BleepingComputer.com: Linksys WRT310N & Outlook Anywhere

Hello everyone...

A friend is having problems connecting to Outlook Anywhere from his home network. Here’s the setup:

Exchange 2007 at the office

Outlook 2007 on the laptop

Linksys WRT310N behind a Comcast cable modem at home

When trying to connect remotely from behind the WRT310N, Outlook will repeatedly prompt for a username & password, but will never connect (“trying to connect”…then prompts again). If he bypasses the router & plugs directly into the Comcast modem, Outlook connects with no problems, so we’re fairly sure the problem is with the router’s settings. We’ve tried re-starting the modem & router, disabling the router’s firewall, new patch cables (problem occurs on both wifi & wired connections), and now we’re out of ideas.

Anything else we might try? Thanks in advance.

"Disabling the router's firewall" not sure what you mean there.

Are you using a VPN?

We disabled all of the router’s firewall functions:
SPI firewall protection
Block anonymous Internet requests
Filter multicast
Filter Internet NAT redirection
Filter IDENT (port 113)

A VPN connections doesn’t help either.

Outlook behaves fine in the office, and remotely when connected directly to his Comcast cable modem. All symptoms seem to point at his router, but what we’re seeing doesn’t seem to make any sense.

I’ve also checked the router and TCP/IP on his computer for hard-coded DNS servers & found none. DNS servers are acquired via DHCP.

Strange.