Network share keeps dropping, SBS 2011 & W7 clients

i have sbs2011 windows 7 clients. using common network share, small company, 20 clients.

there 3 or 4 people telling me on random days, 2 or 3 times day, click on network drive , take between 3-10 minutes folder view populate. same thing when trying save file share. when try save file, says network drive isn't accessible , have save file locally. have couple databases open server have re-open , reconnect when happens.

any ideas? office @ remote location internet connection dial-up speed. i've gotten updates installed on server. of clients way out of date , wsus not working correctly (i took on services client). have old unmanaged 10/100 linksys switch tonight replacing new cisco managed 48port gigabit switch. after install, i'm going run of diagnostics in switch. i'm hoping network issue of kind...

what think? network related? patch related? else?

thanks! alex

i'd definately start network switch, wiring (got cable tester?).

i snmp monitor switch bandwidth, etc.  program called ipmonitor (solarwinds company), although, it's not cheap, but it can monitor can think of (servers, switches, etc).

how old client pc's? mentioned windows 7 on clients, infer newer (rather older) but, never know. older boxes have nic problems.

you might see if configured, , turn off ipv6 on nic properties (stretching here).

turn off firewall on clients if on (another slight stretch).

the network dhcp?  what's lease time, etc?

Windows Server  >  File Services and Storage