Sophos User Portal - Not Allowing External Networks/No Connection

select "allow all users" apply it and try again.

This doesn't work - I'm not even sure why it would as it's a connection issue and not a user issue anyway. 

please try the userportal with other browsers like firefox, chrome maybe on a pc to see if it is working.

i know there are issues with different browers not working any more cause of securtiy (something with old lts unsupported.. )

i just tried mine on my iphone (ios 9.x) and safari shows the userportal...

also check the basics:

advanced / Network Settings.. check for right port (443) and right adresses for your environment

I'm currently checking this on my iPhone 6 running the latest OS and using Safari - still no joy :( It says: "Safari cannot open the page because the network connection was lost".

I've tried using the external address - i.e. x.x.x.x:443 

I've also changed the hostname of the portal and added a DNS record pointing to the external address of the Sophos UTM on our DNS server, but Safari then says it can't find the server "company.co.uk". I suspect that's a different issue, though. 

I've just tested this internally using Internet Explorer and I can access the user portal fine. It seems to be rejecting outside addresses for some reason... 

seems your dns-record is not right configured.. not the internal dns the dns record in the internet that points to your external ip adress of the wan interface..

checking is simple:

open cmd on a windows pc. type nslookup   / type server 8.8.8.8   / type your domain

so you can check if the google dns server can find right adress for your dns-name...

It can find 'companyname.co.uk', but when I try 'company-portal.companyname.co.uk', it can't find it. But that is using Google as a DNS server. 

I thought the query would come into our DNS server and it would resolve it, as long as the address was 'company-portal.companyname.co.uk' (considering companyname.co.uk works outside). 

However, there does still seem to be something wrong on the Sophos configuration because it still doesn't work, even when using the external address (and therefore completely bypassing this DNS issue). 

need more detailed description to help..

- show your config page from user portal.

- have you any NATs configured?

- search log files....