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Can't connect to internet behind a firewall.
I have just purchased a new Vostro 3700. At home, it will immediately connect through my Linksys router/firewall either by wireless or cable. However, with a wired connection at work, it can access the network, but can't get past the Sonicwall TZ170 firewall/router to the internet. It is assigned an i.p. address by DHCP, has good connectivity, but cannot "sniff out" other computers on the network either. The operating system is Windows 7 32-bit, the details of which I am not familiar. All of the Windows XP computers I have in the office have just connected up to the internet without any intervention, and "sniff out" the other computers in the Network Neighborhood.
It appears there must be some new interaction between Windows 7 and the Sonicwall, such as using a different firewall port to access the internet, or something. I am fairly good at networking, but am baffled.
Anyone had similar problems going from Windows XP to Windows 7? If so, how did you fix it?
Thanks,
Eric Spooner
Eric,
The Sonicwall really shouldn't behave any differently in regard to another OS being used (Win 7 x86).
Do you know if your network administrator uses MAC addresses to restrict access to the external network or network shares?
Do they use active directory?
What OS are the host computers you are trying to access the network share running?
I am the network guy, and we don't use MAC addresses to restrict access, though I have done so at home on my network, so I know what you are referring to.
We are not using active directory.
The other computers are largely Windows XP, though a few old ones in the front office use Windows 2000. They all have no problems with internet access.
I checked the Sonicwall, and port 80 is open for internet (the usual default). Does Windows 7 look for a different port or something?
Eric
ejn63
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Posted March 15th, 2011 17:00
By default file/printer sharing are off -- did you turn them on?