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Connectivity issues with internet-based programs

Not sure if this is the right forum, sorry.

I've been running Vista on my new desktop for the past 5 months with no problems and just recently, May 20th, I haven't been able to connect to programs such as AIM, X-Fire, and Skype. I'm still connected to the internet, Firefox and IE work fine, but I just can't connect to anything else. I'm not sure what is wrong but i know it has to be something i did on my computer. Hopefully someone can help me.

On a side note, the reason I know nothing can be wrong with my router or internet connection itself is because my roommate uses the same router and has no problems whatsoever.

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In reply to: Connectivity issues with internet-based programs

The programs you mentioned use a different protocol and port. See what the default port for each is and if the firewall allows traffic for each.

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In reply to: start help

I've checked on both my router and firewall, the ports are allowed. I just don't understand why they would stop working all of a sudden when I've never had a problem before.

I've also disabled my firewall to see if it was the problem and it still wouldn't work. I can't connect directly to the internet because according to the maintenance employees of the apartment I live it the router is built into the wall outlet or something, not sure exactly sorry.

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In reply to: thanks

It may be a dhcp lease problem. See what your IP is.
From wikipedia
"The current IANA private internet addresses are:
Name IP address range number of IPs classful description largest CIDR block defined in
24-bit block ? 16,777,216 single class A RFC 1597 (obsolete), RFC 1918
20-bit block ? 1,048,576 16 contiguous class Bs
16-bit block ? 65,536 256 contiguous class Cs"
If your IP matches any of these, you have a router problem, find the router and access the menu.

If your IP doesn't match any of those classes, you need a router. Running multiple boxes on a single lease can cause a lot of network problems.

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