New C7, some sites will not load/load incredibly slowly.

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New C7, some sites will not load/load incredibly slowly.

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New C7, some sites will not load/load incredibly slowly.
New C7, some sites will not load/load incredibly slowly.
2015-10-20 19:36:09
Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Used old Netgear router, worked okay but signal strength was low and iffy at times.

Purchased C7 (made Wirecutter's "Best" category; thought it would be a good choice).

Plugged in, input PPoE settings, got on, everything was okay. Chromecast doesn't work if I enable a Wifi password but whatever--it had the exact same issue with the Netgear so that's on Google, I guess.

However... Tumblr will not load. Plex gives weird issues. Tried to look up how to port-forwad for Plex and none of their support sites will load. Wife couldn't get some recipe site she likes to load. She is also very unhappy without access to Tumblr.

Tried on Windows computer. Nope. Tried on other Mac. Nope. Tried on phone over wifi. Nope. Tried in three different browsers on two different computers. Nope.

Plugged the old Netgear back in. Everything works. Tumblr loads in half a second. Plex is working without a hitch. Wife's recipe site works again.

Back to the C7. Set it to use Google's DNS (8.8.8.8, 8.8.4.4). Reboot. Set Google's DNS in computer. Nope; Tumblr still won't load. Download latest firmware + update. Nope, Tumblr still won't load. Restart it a few times. Nope, Tumblr still won't load. Test the Netgear again. Tumblr loads perfectly.

Any suggestions?
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Re:New C7, some sites will not load/load incredibly slowly.
2015-10-21 10:22:22
Go to IPv6 Support---IPv6 Setup page. Uncheck Enable IPv6 or change WAN connection type to Tunnel 6to4.
If it doesn't help, change MTU on Network---WAN page to 1440 or 1400.
BTW, what's the hardware version and firmware version of your C7?
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Re:New C7, some sites will not load/load incredibly slowly.
2015-10-21 19:41:28

Tony Seaford wrote

Go to IPv6 Support---IPv6 Setup page. Uncheck Enable IPv6 or change WAN connection type to Tunnel 6to4.
If it doesn't help, change MTU on Network---WAN page to 1440 or 1400.
BTW, what's the hardware version and firmware version of your C7?
Thanks for the tip! It was the MTU; should've been 1440. I ran the manual ping test, got fragments at exactly 1413.

Hardware version 2, firmware 150427

Thanks again!
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