# Cambium ePMP2000 connection error.

**URL:** <https://community.cambiumnetworks.com/t/cambium-epmp2000-connection-error/62216>\
**Category:** Other Management Solutions\
**Created:** [June 18, 2019, 1:40pm UTC](https://community.cambiumnetworks.com/t/cambium-epmp2000-connection-error/62216 "2019-06-18T13:40:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jarred\_Dries](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/jarred_dries/32/12047_2.png) [@Jarred\_Dries](https://community.cambiumnetworks.com/u/Jarred_Dries)\
**Post date:** [June 18, 2019, 1:40pm UTC](https://community.cambiumnetworks.com/t/cambium-epmp2000-connection-error/62216/1 "2019-06-18T13:40:24Z")

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i have a sector mounted on a tower with perfect line of site to the subscriber and the subscriber is in the 90 degree radius. client still having problems with package loss..??

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<div class="post-metadata">

**Author:** ![Support\_Hardik1](https://d10gw3vjmzyp8.cloudfront.net/user_avatar/community.cambiumnetworks.com/support_hardik1/32/11547_2.png) [@Support\_Hardik1](https://community.cambiumnetworks.com/u/Support_Hardik1)\
**Post date:** [June 19, 2019, 8:45am UTC](https://community.cambiumnetworks.com/t/cambium-epmp2000-connection-error/62216/2 "2019-06-19T08:45:08Z")

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Do you see packet loss on the radio? It could be interference.  
  
May I know what is the software version on the AP and SM, please ensure they are on the latest/same release.  
  
Please check uplink/downlink RSSI (under Monitor - wireless) and the %age re-transmission and MCS distribution (under Monitor - Performance), this will give us a good idea on what could likely be causing this issue.  
  
You may also open a ticket with our support team for further assistance.

Please go to the Support Center portal:&nbsp;[https://support.cambiumnetworks.com](https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsupport.cambiumnetworks.com&data=02%7C01%7Chardik.patel%40cambiumnetworks.com%7C6ab2c81d59dd4088875b08d6eda48351%7C0e263e36340946228ac818d993e76eb6%7C0%7C0%7C636957688172815289&sdata=Ar7l1fzZp9Vv32QP6JcbQykd8JvEe4DCgPCi0R6%2FS9A%3D&reserved=0)&nbsp;and log in using your Cambium Single Sign-On (SSO), then click on "Submit a Request". You'll be taken to page with a drop-down menu to begin entering your ticket request.

For a detailed walk-through, please watch&nbsp;[this](https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D7I7H729JwSQ&data=02%7C01%7Chardik.patel%40cambiumnetworks.com%7C6ab2c81d59dd4088875b08d6eda48351%7C0e263e36340946228ac818d993e76eb6%7C0%7C0%7C636957688172825284&sdata=tZ322Zq9qP8L27FLNIpLYTso0zw%2BU3iNkSeVxCSyARc%3D&reserved=0)&nbsp;video.