Network Busy/Read Only Documents

[bdarnes]

We are having issues with our windows clients (XP and 7) opening and saving documents. Occasionally the users will open a document make changes and be able to save the file. Usually they recieve a pop up that says either network busy or that the file is read only. Mac clients do not have any issues.

Server: Ubuntu 10.04.2
Open VPN: 2.2.0 and

Any help would be appreciated.

Server Config:

local 10.x.x.x
port 443
proto tcp
dev tun
ca ca.crt
cert server.crt
key server.key
client-cert-not-required
username-as-common-name
plugin /usr/lib/openvpn/openvpn-auth-ldap.so /etc/openvpn/auth-ldap.conf
dh dh1024.pem
server 172.x.x.x 255.255.255.0
ifconfig-pool-persist ipp.txt
push "route 10.x.x.x 255.255.255.0"
push "route 10.x.x.x 255.255.255.0"
push "route 10.x.x.x 255.255.255.0"
push "route 10.x.x.x 255.255.255.0"
push "route 10.x.x.x 255.255.255.0"
push "route 172.x.x.x 255.255.255.0"
push "dhcp-option DNS 10.200.10.5"
push "dhcp-option DOMAIN domain.com"
duplicate-cn
keepalive 10 120
comp-lzo
persist-key
persist-tun
status /var/log/openvpn/openvpn-status-tcp.log
log-append /var/log/openvpn/openvpn-tcp.log
verb 3
script-security 2
link-mtu 1456
mssfix 1412

[janjust]

so the clients can connect successfully? IP routing works? how are the windows clients accessing files? via a Samba share? or directly to a windows file server? this sounds more like a Windows networking issue than a VPN issue.

have you tested that IP connectivity works ? tried to download a large file from the server?

[bdarnes]

Yes, clients can connect to the VPN, IP routing works and we are able to download large files successfully. Clients are accessing files via Samba.

Thanks!!

[janjust]

this is a very nasty problem to troubleshoot:
*) the vpn works
*) accessing files on the samba share works
*) sometimes you get 'network busy' errors

hmmm your best bet is to optimize the throughput and latency for your windows clients; what kind of download/upload speeds are they getting?

also, then the 'network busy' message pops up, what do the samba logs show?