Lightning to RJ45 Ethernet adaptor not working

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Lightning to RJ45 Ethernet adaptor not working

Hi everyone, I recently bought a Lightning to RJ45 Ethernet adaptor for my iPad and I can't make it to work.

I see the network activity on my router lights and it shows up the the iOS Settings as Ethernet and it gets some config in the DHCP section but I can't get it to work, no connection to the internet, nothing.

I'm including a screenshot of the iPad and also my network configuration on my Mac.

Mac:

IP Adress: 192.168.1.68

Subnet Mask: 255.255.255.0

Router: 192.168.1.254

DNS Server: 1.1.1.1, 1.0.0.1

IPv6: 2001:8a0:f4b6:7500:c73:c447:a0d:d980

One thing that does work is Handoff (with wifi and bluetooth off in both Mac and iPad), when I connect the cable it instantly gets the tabs opened in my Mac and shows the Safari icon on the iPad dock with the desktop icon on top of it. But when I try to visit the website it gives me a no internet message.

So some information is getting trough…

iOS 12.1

macOS 10.14.2

iPad:

First this:

Then this:

And here is my router config:

One thing I see that doesn't make much sense is the IP on the iPad… I don't know where it's getting it from…

Any ideas?

Thanks!

iPad Pro 11-inch Wi-Fi, Cellular

Posted on Jan 13, 2019 4:37 AM

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Answer 1

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LotusPilot

Community+ 2025

Level 10

301,532 points

Jan 13, 2019 5:32 AM in response to helderluis

For some reason your iPad is not receiving an IP Address information via DHCP - and is instead “self-assigning” a Link Local Address to itself. Link Local addresses are non-routable, so you’ll not be able to get an internet connection as it doesn’t have a default route (i.e., Router address). Link Local addresess are only assigned when something is wrong - or when you attempt to join a network that doesn’t have a DHCP server.

You’ll need to try to work out why your DHCP server (potentially your home router) is not responding to any DHCP requests from your iPad - this being a task likely beyond the scope of a discussion forum such as this (you may need to do some packet sniffing with a protocol analyser program on a PC or your Mac - although there are some Network Analyser Apps for iPad if you’re sufficiently knowledgable about IP networks and troubleshooting).

Alternatively, you could manually set a static IP Address (with appropriate subnet mask) DNS and Router addresses on your iPad. To do this, you’ll need to understand what address range is acceptable for your static-IP.

Your Router screenshot implies that your automatically assigned (via DHCP) address range is 192.168.1.64 through 192.168.1.163 - whilst your Router IP address (and hence default gateway address) is 192.168.1.254. This potentially leaves you with a choice of static IP addresses of 192.168.1.1 through 192.168.1.63 - assuming that none of them are already in-use on your home network.

So, as a suggestion for you to try - manually set your iPad addresses as follows:

• Configure IP > Manual

• IP Address > 192.168.1.10

• Subnet Mask > 255.255.255.0

• Router > 192.168.1.254

• Configure DNS > Manual

• DNS Server > 192.168.1.254

This configuration should allow your iPad to communicate provided that the static IP chosen is not duplicated on your network. If your router is not handling DNS address resolution, then you could change the iPad DNS address to a public DNS server - such as:

• 9.9.9.9 (Quad9)*

• 8.8.8.8 and 8.8.4.4 (Google)

• 208.67.222.222 and 208.67.220.220 (OpenDNS)*

*recommended

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Answer 2

helderluis Author

Level 1

9 points

Jan 13, 2019 10:10 AM in response to LotusPilot

Thank you for your reply. Tried everything and still no luck. I even restarted my router, disabled firewall in the router, nothing : (

I've read that the Handoff thing works because it communicates directly without going to the router, so it's definitely communicating, it's just not getting an IP from the router.

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Lightning to RJ45 Ethernet adaptor not working

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