Solved Getting yellow triangle over network icon. Some sites load, some don't

[lakenz]

I tried the link and it worked. All links inside the page worked as well.

 

[UsernameIssues]

I tried the link and it worked. All links inside the page worked as well.

Hmmm

Just out of curiosity - what do you get when you try the ping thing on your desktop?

ping facebook.com -f -l 1464

I'm not suggesting that you change anything on the desktop since it is working - just wondering what it shows since it is using the same PPPoE connection.

 

[lakenz]

It would be very tedious trying to ping facebook on my desktop as it very rarely connects to the wireless. (The property manager still hasn't replied to my pleas about my ethernet port not working).

Anyway, It once took a whole day to try to connect to the internet to get steam running because of my poor adapter.

However, I am here enjoying the freedom of the University internet! Quite ironic to say "freedom" as it's on a proxy. He he.

 

[UsernameIssues]

You might want to check back thru your thread - there are a few posts that you've not replied to or commented on.

 

[lakenz]

The conclusion must be that it can't be fixed? I have followed everyone's suggestion, despite not commenting on them. D:

I think I'd have to clean install windows 7 or something, because we've found the most logical answer, and it didn't seem to work. :/

 

[UsernameIssues]

One more thing - are you using a HOST file?

Facebook gets a lot of its css style sheets from fbcdn.net which your HOST file could be blocking.

The HOST file is ignored while you use a proxy at uni.


A clean install sounds like a plan - let us know how it works after you do that.

 

[lakenz]

I am not sure what a HOST file is, so no? I'm not sure! I googled it, and I don't think I am.

I'll have to find my Windows 7 install cd!

Thanks for all your help, I really appreciate it!

 

[UsernameIssues]

If you have a valid Certificate of Authenticity attached to the laptop, you can download a new W7 DVD with SP1 for free:

Windows 7 Direct Download Links

 

[lakenz]

That helps so much, thank you! I was unaware you could do this! Next time I am at uni, I'll download it. Thank you!

 

[TheCyberMan]

Lakenz when you did the ping at 1423 did you get a screen like below and did you add the 28 byte header on to give you an actual mtu 1451 and that is what you should have set the mtu to although the mtu is normally an even number which is divisible by 8.

This my mtu setting i pinged 1464 and then added the 28 byte header on to give me an mtu of 1492 do you understand now.

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ping facebook.com -f -l 1464

Pinging facebook.com [66.220.158.11] with 1464 bytes of data:
Reply from 66.220.158.11: bytes=1464 time=109ms TTL=242
Reply from 66.220.158.11: bytes=1464 time=107ms TTL=242
Reply from 66.220.158.11: bytes=1464 time=119ms TTL=242
Reply from 66.220.158.11: bytes=1464 time=114ms TTL=242

Ping statistics for 66.220.158.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 107ms, Maximum = 119ms, Average = 112ms

C:\Windows\system32>

The bytes will be 1423 in yours bearing in mind that it is usually a an even number divisble by 8.

Please post your ping results at 1423 and please do not overlook this.

 

[lakenz]

C:\Windows\system32>ping facebook.com -f -l 1423

Pinging facebook.com [69.171.229.11] with 1423 bytes of data:
Reply from 69.171.229.11: bytes=1423 time=329ms TTL=241
Reply from 69.171.229.11: bytes=1423 time=260ms TTL=241
Reply from 69.171.229.11: bytes=1423 time=222ms TTL=241
Reply from 69.171.229.11: bytes=1423 time=210ms TTL=241

Ping statistics for 69.171.229.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 210ms, Maximum = 329ms, Average = 255ms

 

[TheCyberMan]

That looks a good reply did you set the mtu to 1451 as that would be the correct setting for the computer i would do this and then re-boot pc.

 

[lakenz]

I did, and it didn't work.

 

[TheCyberMan]

When you set the mtu to 1451 you did restart the laptop to complete the re-configuration please confirm?

Also what internet security package are you using(anti-virus and firewall)?

 

[lakenz]

I did restart, yes. Unless I was supposed to do it a specific way?

 

[doubled822]

Lakenz,

Do you have access to a USB WLAN adapter? I'm curious to see if you face the same issue on a different WiFi adapter.

 

[TheCyberMan]

That is fine Lakenz you did it right no special way.

And the internet security package....

 

[lakenz]

doubled822 - No. D:

TheCyberMan - AVG Free

 

[TheCyberMan]

And firewall...

 

[lakenz]

Windows Firewall