Unified Services Router Release Notes 
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Firmware version:
1.05B20_RU

New Features:
1. Support 3G dongle DWM-152 A1/A2/A3, DWM-156 A1/A2/A3, Huawei E1550, E173. 
2. Pre-Share key can be configurable in wireless wizard. 
3. Change design to disable auto refresh for Traffic Monitor by default. 

Problems Fixed:
1. IPv6 to IPv4 tunneling is not work. 
2. Internet web surfing is very slow for WLAN client if SPPE enabled. 
3. Remove CLI command which is not supported in DSR-250/250N. 
4. PPTP client is getting disconnected while uploading and downloading files using windows sharing. 
5. Device shell is getting stuck after running bulk traffic over PPTP/L2TP tunnel. 
6. Bandwidth Usage and Used applications are not displayed in dashboard. 
7. Default VLAN will be associated with all the wireless AP after reboot. 
8. Fixing L2TP doesn’t reconnects to L2TP server after reboot. 
9. Fixing wireless clients is not displayed on status page. 

Known Issues:
1. Bandwidth Limit not functioning when port name is used in Traffic selector 
2. PowerMode is not completely functional. 
3. Wan is not getting IP from IPv6 DHCP server in stateful mode. 
4. Netperf is unable to pass traffic over IPsec tunnel. 
5. Transparent Mode is not supported. 
6. Traffic is not going to device's LAN from PPTP/L2TP client after changing WAN ISP, unless PPTP server disables and then enables again. 
7. Observed ping loss from WLAN clients to internet. 
8. USB file sharing transmission will be disconnected if file size is over 600MB. 

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Firmware version:
1.05B06_RU

New Features:
1. Support SSH remote management from WAN port
2. Support LED and IPsec MIB.

Problems Fixed:
1. Improving link up time of WAN interface less than 1 minute after device power on.
2. Fixing the printer shared port detection issue.
3. Fixing PPTP pass through is not working.
4. Fixing SSL tunnel is disconnected when user tries to download 200 MB file.

Known Issues:
1. Bandwidth Limit not functioning when port name is used in Traffic selector
2. PowerMode is not completely functional.
3. Wan is not getting IP from IPv6 DHCP server in stateful mode.