Mapped drives disconnect and will not reconnect

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i having odd problem drives mapping on w2k8r2 server.

 

randomly drives become unavailable users remote on server itself.  server has 35 rdp users , no actual pc clients.  drives being mapped, on rdp server.  here layout:

 

\\server1 - pdc, dns, dhcp.  win2k8r2 xxx.xxx.xxx.150

\\server2 - rdp win2k8r2  xxx.xxx.xxx.155

\\server3 - virtual server 32 bit apps not compatible - win2k8 32 bit xxx.xxx.xxx.160

 

all 35 users log server2.  server 24/7 , in use 24 hours day between users in , offshore.  users 35, 10 off shore on night.

 

there 5 drive mappings setup via policy

 

f: \\server1 - ftp drop box

m:, r:, q:, , p: - data shares on server2 off of local d: drive.

 

server2 has 2 raid arrays, 2nd array d: , shares live.  users log 155 , drive maps 155.  drive mappings show error cannot connect them, red x on drive.  stop working.  happens every 2-3 weeks randomly far can tell.  on several occasions problems resolves in few minutes.  i'd the call have problem, remote in , in 2-3 minutes problem gone.  other times problem not rectify until server rebooted.

 

here odd part.  f: drive on server1 works no problem.

 

if login 150 or 160 server drives 155 server show fine , work no problem.

 

if browse 155 server \\server2 of shares show not accessible.

 

if browse 155 server \\xxx.xxx.xxx.155 shares show , work.

 

the dns has record \\server2 fqdn correct.  can ping , resolve fqdn off of 155 server itself.

 

i've scoured logs , can't find @ all.  no errors on either 150 or 155 server.  i've tried restarting dns on 150, browser services on 155, nothing works.

 

it totally random far can tell , seems have during low server loads.  there few people work late night , we've had happen either around 10pm @ night when there 2-3 people on before offshore people start, , in morning when we're down 2-3 off shore people , users starting login.

 

neither of servers rebooting due updates anytime happens.

 

any idea's?

hi eric,

 

thanks posting here.

 

> if browse 155 server \\server2 of shares show not accessible.

what’s particular system prompt popped when attempted access?

 

please try modifying problematic mapping driver address “ \\localhost\*** “ or “ \\<fqdn of server 2>\*** ”and check if issue persist?

 

meanwhile, i’d suggest take introduction of smb signing feature in link below , check registry key settings:

 

server message block communication between client-side smb component , server-side smb component not completed if smb signing settings mismatched in group policy or in registry

http://support.microsoft.com/kb/916846

 

thanks.

 

tiger li

 

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Windows Server  >  File Services and Storage