Spectranet - ethernet for your Spectrum - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Phil__G · 25th Jun 2023, 12:09 pm

Quote:

Originally Posted by Gulliver

It shows up in the list of connected devices when I go into the router's advanced settings. It's obtaining an IP address successfully but that's it. With the hub 2 it worked without any settings being fiddled with.

So, again, can you ping the Spectrum from any other device that is connected to the router?

arjoll · 25th Jun 2023, 9:00 pm

Does the new router have the same IP address as the old one? If so, it may be an ARP issue - possible the Spectrum's interface has cached the MAC address of the old router. Not sure how this is sorted on it, but I'd try changing the address of the router in this case. Unless you have devices with static IP addresses it should be painless - just restart all devices so they get a new address via DHCP.

Also check the subnet mask. Not normally a problem, but if the router uses an address in the old "class A" private network (10.x.x.x) it's likely using CDIR and a /24 network (mask 255.255.255.0), while some devices default to /8 (mask 255.0.0.0) in this range.

Gulliver · 11th Sep 2023, 9:11 pm

Quote:

Originally Posted by Phil__G

So, again, can you ping the Spectrum from any other device that is connected to the router?

I just tried, without success, to ping the IP address my Spectranet reports.

Gulliver · 11th Sep 2023, 9:14 pm

Quote:

Originally Posted by arjoll

Does the new router have the same IP address as the old one? If so, it may be an ARP issue - possible the Spectrum's interface has cached the MAC address of the old router. Not sure how this is sorted on it, but I'd try changing the address of the router in this case. Unless you have devices with static IP addresses it should be painless - just restart all devices so they get a new address via DHCP.

Also check the subnet mask. Not normally a problem, but if the router uses an address in the old "class A" private network (10.x.x.x) it's likely using CDIR and a /24 network (mask 255.255.255.0), while some devices default to /8 (mask 255.0.0.0) in this range.

Hmm....I don't know how to find out what the old router's IP address was....as it seems to have ceased functioning as soon as I installed the new one. I do still have it, and have attempted re-installing it several times.

The subnet masking info mostly goes above my head but the IP address of the router isn't 10.x.x.x

Mark1960 · 11th Sep 2023, 11:08 pm

I would expect your router to be 192.168.1.1 or 192.168.0.1 on your LAN, local network.

10.x.x.x looks more like the ip address your network provider would assign to your router on the WAN.

You can probably see the configuration of the router a computer or tablet on your network by entering 192.168.1.1 or 192.168.0.1 in the address of a browser, it might ask for a password, but that should be on a label on the router unless you changed it.

Clydeuk · 12th Sep 2023, 3:09 pm

You can configure the Hub to act as just a modem (Virgin call it modem mode) which means you can then use your own router, which may be easier to configure particularly if the Hub 3 is in some way locked down. Instructions here: https://www.virginmedia.com/content/..._t4_s8_a1.html

Obviously not ideal and requires an extra piece of equipment which you may or may not have. There's probably some setting you can change on the Hub if you knew what the exact problem was. I have issues with a wireless printer occasionally refusing to connect that was fine before they changed me over.

bigfathairyvika · 13th Sep 2023, 12:18 am

Hi,

Afaik, the spectranet is a hardwired interface , so router passwords are not involved .
It should work fine with the hub 3.
So, from what's been said , the problem appears to be at the spectranet interface end.
But,
To debug, I would need the following:-
IP address,subnet mask,dns server address and router address the spectranet thinks it has.

Note that it is possible for the dhcp service to handout settings and the client (spectranet device) to ignore them. Usually a reset to factory settings of the spectranet device whilst not connected to the hub and also clear the allocation from the hub before reconnection would solve the problem.

On the note of UDP and TCP, these could only be affected for external incoming packets with no internal outgoing request.
All outgoing packets should be fine.

Mark

25th Jun 2023, 9:00 pm	#22
arjoll Dekatron Join Date: May 2006 Location: Invercargill, New Zealand Posts: 3,376	Re: Spectranet - ethernet for your Spectrum Does the new router have the same IP address as the old one? If so, it may be an ARP issue - possible the Spectrum's interface has cached the MAC address of the old router. Not sure how this is sorted on it, but I'd try changing the address of the router in this case. Unless you have devices with static IP addresses it should be painless - just restart all devices so they get a new address via DHCP. Also check the subnet mask. Not normally a problem, but if the router uses an address in the old "class A" private network (10.x.x.x) it's likely using CDIR and a /24 network (mask 255.255.255.0), while some devices default to /8 (mask 255.0.0.0) in this range.

11th Sep 2023, 11:08 pm	#25
Mark1960 Octode Join Date: Mar 2020 Location: Kitchener, Ontario, Canada Posts: 1,196	Re: Spectranet - ethernet for your Spectrum I would expect your router to be 192.168.1.1 or 192.168.0.1 on your LAN, local network. 10.x.x.x looks more like the ip address your network provider would assign to your router on the WAN. You can probably see the configuration of the router a computer or tablet on your network by entering 192.168.1.1 or 192.168.0.1 in the address of a browser, it might ask for a password, but that should be on a label on the router unless you changed it.

12th Sep 2023, 3:09 pm	#26
Clydeuk Hexode Join Date: Mar 2012 Location: Liverpool, Merseyside, UK. Posts: 452	Re: Spectranet - ethernet for your Spectrum You can configure the Hub to act as just a modem (Virgin call it modem mode) which means you can then use your own router, which may be easier to configure particularly if the Hub 3 is in some way locked down. Instructions here: https://www.virginmedia.com/content/..._t4_s8_a1.html Obviously not ideal and requires an extra piece of equipment which you may or may not have. There's probably some setting you can change on the Hub if you knew what the exact problem was. I have issues with a wireless printer occasionally refusing to connect that was fine before they changed me over.

13th Sep 2023, 12:18 am	#27
bigfathairyvika Hexode Join Date: Nov 2009 Location: Cambridge, Cambridgeshire, UK. Posts: 370	Re: Spectranet - ethernet for your Spectrum Hi, Afaik, the spectranet is a hardwired interface , so router passwords are not involved . It should work fine with the hub 3. So, from what's been said , the problem appears to be at the spectranet interface end. But, To debug, I would need the following:- IP address,subnet mask,dns server address and router address the spectranet thinks it has. Note that it is possible for the dhcp service to handout settings and the client (spectranet device) to ignore them. Usually a reset to factory settings of the spectranet device whilst not connected to the hub and also clear the allocation from the hub before reconnection would solve the problem. On the note of UDP and TCP, these could only be affected for external incoming packets with no internal outgoing request. All outgoing packets should be fine. Mark