iPhone not connecting to Sure Signal

[spewage]

Moved Sure Signal to new location - all working fine with HTC One.

Unable to get iPhone 6s to connect - have deleted user and re-added.

Have 60Mb down and 18Mb up

IP 81.129.190.89

C:\Users\Stephen>tracert 212.183.133.177

Tracing route to 212.183.133.177 over a maximum of 30 hops

1 2 ms 2 ms 2 ms BThomehub.home [192.168.1.254]
2 16 ms 16 ms 16 ms 217.32.141.144
3 16 ms 20 ms 15 ms 217.32.141.206
4 20 ms 19 ms 19 ms 212.140.235.82
5 20 ms 19 ms 19 ms 31.55.164.241
6 19 ms 19 ms 20 ms 31.55.164.109
7 19 ms 19 ms 19 ms acc2-10GigE-0-2-0-7.bm.21cn-ipp.bt.net [109.159.248.238]
8 24 ms 26 ms 26 ms 109.159.252.212
9 24 ms 24 ms 24 ms peer6-te0-0-0-15.telehouse.ukcore.bt.net [109.159.254.233]
10 24 ms 23 ms 26 ms t2c3-et-8-1-0-0.uk-lon1.eu.bt.net [166.49.211.240]
11 24 ms 29 ms 24 ms 166-49-211-254.eu.bt.net [166.49.211.254]
12 * * * Request timed out.
13 * * * Request timed out.
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.

[Rahim]

@spewage We've recently released a new carrier update (Vodafone UK 24.1). You'll need to ensure you have the latest carrier version running on your iPhone. 

To update your carrier please follow the below: 

Tap Settings > General > About. If an update is available, a prompt will appear.

Wi-Fi Calling is available on the iPhone 6S, this will allow you to make and receive calls and texts at wherever you have a Wi-Fi connection. 

If you're still having trouble, please let us know your Sure Signal serial number.