rdk-03003
Moderate
Xfinity · Networking & Connectivity
Xfinity service could not establish upstream connection in time.
Quick Answer
Error code RDK-03003 on your Xfinity Networking & Connectivity means: Xfinity service could not establish upstream connection in time.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Check cable connections and tighten coax.
2
Power cycle gateway and wait full sync.
3
Check outage map/status for your area.
4
Bypass splitters where possible for testing.
5
Schedule line/signal check if persistent.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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