403 error https://bt.centercode.com from my Plusnet

[#1]

...So perhaps try turning off Geolocation in web browser settings?

Mine is turned off.

PS. Just checked. Actually it isn't - it is set to 'Ask'.

[#2]

Thanks, This have been really helpful. I will try and find out how to turn of the geo-location and give it a go.

My fixed ip address was set up a very long time ago.

[#3]

---

@jab1 wrote:

@doug1 When you say 'I signed up for a new line trial', what exactly do you mean? I am a little confused.

---

SOTAP for Analogue.

Openreach Prep Alternative UK Analogue Style Phone Product - ISPreview UK

[#4]

I wouldn't mess about with tracert to sites that do not respond to ping

telnet <destinatioon host> 443 would be a far better test

or use windows power shell command tnc

S C:\> tnc  bt.centercode.com -Port 443

ComputerName     : bt.centercode.com
RemoteAddress    : 44.235.213.94
RemotePort       : 443
InterfaceAlias   : WiFi
SourceAddress    : 192.168.10.100
TcpTestSucceeded : True

[#5]

I will try and find out how to turn of the geo-location

If my suspicion is correct, then you cant do anything to turn it off. The centercode site is using its geolocation database to lookup your IP and decides its not a valid one i.e not UK

[#6]

Trace from non-Plusnet broadband using TCP port #443 -

$ mtr -c 100 -w -r -T -P 443  signin.centercode.com
                                                       Loss% Snt  Last   Avg  Best  Wrst StDv
 1- My-Home-Router                                      0.0% 100   0.3   0.3   0.2   0.4  0.0
 2- My-ISP_Gateway                                      0.0% 100   5.8   5.7   5.5   6.3  0.1
 3- My-ISP-Router                                       0.0% 100   5.6   5.7   5.5   6.1  0.1
 4- te0-1-0-5-0.ccr22.lon01.atlas.cogentco.com          0.0% 100   6.6   6.3   6.0   6.9  0.2
 5- be2870.ccr41.lon13.atlas.cogentco.com               0.0% 100   6.6   7.2   6.0  57.9  5.5
 6- be2490.ccr42.jfk02.atlas.cogentco.com               0.0% 100  72.5  73.5  72.0 111.9  4.4
 7- be4985.ccr21.cle04.atlas.cogentco.com               0.0% 100  83.5  82.9  80.9 111.5  3.2
 8- be2717.ccr41.ord01.atlas.cogentco.com               0.0% 100  91.7  90.2  87.4 146.5  7.6
 9- be5068.ccr32.oma02.atlas.cogentco.com               0.0% 100  96.6  97.8  95.9 122.1  3.4
10- be4995.ccr22.den01.atlas.cogentco.com               0.0% 100 108.4 108.4 106.1 160.3  5.4
11- be5456.ccr32.slc01.atlas.cogentco.com               0.0% 100 115.5 117.1 115.1 152.3  5.3
12- be3110.ccr22.sfo01.atlas.cogentco.com               0.0% 100 131.8 130.8 129.6 174.7  4.6
13- be3670.ccr41.sjc03.atlas.cogentco.com               0.0% 100 131.1 134.3 130.7 212.1 11.9
14- 38.142.246.130                                     54.0% 100 131.2 135.4 130.5 164.7  9.0
15- 15.230.28.27                                       47.0% 100 136.5 137.0 134.8 144.7  2.2
16- 150.222.97.125                                     51.0% 100 139.1 139.1 134.1 159.7  5.3
17- 108.166.240.15                                     92.0% 100 148.4 147.2 146.3 148.4  1.0
18- 108.166.240.21                                     98.0% 100 146.5 146.5 146.4 146.5  0.0
19- ec2-35-161-201-235.us-west-2.compute.amazonaws.com 54.0% 100 146.8 147.3 146.3 150.5  1.0

[#7]

Good advice. Thanks. 

I was told that even if the SSL protocol evenually does not use HTTP, a web browser can be used to check the SSL certificate.

The web browser has the HTTPS padlock saying the certificate is valid. It reports:-

Common Name (CN)  *.centercode.com

This site has a valid certificate, issued by a trusted authority.

This means information (such as passwords or credit cards) will be securely sent to this site and cannot be intercepted.

Other Plusnet users can access it. - Many thanks for this help.

So it seems that the remote site is checking my IP address and does not like it.

I get the 403 error on devices using my PlusNet broadband WiFi. I have tried my smart phone, Win11 and the Raspberry Pi. 

The tnc command shows it can open the TCP/IP connection 

The Web Browser is happy with the certificate.

I can try and set a hotstop on my smart phone and use my Mobile Data allowance as that will have a different IP address.

Thanks everybody for your help. I probably have a "work around" I can use.

[#8]

@doug1 

I just checked your IP here https://www.ipqualityscore.com/ip-reputation-check/lookup/212.56.108.219 

Not good news, it may not just be your IP but others in the same network range

EDIT But https://www.liveipmap.com/  is happy

[#9]

@Dan_the_Van  I've just checked my IP address against the IP quality score, the results are not good....

Before @doug1 gets seriously paranoid has anybody here got a good score ?

[#10]

@Champnet 

I do 80.229.xxx.xxx

I have checked others and it's all a bit random which address pass or not.

I might consider a browser based VPN to bypass the issue

EDIT:

[#11]

What are the symtoms of paranoia ?

 

[#12]

I get similar proxy/VPN warnings on my IPV6 connection result, and I know it isn't a proxy, and I don't use a VPN, so IPQS itself appears suspect.

[#13]

I just posted the link which had a negative result, the paranoia would be self induced. I did mention another site which showed no issue with @doug1 IP Address. https://www.abuseipdb.com/ also does not find an issue

Bit like reading the newspapers, you make your own judgement on the story being read, if necessary do your own research.

[#14]

"This IP address had been detected as a proxy connection"

I wonder what that actually means ?

If it is saying that the tested IP address is on a known list of VPNs, tunnels (such as '6in4'), etc, then that's one thing.

Or is it saying that some proxy like behaviour has been detected between the user's browser and the testing server ?

'proxy like behaviour' *could* be caused by a user's browser extensions, OS anti-virus, ad-blocking, router caching, etc.

When my connection was much slower, I used to use 'squid' as a caching proxy in my router to hugely improve my broadband's perceived download speed, BUT Netflix (only) refused to work because they could detect something between them and my browser. When I disabled the router's caching proxy, then the Netflix VPN/Proxy blocked screen disappeared.

.

[#15]

@outcast  I don’t use a VPN or any other Tunnel method so they can be crossed off your list of possibilities….