Sorry for the delay I was exporting the log - still no change; but here is the log:
16:07:53 radius,debug,packet Acct-Input-Gigawords = 0
16:07:53 radius,debug,packet Acct-Output-Gigawords = 0
16:07:53 radius,debug,packet Acct-Input-Packets = 1237
16:07:53 radius,debug,packet Acct-Output-Packets = 464
16:07:53 radius,debug,packet Acct-Session-Time = 1801
16:07:53 radius,debug,packet NAS-Identifier = "ms64.Domain.co.uk"
16:07:53 radius,debug,packet NAS-IP-Address = HOTSPOT IP (ext)
16:07:53 radius,debug,packet Acct-Delay-Time = 0
16:07:53 radius,debug,packet received Accounting-Response with id 214 from 86.7.2
38.217:1813
16:07:53 radius,debug,packet Signature = 0x81e5a183e64c2a01095edf3a67392343
16:07:53 radius,debug received reply for 3f:217
16:07:53 radius,debug request 3f:217 processed
16:08:02 radius,debug new request 3f:218 code=Accounting-Request service=hotspot
called-id=hotspot1
16:08:02 radius,debug sending 3f:218 to remote IP7:1813
16:08:02 radius,debug,packet sending Accounting-Request with id 215 to RADIUS IP
17:1813
16:08:02 radius,debug,packet Signature = 0xb027847190c8e76090d70dc3dcf3363e
16:08:02 radius,debug,packet Acct-Status-Type = 3
16:08:02 radius,debug,packet NAS-Port-Type = 19
16:08:02 radius,debug,packet Calling-Station-Id = "00:08:A1:93:0D:6C"
16:08:02 radius,debug,packet Called-Station-Id = "hotspot1"
16:08:02 radius,debug,packet NAS-Port-Id = "bridge"
16:08:02 radius,debug,packet User-Name = "test1"
16:08:02 radius,debug,packet NAS-Port = 2156920836
16:08:02 radius,debug,packet Acct-Session-Id = "80900004"
16:08:02 radius,debug,packet Framed-IP-Address = 10.5.50.254
16:08:02 radius,debug,packet MT-Host-IP = 10.5.50.254
16:08:02 radius,debug,packet Event-Timestamp = 1290355682
16:08:02 radius,debug,packet Acct-Input-Octets = 187152
16:08:02 radius,debug,packet Acct-Output-Octets = 136854
16:08:02 radius,debug,packet Acct-Input-Gigawords = 0
16:08:02 radius,debug,packet Acct-Output-Gigawords = 0
16:08:02 radius,debug,packet Acct-Input-Packets = 1244
16:08:02 radius,debug,packet Acct-Output-Packets = 471
16:08:02 radius,debug,packet Acct-Session-Time = 1810
16:08:02 radius,debug,packet NAS-Identifier = "ms64.Domain.co.uk"
16:08:02 radius,debug,packet NAS-IP-Address = HOTSPOT IP (ext)
16:08:02 radius,debug,packet Acct-Delay-Time = 0
16:08:02 radius,debug,packet received Accounting-Response with id 215 from 86.7.2
38.217:1813
16:08:02 radius,debug,packet Signature = 0x4ad80d5f09a1b7e3be0bfc011c2985fb
16:08:02 radius,debug received reply for 3f:218
16:08:02 radius,debug request 3f:218 processed
16:08:12 radius,debug new request 3f:219 code=Accounting-Request service=hotspot
called-id=hotspot1
16:08:12 radius,debug sending 3f:219 to remote IP7:1813
16:08:12 radius,debug,packet sending Accounting-Request with id 216 to RADIUS IP
17:1813
16:08:12 radius,debug,packet Signature = 0x987dddce19814dec7989f27fbb4d9edf
16:08:12 radius,debug,packet Acct-Status-Type = 3
16:08:12 radius,debug,packet NAS-Port-Type = 19
16:08:12 radius,debug,packet Calling-Station-Id = "00:08:A1:93:0D:6C"
16:08:12 radius,debug,packet Called-Station-Id = "hotspot1"
