@westy_988 If you have troubles to connect your new RE to your router try this post suggestions. The WPS (Pair) button on Telstra routers and modems allows devices to connect to Wi-Fi without a...

@kerri-r If you have troubles to connect your new RE to your router try this post suggestions.

@Karisy I would reset the REs to their factry defaults and use the WPS method for configuring - details. If no improvement try this troubleshooting guide for your particular case. If that doesn't...

@ppt3 I see that you're using a regional FW release (DE). In this particular case it's best to contact your local support for advise.

@Abderr77 According to the support portal there's an intermediate FW version that you have to go through: If your target is TD-W8961N(EU)_V5_230928 try downgrading to the intermediate version first...

@KarloVranjes It appears that there's a newer FW release for your modem router - Archer VR2100v(EU)_V1_1.16.0 Build 260124 - here. Have you considered updating the VR2100v FW and test if that...