TP-Link TL-SG108E Managed Switch 8 Port Gigabit Ethernet LAN — Error codes & fixes
Troubleshooting guide for the TP-Link TL-SG108E Managed Switch 8 Port Gigabit Ethernet LAN. Diagnose an error code and find the fix.
PPPoE error
pppoe-errorThe router cannot establish an internet connection due to a PPPoE authentication error.
Source: TP-Link support — networking troubleshooting
Confidence: 85%
Verified Aug 9, 2026
No internet connection
no-internetThe router is up but devices have no internet, often from an ISP issue or a DNS problem.
Source: TP-Link support — networking troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Wi-Fi keeps dropping
wifi-dropThe laptop disconnects from Wi-Fi repeatedly, often from a driver issue or power saving.
Source: TP-Link support — networking troubleshooting
Confidence: 80%
Verified Aug 9, 2026
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