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Tutor

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9 Messages

Wed, Jan 3, 2018 11:27 PM

How to assign a different IP range to att router?

I currently have att fiber with an att WiFi router.  I am using one of the ports of my att router to send the internet over to my previous Linksys router.  I’m assuming dhcp is controlled by the att router.  I’ve e got devices, both WiFi and wired, hanging of the Linksys.  

 

Before I had att, all of my devices had internal IP address as 192.168.101-199. DHCP was controlled by my Linksys previously.  I had a few devices where I assigned a fixed IP address to inside the Linksys using the devices MAC address.  These were printers and NAS drives.  I turned off dhcp in those devices too and in their setup screens assigned them a specif ip 192.168.1.1## address.  

 

Now ot that I have tthe att router, all of my devices on my Linksys are using a different internal ip range.  Most all work fine.  But the ones where I turned off dhcp and use a fixed ip do not work.  Their ip is not in the range that att router assigned.  And at this point I cannot do anything to even get into their setup screens to change their ip or change them to dhcp.  

 

I need a solution to fix to fix this issue.  I think the easiest thing would be for me to change the device ip allocation range of ips in the att router and set a fixed ip to my devices that “need” one.  But I’m open to other suggestions.  I’m not much of a networking expert.

 

can I do what I’m suggesting?  If so, how do I go about making the changes to the att router?

 

is there a better way to get these devices back online to my network again?

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Community Support

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2.3K Messages

2 years ago

Hi @Bigdigital,

 

You can assign a different DHCP range on your U-verse gateway by logging into the gateway at http://192.168.1.254. After that, depending on your gateway, you can either go to Settings > LAN >DHCP or Home Network > Subnets & DHCP. After that, you can change it to something, such as 192.168.2.254 and change the start and end address to reflect. I am not sure why there is an issue with your connection though. You may run into IP conflicts, but as long as the devices are connected behind the Linksys, it should work and retain the same IPs. I am thinking the Linksys may have been reset, and you will have to reconfigure all your devices. Hopefully, it will be simple, since you have done it in the past. Double check your Static IP settings on your device to make sure it is still set.

 

David, AT&T Community Specialist

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Tutor

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9 Messages

2 years ago

I've logged into the Linksys and I can see that it has not been reset.  I'll try to see if I can do as you suggested.  Thank you.

Tutor

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9 Messages

2 years ago

Where is the setting to release and renew DHCP after I change the range?