16:08:12 radius,debug,packet NAS-Port-Id = "bridge"
16:08:12 radius,debug,packet User-Name = "test1"
16:08:12 radius,debug,packet NAS-Port = 2156920836
16:08:12 radius,debug,packet Acct-Session-Id = "80900004"
16:08:12 radius,debug,packet Framed-IP-Address = 10.5.50.254
16:08:12 radius,debug,packet MT-Host-IP = 10.5.50.254
16:08:12 radius,debug,packet Event-Timestamp = 1290355692
16:08:12 radius,debug,packet Acct-Input-Octets = 189058
16:08:12 radius,debug,packet Acct-Output-Octets = 139751
16:08:12 radius,debug,packet Acct-Input-Gigawords = 0
16:08:12 radius,debug,packet Acct-Output-Gigawords = 0
16:08:12 radius,debug,packet Acct-Input-Packets = 1262
16:08:12 radius,debug,packet Acct-Output-Packets = 478
16:08:12 radius,debug,packet Acct-Session-Time = 1820
16:08:12 radius,debug,packet NAS-Identifier = "ms64.Domain.co.uk"
16:08:12 radius,debug,packet NAS-IP-Address = HOTSPOT IP (ext)
16:08:12 radius,debug,packet Acct-Delay-Time = 0
16:08:12 radius,debug,packet received Accounting-Response with id 216 from 86.7.2
38.217:1813
16:08:12 radius,debug,packet Signature = 0xab8305f1c07f34169f7bdc5306ec52c6
16:08:12 radius,debug received reply for 3f:219
16:08:12 radius,debug request 3f:219 processed
16:08:21 system,info,account user username logged in from remote IP7 via tel
net
16:08:23 radius,debug new request 3f:21a code=Accounting-Request service=hotspot
called-id=hotspot1
16:08:23 radius,debug sending 3f:21a to remote IP7:1813
16:08:23 radius,debug,packet sending Accounting-Request with id 217 to RADIUS IP
17:1813
16:08:23 radius,debug,packet Signature = 0x85197ca7a194f9659c9b602d9c11d6ed
16:08:23 radius,debug,packet Acct-Status-Type = 3
16:08:23 radius,debug,packet NAS-Port-Type = 19
16:08:23 radius,debug,packet Calling-Station-Id = "00:08:A1:93:0D:6C"
16:08:23 radius,debug,packet Called-Station-Id = "hotspot1"
16:08:23 radius,debug,packet NAS-Port-Id = "bridge"
16:08:23 radius,debug,packet User-Name = "test1"
16:08:23 radius,debug,packet NAS-Port = 2156920836
16:08:23 radius,debug,packet Acct-Session-Id = "80900004"
16:08:23 radius,debug,packet Framed-IP-Address = 10.5.50.254
16:08:23 radius,debug,packet MT-Host-IP = 10.5.50.254
16:08:23 radius,debug,packet Event-Timestamp = 1290355703
16:08:23 radius,debug,packet Acct-Input-Octets = 189446
16:08:23 radius,debug,packet Acct-Output-Octets = 139913
16:08:23 radius,debug,packet Acct-Input-Gigawords = 0
16:08:23 radius,debug,packet Acct-Output-Gigawords = 0
16:08:23 radius,debug,packet Acct-Input-Packets = 1269
16:08:23 radius,debug,packet Acct-Output-Packets = 481
16:08:23 radius,debug,packet Acct-Session-Time = 1831
16:08:23 radius,debug,packet NAS-Identifier = "ms64.Domain.co.uk"
16:08:23 radius,debug,packet NAS-IP-Address = HOTSPOT IP (ext)
16:08:23 radius,debug,packet Acct-Delay-Time = 0
16:08:23 radius,debug,packet received Accounting-Response with id 217 from 86.7.2
38.217:1813
16:08:23 radius,debug,packet Signature = 0x871644fa6cfd64e8d86175af2625cba6
16:08:23 radius,debug received reply for 3f:21a
16:08:23 radius,debug request 3f:21a processed
[username@ms64.Domain.co.uk] >