After some regular internet browsing, I decided to watch a movie.
Came back after that only to find I can't access any of the Google services... Even Facebook seems down for me...

I tried Bing, Yahoo, but to no avail.

Oddly enough GOG, Steam, Origin, news sites, etc - all working without problems...

In my home I am connected to a router and I share connection with a laptop (wireless). Everything is OK on laptop, but on my PC websites seems filtered all of a sudden. I reset the router, flushed DNS cache, etc but nothing seems to work.

Any network guru could point me in the right direction please?
I can't even search for a solution online it seems.

Thank you.

Have you tried turning it off and on again?

Have you tried turning it on and then off again?

Yes, I did that in the first place.

A lot of viruses and malware block search engines so that you can not search for the removal software. Just a thought.

Sneaky IT crowd reference there.

Yes, I know that. I'm running scans as we speak, but nothing so far.
I checked hosts file as well, it's not changed.

I have the same problem three days ago, I'm cannot access some pages from the desktop, but I'm can from the smathphone. At the end the problem was in the ISP side. I'm suposse that for some reasson, the mac address of the desktop was filtered by the ISP.

Upon refreshing, now I'm getting this:


An error occurred during a connection to www.youtube.com. SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long)

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem. Alternatively, use the command found in the help menu to report this broken site.


It's the same for another website that is not working.

Scanning with antivirus / mbam didn't yield any threats.

As I'm say before, is the same problem that I'm have the another day, and the problem was in the ISP side.

because its most likely is not a virus or spyware. if you google that error alot of hits come up in combination with firefox, which we can assume you are using too. https://support.mozilla.org/nl/questions/976596

https://www.google.nl/#q=www.youtube.com.+SSL+received+a+record+that+exceeded+the+maximum+permissible+length&safe=off

Oh, the irony.

i assumed when you said everything is okay on your laptop, that it worked there or atleast have some way to visit websites as you can type here too.

hmm okay well if its all browsers, might be something else. did you try reconnecting your router?
might as well be to contact your isp, but since it's sunday i guess you have to wait.

try lowering your MTU.

For some reason that has escaped me Path MTU Discovery (PMTUD) in Windows just doesn’t seem to figure out the MTU for a given path (something to do with routers being poorly configured to not respond to ICMP requests). So Windows uses the default. For the most part this doesn’t affect anyone, however if it does affect you, it really annoys you. Failure of PMTUD will result in some websites not loading correctly, having trouble connecting to normally reliable online services and general Internet weirdness.

The resolution is to set your default MTU to one lower than the Ethernet default of 1500. Here is how:

Step 1: Find your MTU

From an elevated Command Prompt in Vista/Windows 7 or the same elevated Command Prompt in Windows 8 enter the following command:

netsh interface ipv4 show subinterfaces

You should get something like this

MTU MediaSenseState Bytes In Bytes Out Interface
---------- --------------- --------- --------- -------------
4294967295 1 0 13487914 Loopback Pseudo-Interface 1
1500 1 3734493902 282497358 Local Area Connection

If you are using Ethernet cable you will be looking for “Local Area Connection” or “Ethernet”. If you are using Wireless you will be looking for “Wireless Network Connection”. The MTU is in the first column.

Step 2: Find out what it should be

In the Command Prompt type:

ping www.cantreachthissite.com -f -l 1472

The host name should be a site you can not reach, -f marks the packet as one that should not be fragmented the -l 1472 sets the size of the packet (1472 = Ethernet Default MTU – Packet Header, where the Ethernet Default MTU is 1500 and the Packet Header is 28 bytes)

If the packet can’t be sent because it would need to be fragmented you will get something similar to this:

Packet needs to be fragmented but DF set.

Keep trying lower packet sizes by 10 (i.e. -l 1460, 1450, 1440, etc.) until you get a successful ping request. Raise your packet sizes by one until you get a “Packet needs to be fragmented but DF set.”. The last successful value plus 28 will be your MTU value.

In my case a packet size of 1430 succeeds but 1431 fails, so 1430 + 28 = 1458.

Step 3: Set your MTU

Now you have identified the interface you need to change and the ideal MTU for you, now it is time to make the change. Again from an elevated Command Prompt type the following replacing my MTU of 1458 with your own value:

netsh interface ipv4 set subinterface "Local Area Connection" mtu=1458 store=persistent

Or if you are using a Wireless connection:

netsh interface ipv4 set subinterface "Wireless Network Connection" mtu=1458 store=persistent

If all has gone well you should have a perfectly working internet connection.