120M : VM SuperHub #2 Problems

[Mel Jones]

Hello,

I have a problem which is really beginning to p*** me *** now and it's not the first time this has happened and I am at the point where after 15 years as a customer I have had enough.

This is my second VMSH#2 and I had the same problem with the other Cable Modem/Router. Whenever I put the cable modem into Cable Modem Mode it can work fine for weeks or even months and then all of the sudden it just stops talking to my Linksys 1900ac Cable/Router and Linksys 8-prt Switch.

What happens is my external router goes Internet LED goes from white to orange which means that it has lost connectivity. Although the cable modem is fine and my PC and Surface Pro 3 is showing as connected. I reboot the CM and then the Router and its back on again. Then it goes again...?

And here is the bizarre part. If I set the Cable/Router to default Cable modem and Router it's fine. Set it back to Cable Modem Mode it drops the connection. But the cable modem is fine according to the LED's it is fine. If I reboot the cable modem and look at the logs I can see there is error messages cannot establish a connection.

Initially I thought that there was an outage because Newport West has had a few outages this year

Therefore I am wondering if I have saturated my connection and the Cable Modem/Router cannot cope with the demand. But when it is in default mode it is fine. Cable Modem mode it drops the connection.

Any ideas would be gratefully appreciated because I don't know what is causing the problem.

[arcimedes]

What I conclude from your description is that it appears to point at your router as being the problem. However one other thing to try is put shub into modem mode and connect the PC to it and see what happens.

[Mel Jones]

Originally Posted by arcimedes

What I conclude from your description is that it appears to point at your router as being the problem. However one other thing to try is put shub into modem mode and connect the PC to it and see what happens.

It works fine... and I agree but? When it is in cable modem mode that is where the problems start. I will say one thing. This is the last Linksys Cable/Router that I will ever buy because I have looked through some forums this morning and there are a lot of people experiencing problems with disconnections and stopped communicating with the cable modem. I had a Netgear Cable/Router which had an identical problem as with the Linksys 1900ac. If it was a cheap router I wouldn't mind. but this is an expensive router.

Linksys Tec Support is worse than VM and believe me that is saying something.

[Update]
If I put the cable modem/router into Cable Modem Mode it disconnects, it stops talking with the router and it keeps dropping the connection. If I put the cable modem/router into default mode it works fine and not once has it dropped the connection from the point where I posted this topic. My external router or the cable modem/router does not like to communicate in cable modem mode. Why...? I don't know. But if I turn off Cable Modem Mode it's fine. turn it back on I get disconnections galore. very bizarre indeed.

[qasdfdsaq]

You posted this topic 30 minutes ago. You said the problem only occurs every few weeks or months.

Hardly conclusive...

[arcimedes]

I didn't want to repeat myself but have you connected a PC to the shub when its in modem mode?

[DJSADERS]

do remember in modem mode only 1 ethernet port on the superhub works

[General Maximus]

Originally Posted by Mel Jones

My external router or the cable modem/router does not like to communicate in cable modem mode. Why...? I don't know. But if I turn off Cable Modem Mode it's fine. turn it back on I get disconnections galore. very bizarre indeed.

For starters I would want to make sure my proper router was receiving the correct ip address because it is either going to have a wan address from VM or an internal ip (192.168.0.2) from the shub. Until you get that sorted out then you are bound to have connectivity issues.

[pip08456]

Why would your PC and Surface Pro 3 not be connected to the router?

[Sephiroth]

F in modem mode they don't connect, then it looks like incorrect router settings or the cables not in the right ports.

SH cable in lowest Ethernet port by the coax; router cable in WAN port.