Lync 2010 Client "The server is not responding or cannot be reached."

Hello EE,

We had a problem with our original Lync install so had to reinstall.  Everything was working on the client side originally and we didn't remove any firewall or DNS configuration so thought this would work.  Now clients can't connect getting error. "The server is not responding or cannot be reached.  Sign-in may be delayed while we retry the connection"
Any thoughts?
bergquistcompanyAsked:
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bergquistcompanyConnect With a Mentor Author Commented:
No nor heard so going to reinstall server from scratch
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ibrahim52Team LeaderCommented:
Try the link below if it helps.

Referred link :
http://community.office365.com/en-us/forums/167/t/5225.aspx
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justinoleary911Commented:
go under advanced settings of the lync client and input the manual config below, after that it should work fine for you.

lync
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jeliassonCommented:
Hi,

We experienced the same issue as you are describing. We did solve it by create one additional SRV-record in DNS for the domain. See DNS records below being used for each of our domains.

Type:       SRV
Host:       _sip._tls
Value:       100 1 443 sipdir.online.lync.com

Type:       SRV
Host:       _sipfederationtls._tcp
Value:       100 1 5061 sipfed.online.lync.com

Type:       CNAME
Host:       lyncdiscover
Value:       webdir.online.lync.com

I hope this helps.
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bergquistcompanyAuthor Commented:
When I changed to manual and added our domain name:
lync.bergquistcompany.com:443
I got "There was a problem verifying the cretificate from the server"

@jeliasson we have _sip._tls but it's 0 0 5061 for values.  We don't have a federation setup and for a cname we have our fqdn and target as sipdir.online.lync.com.
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justinoleary911Commented:
your not supposed to put lync.yourdomain.com:443

Put exactly what I have in the screen shot under manual configuration.

sipdir.online.lync.com:443
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bergquistcompanyAuthor Commented:
with that it says name, password or domain appears to be incorrect.  Ensure that you entered them correctly.  If the problem continues, please contact your support team.
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justinoleary911Commented:
what office 365 plan do you have, is it the P plan?
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jeliassonCommented:
I believe you will, as above, encounter certificate error if you are trying to connect to a domain name which is not valid in Microsoft certificate. In this case, you are trying to connect to lync.bergquistcompany.com:443 and as you don't have your hostname in their certificate you'll get errors.

I strongly recommend using autodiscovery and port 443 rather than 5061 due to potential public hotspot firewall restrictions.
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bergquistcompanyAuthor Commented:
We don't have office365 only Lync Server
I think I'm closer.  When I launch topology builder it has a red line thorugh lync server 2010.  I don't think it's running.  Services are started.  What can I check.
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jeliassonCommented:
Oh, we thought you were using Office 365 as you have specified the topics:
Chat / IM Software, Microsoft Office 365, Server Applications
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jeliassonCommented:
Any luck?
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bergquistcompanyAuthor Commented:
After hours with Microsoft support had to reinstall
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