Netgear Router DG834

[johncharnock]

Hi

I have a range of 5 IP adresses from BT and a netgear DG834 set up in routed IP mode i:e  I have a rule on the router that forwards on of the IP range to a firewal which NAT's to my network devices which in this case is a server which I access with Terminal Services. This has been working fine for teh past twelve montsh or so. Last week I lost internet connectivity outbound and then inbound connectivity. At first I thought it was a DNS issue, however I could resolve names on the DNS diagnostics in the modem. I stripped everything back, eliminated the firewall and just connected a PC to the router and gave it an IP from my public range. No internet access at all - very frustating. I know my PC was set up Ok as I could manage the router form the PC. I by chance ticked the box in router to enable NAT and I got my Internet connection back again. Put everything back as it was including firewall and got outbound but no inbound. I ticked the disable NAT again on the router and everything worked - in fact it is set up excatly the same as it was for the past twelve months.  It didn't last long however , no inbound again. I rang Netgear and a guy with bad english tried to explain double NAt and said I should call my ISP but didn't say what I should call them about. Any ideas !        

[MalcolmW]

Hi johncharnock, I can see no reason to contact your ISP other than if you are having connection problems or to test your connection to see if there was any reason for losing your connection. Since you can get outbound the problem appears to be with your own setup and it would not be necessary on this occasion.

With regards to your inbound issue have you re added a rule to your firewall so that the inbound traffic is forwarded to your firewall?

If you are still having problems please post here and we will do our best to resolve your problem.

Regards

Mal

[a-hill]

John, can you confirm if you're specifying the gateway of your multiple static range on the WAN port of your Netgear or is that left to obtain automatically from the ISP? The latter should be the preferred option.