router calls this "Attached Devices".
When you review this with your LinkSys WRT54G, does your Macbook show up?
This will allow you to identify whether the router is supplying the odd IP address, or whether it's coming from elsewher.
answered Jul 22 '09 at 8:26
BevanBevan
9971922
answered Jul 22 '09 at 8:26
BevanBevan
9971922
answered Jul 22 '09 at 8:26
BevanBevan
9971922
answered Jul 22 '09 at 8:26
BevanBevan
9971922
9971922
add a comment |
add a comment |
The answer to the question is simple: user error. My linksys hiport was connected incorrectly and was trying to dole out IP addresses instead of just acting as another device on the network.
answered Jul 27 '09 at 14:40
BarryBarry
178126
add a comment |
The answer to the question is simple: user error. My linksys hiport was connected incorrectly and was trying to dole out IP addresses instead of just acting as another device on the network.
answered Jul 27 '09 at 14:40
BarryBarry
178126
add a comment |
The answer to the question is simple: user error. My linksys hiport was connected incorrectly and was trying to dole out IP addresses instead of just acting as another device on the network.
answered Jul 27 '09 at 14:40
BarryBarry
178126
The answer to the question is simple: user error. My linksys hiport was connected incorrectly and was trying to dole out IP addresses instead of just acting as another device on the network.
answered Jul 27 '09 at 14:40
BarryBarry
178126
answered Jul 27 '09 at 14:40
BarryBarry
178126
answered Jul 27 '09 at 14:40
BarryBarry
178126
answered Jul 27 '09 at 14:40
BarryBarry
178126
178126
add a comment |
add a comment |
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What address range does your Airport connection on the macbook get?
– Matthew Schinckel
Jul 22 '09 at 3:41