Accessing DVR Issue

Hello there

We have here small network less than 50 IPs, all computers, servers and DVRs were connected directly to ADSL modem through unmanaged switch.

I've decided to replace modem with Sophos UTM (free license) in order to increase bandwidth and blocking several sites, etc.

Before Sohpos UTM, we are able to connect to DVRs from internal network through 34567 port & external mobile monitor thorugh 34599 port

Now after replacing ADSL modem with Sophos UTM, we aren't able to connect to DVRs anymore.

Here is the UTM interfaces configuration, that's all i did plus web filtering polices. nothing more, nothing less.

Kindly tell me what configurations do i need in order to get connected to DVRs with static IPs via 34567, 34599 ports from internal and external networks.

DVR Configuration:

IP:                                          41.XXX.XXX.98
Gateway:                              41.XXX.XXX.97  (ADSL Modem Second IP Interface)
Subnet Mask:                      255.255.255.248
Preferred DNS server:      41.128.225.225
Alternate DNS server:       41.128.225.226

Thanks in advance

Amr Khalil