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james_xs
Beginner
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Message 1 of 12

2nd Router

Hi I have just changed to Bt infinity from Sky. I had another router connected to the sky router and I had fab coverage. The Bt one my 2nd router has no Internet. It transmits WIFI name and strenght but just cannot connect.  Have looked and is it something to do with the Ip address? the 2nd one is (Cisco) currently set to dymamic. Please any ideas as my lodger is kicking off. lol

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Distinguished Sage
Distinguished Sage
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Message 2 of 12

Re: 2nd Router

Slightly confused as to what you had connected to what and what you now have connected to what and how they are connected. Presumably via Ethernet, but are they connected LAN-LAN or LAN-WAN.

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james_xs
Beginner
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Message 3 of 12

Re: 2nd Router

Sorry. BT Infinity Home hub, This is connected to a Cisco router in another building. They are connected by Cat 6 cable.

 

The telephone line , ADSL is into the BT hub. I have PC connected to this and thats ok. I have from the other lan port to the cisco wireless router.

With the sky Router it just worked. Now I have the BT home hub instead the other router does not get internet from the home hub.  

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Distinguished Sage
Distinguished Sage
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Message 4 of 12

Re: 2nd Router

You need to give the Cisco router an IP address in the same subnet as the Home Hub. Give it an address of 192.168.1.253

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Distinguished Guru
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Message 5 of 12

Re: 2nd Router

  • is that not the address of the usb port?
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Distinguished Sage
Distinguished Sage
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Message 6 of 12

Re: 2nd Router

How can a USB port have an IP address?

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TimCurtis
Recognised Expert
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Message 7 of 12

Re: 2nd Router

I think some issue like this are caused by the fact that different ISP supplied routers have different IP addresses. Like Sky's might be 192.168.1.1 & BT's is 192.168.1.254.

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Distinguished Sage
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Message 8 of 12

Re: 2nd Router


@TimCurtis wrote:

I think some issue like this are caused by the fact that different ISP supplied routers have different IP addresses. Like Sky's might be 192.168.1.1 & BT's is 192.168.1.254.


Actually that's a bad example. Problems occur when people try to use 2 routers that have the same address or are in different subnets, e.g one in 192.168.1.xx and the other in 192.168.0.xx.

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TimCurtis
Recognised Expert
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Message 9 of 12

Re: 2nd Router


@licquorice wrote:

@TimCurtis wrote:

I think some issue like this are caused by the fact that different ISP supplied routers have different IP addresses. Like Sky's might be 192.168.1.1 & BT's is 192.168.1.254.


Actually that's a bad example. Problems occur when people try to use 2 routers that have the same address or are in different subnets, e.g one in 192.168.1.xx and the other in 192.168.0.xx.


Not exactly a bad example, just an example where under 1 setup the second router's default gateway might be set to 192.168.1.1 and on another 192.168.1.254.

 

Your example is also totally valid.

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Distinguished Sage
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Message 10 of 12

Re: 2nd Router


@TimCurtis wrote:

@licquorice wrote:

@TimCurtis wrote:

I think some issue like this are caused by the fact that different ISP supplied routers have different IP addresses. Like Sky's might be 192.168.1.1 & BT's is 192.168.1.254.


Actually that's a bad example. Problems occur when people try to use 2 routers that have the same address or are in different subnets, e.g one in 192.168.1.xx and the other in 192.168.0.xx.


Not exactly a bad example, just an example where under 1 setup the second router's default gateway might be set to 192.168.1.1 and on another 192.168.1.254.

 

Your example is also totally valid.


But if the 2 routers are connected LAN-LAN, it won't matter what the default gateway is on the second router (and probably won't have a setting to enter one anyway as it will default to its own IP address) as the connected device (PC) will be obtaining its IP address and default gateway information from the first router via DHCP. The second router is just an Ethernet switch really. At least that's my understanding. Smiley Wink

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