In the last couple of days when trying to connect to Xbox Live on my Xbox 360, I've been getting an MTU Error. I've never had this error before, and it only started happening last night. I thought it might resolve itself, but it hasn't yet.
I've tried everything in this guide that the console links me to, to no avail: http://support.xbox.com/en-US/xbox-live/connecting/network-insufficient-mtu-setting
I've also tried the top hits on Google when searching for other fixes to the MTU Error.
Here is the info the sticky says I should post, maybe you guys will have a better idea:
What Country/State/Province do you live in? United States, California
Modem brand & model number: N/A, direct ethernet connection provided in my apartment
Router brand & model number: ASUS RT-N13U Rev. B1 with latest firmware installed
Is UPnP Enabled? Yes
Do you have a NAT error? MUT Error, not NAT
Any Error Codes you encounter: No code, just says MTU Error
Who is your ISP(Internet Service Provider)? University provided, and they won't release who the ISP is
Another thing, my router simply runs as an ethernet hub, since we're only provided one ethernet port otherwise.
Thanks in advance for looking at my problem :)