RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)

RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)

RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)
RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)
2026-01-30 07:12:29 - last edited 2026-02-10 07:33:11
Model: RE450  
Hardware Version: V4
Firmware Version: Firmware Version: 1.0.20 Build 230213 Rel.55420n (6585)

Had been using the extender with no issues on the older Gen 1 modem. Updated to Gen 2 with a new plan and now I can not get the extender to connect to the internet.

 

Able to get the wifi connected no issues- but nothing I do gets the internet to work with it.

 

I have tried everything on these threads I could find - any help with be greatly appreciated

 

 

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#1
1 Accepted Solution
Re:RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)-Solution
2026-02-09 10:58:19 - last edited 2026-02-10 07:33:11

Hello @Macmx5 ,

Thanks for getting back to us.

 

What if you connect the RE450 back to the previous router? Can it be connected again?

For more suggestions, you can refer to What should I do if I fail to configure TP-Link Range Extender?

 

 

 

Welcome to Our Community! Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click Or ☆Recommended Solution if the post/answer helps.
Recommended Solution
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#5
4 Reply
Re:RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)
2026-02-04 10:06:48

Hello  @Macmx5 ,

If you changed to a new router, you need to reset the extender and configure it again.

With the power on, Use a pin to press and hold the Reset button until all the LEDs turn on momentarily to reset the extender.

 

 

 

Welcome to Our Community! Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click Or ☆Recommended Solution if the post/answer helps.
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#2
Re:RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)
2026-02-07 02:35:17

Macmx5 wrote

Had been using the extender with no issues on the older Gen 1 modem. Updated to Gen 2 with a new plan and now I can not get the extender to connect to the internet.

 

Able to get the wifi connected no issues- but nothing I do gets the internet to work with it.

 

I have tried everything on these threads I could find - any help with be greatly appreciated

 

 

  @Macmx5 

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0
#3
Re:RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)
2026-02-07 20:36:56

  @Joseph-TP Have tried this (multiple times) and have been workong with Tp_link support - still nt having any luck :-(

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#4
Re:RE450 AC1750 won't connect to the internet with Optus Ultra WiFi Modem (Gen 2)-Solution
2026-02-09 10:58:19 - last edited 2026-02-10 07:33:11

Hello @Macmx5 ,

Thanks for getting back to us.

 

What if you connect the RE450 back to the previous router? Can it be connected again?

For more suggestions, you can refer to What should I do if I fail to configure TP-Link Range Extender?

 

 

 

Welcome to Our Community! Get the latest posts: △New Firmware for Archer GE550/GE650 V1 Introduces AI-QoS, EasyMesh IoT Expansion, and More! △New Firmware Releases for Archer BE805 V1/BE450 V1 to Support VPN Merge, New ECO Mode, and More! More posts, please see: △ Get the Ongoing Pre-release Firmware for Wi-Fi Routers Here— Subscribe for Updates! Urgent problems with your Wi-Fi Router, Range Extender, or DSL Modem? Please reach out via private Messages or @Joesph-TP in your new thread directly. Click Or ☆Recommended Solution if the post/answer helps.
Recommended Solution
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#5