Cisco ASA Anyconnect DNS issue

What resources?

Servers, Map Drives,...

It's because of saved credentials or DNS

Try to do a nslookup witht he hostname

See if DNS responds correctly

I het result by IP address not DNS name

C:\WINDOWS\system32>ping yy
Ping request could not find host yy. Please check the name and try again.

C:\WINDOWS\system32>nslookup 10.10.50.250
Server:  yyyy
Address:  10.10.50.10

Name:    yy
Address:  10.10.50.250

On the cisco asa under  group-policy what values do you have under split-dns? it should be the domain name not IP address

It is domain name.  I am able to connect to  some map drives and server by DNS name. Only some of them working with IP address.

the ones that only working with IP, had you mapped them before with UNC ?

Yes, And I also try to access it via \\..... and it doesn't work. I can ping with IP address but not DNS name.

Enable split-exclude tunneling for an IP address, which allows the local DNS requests to flow through the physical adapter

Can you post a scrubbed config?

Also, under your policy-map, you'll see "inspect dns preset_dns_map".  Issue a 'no inspect dns preset_dns_map' command there and then issue an 'inspect dns' command.

I fixed the issue. Since we have to domains. I added the second domain in split-dns command.