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Fellwalker
Aspiring Expert
403 Views
Message 21 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

Yes, I restarted it yesterday.

Will try a reset.

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To err is human, but to really mess it up requires a computer
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Distinguished Sage
Distinguished Sage
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Message 22 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

There is a lot of "rubbish" which is retained in the home hub flash memory, which can cause routing issues, so a factory reset should clear that out.

 

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dnpark38
Aspiring Expert
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Message 23 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

Had a reply from PCS and they suggested a couple of things but neither have helped me.

 

 

"  Command prompt (Start Button > Type ‘cmd’ > Right Click on the ‘Command Prompt’ > Select ‘Run as Administrator’):

 

ipconfig /flushdns

 

Finally, restart your computer and see if this has had any effect. Otherwise, I would consider changing your DNS servers to the open-Source Google equivalents. I will take you through this process:

 

Start Button > Settings (Cog) > Network and Internet > ‘Change Adaptor Settings’ > Right Click on the Adaptor that you are using (Ethernet or your Wireless Connection) > Properties > Select ‘Internet Protocol Version 4’ > Properties > Advanced > ‘DNS’ tab 

 

At this point, if there are any DNS server IP addresses listed there, write them down for future reference, and remove them from the listing. This is just in case that the new DNS server properties do not work and we have to revert to the original. Once you have these, please continue with the following steps:

 

Click the ‘Add’ button > Add the DNS Server “8.8.8.8” > Click ‘OK’ > Tick the box to ‘Validate settings upon exit’ > Click ‘OK’.  "

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Fellwalker
Aspiring Expert
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Message 24 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

@dnpark38  Yes, I got that message too.  THe first option did not help.  The second is why I posted on THIS forum.  BT ought to have a decent dns server, and if they are at fault, they need to get it sorted.

Besides that, my Android phone and tablet cannot have their DNS changed so easily.

The BT Smart Hub cannot have its DNS lookup changed either.

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To err is human, but to really mess it up requires a computer
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Distinguished Sage
Distinguished Sage
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Message 25 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?


@Fellwalker wrote:

The BT Smart Hub cannot have its DNS lookup changed either.


Use a third party router instead. Then use OpenDNS or another DNS service.

 

 

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Fellwalker
Aspiring Expert
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Message 26 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

Why should I pay for something that is provided (at a charge) by BT?  I have their latest "fastest wifi" router.

 

If I wanted a supplier that required my own router I'd have gone with one.  Like I did with the excellent BeThere / BE Unlimited before they were wound up by their parent company.

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To err is human, but to really mess it up requires a computer
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Fellwalker
Aspiring Expert
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Message 27 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

Regrettably there is something else afoot here.

 

I have succumbed and changed the DNS settings in my laptop - first to google and then to open DNS .

 

Whichever DNS Server I try, if I connect to my router using the BTHub6 connection, I cannot reach the pcspecialist forums.

 

If I connect to my router using the BTWiFi-with-fon connection, it works perfectly.

 

Whichever way I am connected, if I use CMD and nslookup, the BTHub6 shows first the DNS server and address, then the IP address for pcspeciliast.

 

If I do that while connected to BTWiFi, that nslookup first shows

Server:  UnKnown
Address:  192.168.22.22

 

Is there a setting in the BTSmartHub / Hub6 that is affecting this?

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To err is human, but to really mess it up requires a computer
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Distinguished Sage
Distinguished Sage
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Message 28 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?


@Fellwalker wrote:

If I do that while connected to BTWiFi, that nslookup first shows

Server:  UnKnown
Address:  192.168.22.22

 

Is there a setting in the BTSmartHub / Hub6 that is affecting this?


Yes, BT Wifi uses an internal DNS relay. It was the same on the home hub 1, so its probably the same in later home hubs.

The home hub 1 used a different internal relay address.

 

From Home Hub 1 user.ini file (Openzone is the same as BT Wifi)

 

add name=openzoneadd index=15 command="dhcp relay modify name=_dyn_WL$1rel intf=_dyn_WL$1IP addr 192.168.1.2 giaddr=10.10.10.138"

 

 

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Fellwalker
Aspiring Expert
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Message 29 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?


@Keith_Beddoe wrote:

@Fellwalker wrote:

If I do that while connected to BTWiFi, that nslookup first shows

Server:  UnKnown
Address:  192.168.22.22

 

Is there a setting in the BTSmartHub / Hub6 that is affecting this?


Yes, BT Wifi uses an internal DNS relay. It was the same on the home hub 1, so its probably the same in later home hubs.

The home hub 1 used a different internal relay address.

 

From Home Hub 1 user.ini file (Openzone is the same as BT Wifi)

 

add name=openzoneadd index=15 command="dhcp relay modify name=_dyn_WL$1rel intf=_dyn_WL$1IP addr 192.168.1.2 giaddr=10.10.10.138"

 

 


Thanks Keith

 

To confirm:-

Properties from the BTWiFi-with-fon connection pop up shows

SSID:    BTWifi-with-FON
Protocol:    802.11n
Security type:    Open
Network band:    2.4 GHz
Network channel:    11
IPv4 address:    10.23.152.37
IPv4 DNS servers:    192.168.22.22
192.168.22.23
Manufacturer:    Intel Corporation
Description:    Intel(R) Centrino(R) Wireless-N 1030
Driver version:    15.4.1.1
Physical address (MAC):    AC-removed-A6

 

When connected via BTHub6, it shows

SSID:    BTHub6-5FC2
Protocol:    802.11n
Security type:    WPA2-Personal
Network band:    2.4 GHz
Network channel:    11
IPv6 address:    2a00:removed:a24f
fdaa:bbcc:ddee:0:edd9:aa84::a24f
IPv4 address:    192.168.removed
IPv4 DNS servers:    208.67.222.222  (the openDNS servers)
208.67.220.220
DNS suffix search list:    home
Manufacturer:    Intel Corporation
Description:    Intel(R) Centrino(R) Wireless-N 1030
Driver version:    15.4.1.1
Physical address (MAC):    AC-removed-A6

 

 

Anyhow, changing the DNS server has not made any difference at all over whether I can get through to the pcspecialist forums.  In between changes I have tried with and without executing an ipconfig /dnsflush command followed by a reboot.

If changing the DNS Server has no effect, what can be happening and what can I do?

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To err is human, but to really mess it up requires a computer
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Distinguished Sage
Distinguished Sage
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Message 30 of 51

Re: BT Infinity won't connect to pcspecialist forum, but BTWiFi will. DNS issue or something else?

@Fellwalker

Its a bit like this thread https://community.bt.com/t5/Connected-Devices-Other/Pinterest-won-t-load-pics/td-p/1806201

 

You can see the only solution there.

 

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