E3200 an Microsoft Lync

[geertvnieuw]

Hi, I have this new Linksys 3200 set up and all is working fine. Except for the Microsoft Lync 2010 client. Lync is unable to connect when I go over the 3200! Already tried the port forwarding stuff bu without result.

So connected my old belkin router again and everything working correctly, now actions where needed to make it wok with the Belkin. Anybody has the same problem and tips to a solution?

Thank you

[lordstag]

Assuming Win7 or Vista, it is probably a firewall problem. When connecting a new network, router, it sometimes defaults it to a Public network. Which uses a different firewall profile. So open up Network and Sharing and see if it is listed as a Home, Work, or Public network.

[geertvnieuw]

Hi, thanks for your reply.

It is Windows7.

My network was set up as work network. Changed to home network but problem stays the same ....

[lordstag]

Try disabling the firewall on your computer just to verify that it still does not work. There shouldn't be any settings needed to be changed on the router to allow this. Lync works fine on my e4200 with no changes made.

[geertvnieuw]

It can't be my computer. When i switch to my old router Lync works fine without any changes on the pc.

Tried to reset the router to factory settings and reconfiguring but no luck for me ...

Found a setting in Administration - Management called SIP ALG that has something to do with voip, this setting was disabled and i enabled it bu still the same. Would you mind checking for this setting on your router? Thanks.

[lordstag]

So did you try turning off the firewall? Or did you just assume it can't be that? That's not how troubleshooting works. The same logic can be applied to the router. The router needs no config to work, so it must be your computer.

[geertvnieuw]

I'm unable to turn of the firewall, it is managed by the domain.

Enabled logging in Lync and the log reports DNS resolve problems when connected to the linksys 3200

With the linksys I recieve 3 dns servers, gateway is the last in the list. Others are comming from the ISP.

When I'm connected to my old Belkin (wher lync is working fine) i just recieve the gateway as DNS server.

I wonder if this is the cause and how i can block the DSN servers comming thrue from ISP

[lordstag]

You can try using a static DNS address I suppose. Going into network and sharing center... Change the adapters settings and properties of the network adapter.. If you are not an admin on the computer you might not be able to do this though. But ultimately it is going to use the DNS provided by your ISP either way, unless it connected to a vpn.

Did you have a vpn setup with the old router? Is Lync accessible from any other internet connection outside of work?

[geertvnieuw · Accepted solution]

Hi, finally resolved the problem.

It was a setting in Lync tu use 'automatic configuration'. Strange that it worked with my old router with the static settings.

Problem solved, nothing to do with router in the end ...

Thanks for the replies and help!

[hang4]

Can you be a bit more clear on where in Lync you found this setting?

I have a E4200 and am having a problem where Lync calls drop after 10 seconds, the network actually drops off. It works fine on other wifi networks and if i plug into the router wired it also works fine. The workaround I have found is if I either log into my work VPN or log in as a guest on the router it works fine. Niether is a great long term solution though.. any thoughts?

Thanks